release it all

3 years ago · e46b877c03
90 changed files with 1779 additions and 179 deletions
--- a/.gitattributes
+++ b/.gitattributes
@ -1,3 +1,4 @@
+*keys* filter=git-crypt diff=git-crypt
 *.eml filter=git-crypt diff=git-crypt
 *.mbox filter=git-crypt diff=git-crypt
 *.sec* filter=git-crypt diff=git-crypt
--- a/CAStore/genesis.yml
+++ b/CAStore/genesis.yml
@ -1,15 +0,0 @@
--- # genesis block
-ver: 0
-data:
- seq: 0
- payload: /ipfs/QmWM48KvyK9YyPjJt69erxVPN3nbXVMgZWrncRJhAVkGAv
- comment: "This is the genesis block"
-meta:
- seed: 0xb3560762
- salt: ~ # used in address computation
- txroot: ~
-audit:
- peerid: Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq
- tics: 1623830817245864895
- ip: 83.78.4.228
-prev: ZdtrjkYsAYUeBCs4DRjtVYwPevpxvHjGT2PRauANr3Vao
--- a/CAStore/nullblock.yml
+++ b/CAStore/nullblock.yml
@ -1,16 +0,0 @@
--- # null block
-ver: 0
-data:
- seq: -1
- payload: ~
- comment: "This is not a block (null block)"
-meta:
- seed: 0xb3560762
- salt: 12131054599640746025 # used in address computation
- salt: ~ # used in address computation
- txroot: ~
-audit:
- peerid: Anonymous
- tics: 0
- ip: 0.0.0.0
-prev: ~
--- a/README.md
+++ b/README.md
@ -12,11 +12,11 @@ layout: simple
   - Protect against [double][14] spending
   - [Transactions][11] can have additional data payload, signed by the sender (and there needs to be a way to [set it][5])
   - Blocks can have additional data payload (and there needs to be a way to set it)
-   - Implement a simple REST-like [web service API][1] which implements the following services and returns JSON data:
+   - Implement a simple REST-like [web service][1] [API](/api/) which implements the following services and returns JSON data:
     * Query the [block count][2].
     * Query a [single block][3] and return all its transaction data.
     * Query a [single transaction][4] and return all its data.
-     * [Create a transaction][5] from JSON data and accept it for [mining].
+     * Create a [transaction][5] from JSON [data][11] and accept it for [mining][6].

 ### Example of curl commands

@ -36,7 +36,7 @@ layout: simple

 ### Security Warning

- Blockchain are transparent and public so we encrypt private keys and other sensitive data,
+ Blockchains are transparent and public so we encrypt private keys and other sensitive data,
 however as it is just a toy, we expose **all the files** for educational purpose.

 >> ** PLEASE DO NOT USE IN A PRODUCTION ENVIRONMENT **
@ -59,14 +59,15 @@ layout: simple
 [1]: webservice.html
 [2]: http://127.0.0.1:8089/api/0.0/getheight
 [3]: http://127.0.0.1:8089/api/0.0/getblock
-[4]: http://127.0.0.1:8089/api/0.0/gettx
-[5]: http://127.0.0.1:8089/api/0.0/settx
+[4]: http://127.0.0.1:8089/api/0.0/gettx?encode=json&addr=txcoin
+[5]: http://127.0.0.1:8089/api/settx.html
 [6]: http://127.0.0.1:8089/api/0.0/minepool
-[7]: http://127.0.0.1:8089/api/0.0/getnodes
+[7]: http://127.0.0.1:8089/docs/nodes.html
+[7a]: http://127.0.0.1:8089/api/0.0/getnodes
 [8]: http://127.0.0.1:8089/api/0.0/config
 [9]: http://127.0.0.1:8089/docs/pow.html
 [10]: http://127.0.0.1:8089/docs/difficulties.html
-[11]: http://127.0.0.1:8089/api/transacion.html
+[11]: http://127.0.0.1:8089/api/transaction.html
 [12]: http://127.0.0.1:8089/docs/bkreward.html
 [13]: http://127.0.0.1:8089/admin/keygen.html
 [14]: http://127.0.0.1:8089/docs/UTXO.html
--- a/admin/config.md
+++ b/admin/config.md
@ -0,0 +1,18 @@
+---
+layout: simple
+---
+## Config parameters
+
+
+Important parameter to be updated:
+
+- genhash
+- txcoin
+- coinbase public key &amp; signature
+
+
+file : [$SITE/config.yml][1]
+
+
+[1]: /api/v0.0/getcas?dir=.&addr=config
+
--- a/admin/index.md
+++ b/admin/index.md
@ -0,0 +1,21 @@
+---
+layout: simple
+---
+# ToyChain Admin Page
+
+1. [signup][1] ([keygen][1])
+1. [settings][2]
+1. [README][3]
+
+
+## Elliptic Curves Keys
+
+1. [EC keys][4]
+1. [coinbase key][5]
+
+
+[1]: keygen.html
+[2]: settings.html
+[3]: /README.html
+[4]: /api/v0.0/getcas?dir=secrets&addr=keys
+[5]: /api/v0.0/getcas?dir=.&addr=registration
--- a/admin/keygen.js
+++ b/admin/keygen.js
@ -0,0 +1,18 @@
+const useCapture = true; // capture, bubbling: false
+var elem = document.getElementsByTagName('button')[0];
+elem.addEventListener('click',keygen,useCapture);
+
+function keygen(ev) {
+ console.log('keygen: %o',ev)
+ let name = document.getElementsByTagName('input')[0].value;
+ let namep = name.replace(/ /g,'+');
+ let url = api_url + `keygen?name=${namep}`;
+ let data = fetch(url).then(resp => resp.json()).
+    then(obj => {
+      let tarea = document.getElementsByTagName('textarea')[0];
+      tarea.innerText = JSON.stringify(obj.identity);
+
+      console.log('keygen.obj.keys:',obj.keys);
+    }).
+    catch(console.error);
+}
--- a/admin/keygen.md
+++ b/admin/keygen.md
@ -0,0 +1,22 @@
+---
+layout: simple
+base: "../"
+---
+## Toy-Chain : Key pair Generation
+
+<input name="name" placeholder="name (optional)"><button>create</button>
+
+identity:
+<textarea>
+</textarea>
+<!--<button>save</button>-->
+
+key files: [$SITE/secrets/keys.yml][1]
+
+<script src="keygen.js"></script>
+
+
+[1]: /api/v0.0/getcas?dir=secrets&addr=keys
+
+
+
--- a/admin/manual-registration.md
+++ b/admin/manual-registration.md
@ -0,0 +1,19 @@
+---
+layout: simple
+---
+# manual miner registration
+
+1. edit [templ/txcoin.yml][1]
+{% comment %}
+2. run ``signtx.pl templ/txcoin.yml``
+3. view [templ/txcoin.yml.sig][2]
+4. update [registration.yml][4]
+{%- endcomment -%}
+3. run [t/genesis.t][3]
+4. verify [registration.yml][4]
+
+
+[1]: /api/v0.0/getyml?f=templ/txcoin.yml
+[2]: /api/v0.0/getyml?f=templ/txcoin.yml.sig&encode=json
+[3]: /t/genesis.t
+[4]: /api/v0.0/getyml?f=registration.yml&encode=json
--- a/admin/new-settings.md
+++ b/admin/new-settings.md
@ -0,0 +1,27 @@
+---
+layout: simple
+---
+## ToyChain Settings
+
+In order to have a functional blockchain you need
+
+1. [generate][1] a node [keypair][9] (ECDSA for signing transactions)
+1. [register][2] as a miner by creating a coinbase transaction
+1. create [genesis][3] block
+1. update [config][10] file (and restart API)
+1. connect to peers on the [network][4]
+1. collect transactions from [txpool][5] and validate them
+1. [minepool][6]
+2. [explore][8] the [chain][7]
+
+[1]: /admin/keygen.html
+[2]: /admin/register.html
+[3]: /docs/genesis.html
+[4]: /api/nodes.html
+[5]: /docs/txpool.html
+[6]: /api/minepool.html
+[7]: /docs/chain.html
+[8]: /api/explore.html
+[9]: /api/v0.0/getcas?dir=secrets&addr=keys
+[10]: /admin/config.html
+[11]: /api/v0.0/getcas?dir=.&addr=config
--- a/admin/register.js
+++ b/admin/register.js
@ -0,0 +1,47 @@
+const useCapture = true; // capture, bubbling: false
+var elem = document.getElementsByTagName('button')[0];
+elem.addEventListener('click',register,useCapture);
+
+let promises = [];
+promises.push( get_config() );
+promises.push( get_keys() );
+
+function register(ev) {
+ console.log('register: %o',ev)
+
+ let name = document.getElementsByName('name')[0].value;
+ let peerid = document.getElementsByName('peerid')[0].value;
+ let minerid = document.getElementsByName('minerid')[0].value;
+ let account = document.getElementsByName('account')[0].value;
+ let bkreward = document.getElementsByName('bkreward')[0].value;
+
+ let namep = name.replace(/ /g,'+');
+ let url = api_url + `register?account=${namep}&bkreward=${bkreward}`;
+ let data = fetch(url).then(resp => resp.json());
+ console.log('register.data:',data);
+ return data;
+}
+
+Promise.all(promises).then( ar => {
+ let config = ar[0].config;
+ let keys = ar[1].data;
+ console.log('config:',config);
+ console.log('keys:',keys);
+
+ document.getElementsByName('name')[0].value = keys.identity.name;
+ document.getElementsByName('peerid')[0].value = keys.identity.public;
+ document.getElementsByName('minerid')[0].value = keys.miner.public;
+ document.getElementsByName('account')[0].value = keys.distribution.public;
+ document.getElementsByName('bkreward')[0].value = config.bkreward;
+
+}).
+catch(console.error);
+
+function get_config() {
+ let url = api_url + 'config';
+ return fetch(url).then(resp => resp.json()).catch(console.error)
+}
+function get_keys() {
+ let url = api_url + 'getcas?dir=secrets&addr=keys';
+ return fetch(url).then(resp => resp.json()).catch(console.error)
+}
--- a/admin/register.md
+++ b/admin/register.md
@ -0,0 +1,21 @@
+---
+layout: simple
+base: "../"
+---
+## Toy-Chain : Miner Registration
+
+name: <input name="name" placeholder="your name"> ([edit][1])
+<br>peerid: <input name="peerid" placeholder="peerid" size=44>
+<br>minerid: <input name="minerid" placeholder="minerid" size=44>
+<br>account: <input name="account" placeholder="publickey of coinbase destination" size=44>
+<br>block reward:<input name="bkreward" placeholder="block reward" size=3>
+<br><button>register</button> (not implemented yet: use [manual registration][2])
+
+confirmation:
+<span id=output></span>
+
+<script src="register.js"></script>
+
+
+[1]: /admin/keygen.html
+[2]: /admin/manual-registration.html
--- a/admin/settings.md
+++ b/admin/settings.md
@ -0,0 +1,19 @@
+---
+layout: simple
+---
+## ToyChain Settings
+
+In order to have a functional blockchain you need
+
+1. [generate][1] a node [keypair][2] ([ECDSA] for signing transactions)
+1. [register][4] as a miner by creating a coinbase transaction
+
+
+### comming soon :
+
+1. [new-settings](new-settings.html)
+
+[1]: /admin/keygen.html
+[2]: /api/v0.0/getcas?dir=secrets&addr=keys
+[3]: /api/v0.0/getyml?f=secrets/keys.yml&encode=json
+[4]: /admin/register.html
--- a/api/audit.md
+++ b/api/audit.md
@ -0,0 +1,15 @@
+---
+layout: simple
+api_url: '/api/v0.0/'
+---
+## API audit
+
+This api call allow you to audit the server
+
+endpoint: '{{page.api_url}}audit'
+
+
+example: [{{page.api_url}}audit]({{page.api_url}}audit)
+
+
+
--- a/api/cmd.md
+++ b/api/cmd.md
@ -0,0 +1,15 @@
+---
+layout: simple
+api_url: '/api/v0.0/'
+---
+## API cmd
+
+This api call allow you to run generic commands on the server
+
+endpoint: '{{page.api_url}}cmd'
+
+
+example: [{{page.api_url}}cmd/what]({{page.api_url}}cmd/what)
+
+
+
--- a/api/config.md
+++ b/api/config.md
@ -0,0 +1,22 @@
+---
+layout: simple
+api_url: '/api/v0.0/'
+cmd: config
+---
+## API {{page.cmd}}
+
+This api call allow you see the {{page.cmd}} parameters
+
+endpoint: '{{page.api_url}}{{page.cmd}}'
+
+example: [{{page.api_url}}{{page.cmd}}]({{page.api_url}}{{page.cmd}})
+
+
+### Alternative
+
+you can also get the config.yml file directly: 
+- [$SITE/config.yml](/api/v0.0/getcas?dir=.&addr=config)
+- [$SITE/config.yml](/config.yml)
+
+
+
--- a/api/env.md
+++ b/api/env.md
@ -0,0 +1,16 @@
+---
+layout: simple
+api_url: '/api/v0.0/'
+cmd: env
+---
+## API {{page.cmd}}
+
+This api call allow you to {{page.cmd}} the server
+
+endpoint: '{{page.api_url}}{{page.cmd}}'
+
+
+example: [{{page.api_url}}{{page.cmd}}]({{page.api_url}}{{page.cmd}})
+
+
+
--- a/api/explore.md
+++ b/api/explore.md
@ -0,0 +1,16 @@
+---
+layout: simple
+api_url: '/api/v0.0/'
+cmd: explore
+---
+## API {{page.cmd}}
+
+This api call allow you to {{page.cmd}} the server
+
+endpoint: '{{page.api_url}}{{page.cmd}}'
+
+
+example: [{{page.api_url}}{{page.cmd}}]({{page.api_url}}{{page.cmd}})
+
+
+
--- a/api/getblock.js
+++ b/api/getblock.js
@ -0,0 +1,22 @@
+
+var url = api_url + 'getblock'
+
+var elem = document.getElementsByTagName('div')[0];
+let button = document.getElementsByTagName('button')[0];
+
+
+
+let promised_peerid = fetch(url).
+  then(resp => resp.json()).
+  then(obj => {
+    console.log('peerid.obj:',obj);
+    let buf = elem.innerHTML;
+    buf = buf.replace(':peerid',obj.peerid);
+    buf = buf.replace(':name',obj.name);
+    elem.innerHTML = buf;
+    return obj
+  }).
+  catch(console.error);
+
+
+console.log('peerid.js loaded');
--- a/api/getblock.md
+++ b/api/getblock.md
@ -0,0 +1,24 @@
+---
+layout: simple
+api_url: '/api/v0.0/'
+cmd: getblock
+---
+## API {{page.cmd}}
+
+This api call allow you to see the content of a block
+
+endpoint: '{{page.api_url}}{{page.cmd}}'
+
+
+example: [{{page.api_url}}{{page.cmd}}?n=31]({{page.api_url}}{{page.cmd}}?n=31)
+
+n: <input name="n" type="integer" value="" placeholder="height of the block">
+<br>hash: <input name="hash" type="text" value="" placeholder="hash value of the block">
+<br>addr: <input name="addr" type="text" value="" placeholder="addr of the block content">
+<button>view</button>
+
+## json:
+<textarea></textarea>
+
+<script src="getblock.js"></script>
+
--- a/api/index.md
+++ b/api/index.md
@ -0,0 +1,51 @@
+---
+layout: simple
+base: "../"
+version: 'v0.0'
+api_url: '/api/v0.0'
+---
+# ToyChain API ({{page.version}})
+
+api endpoint : [http://127.0.0.1:8089/api/{{page.version}}/*][1]
+
+### API development status
+
+1. [status](/docs/status.html)
+2. [chain viewer](/docs/chain.html)
+
+### available commands :
+
+* [{{page.api_url}}/audit](audit.html)
+* [{{page.api_url}}/cmd](cmd.html)
+* [{{page.api_url}}/config](config.html)
+* [{{page.api_url}}/env](env.html)
+* [{{page.api_url}}/getblock](getblock.html)
+* [{{page.api_url}}/getcas](getcas.html)
+* [{{page.api_url}}/getchain](getchain.html)
+* [{{page.api_url}}/getheads](getheads.html)
+* [{{page.api_url}}/getheight](getheight.html)
+* [{{page.api_url}}/getpool](getpool.html)
+* [{{page.api_url}}/gettx](gettx.html)
+* [{{page.api_url}}/mergechain](mergechain.html)
+* [{{page.api_url}}/minepool](minepool.html)
+* [{{page.api_url}}/peerid](peerid.html)
+* [{{page.api_url}}/sendhead](sendhead.html)
+* [{{page.api_url}}/setcas](setcas.html)
+* [{{page.api_url}}/settx](settx.html)
+* [{{page.api_url}}/update](update.html)
+* [{{page.api_url}}/version](version.html)
+
+### CURL commands:
+
+- example of curl commands: [curl-test-script.sh](/curltest.sh)
+
+
+### Initial steps 
+
+2. [register][2] yourself as a miner (in order to get the coinbase)
+1. create the [genesis][3] block
+
+[1]: /api/version
+[2]: /admin/register.html
+[3]: /docs/genesis.html
+
--- a/api/nodes.js
+++ b/api/nodes.js
@ -0,0 +1,45 @@
+
+
+elem = document.getElementsByTagName('table')[0];
+
+getnodes();
+async function getnodes() {
+  let config = await fetch(api_url + 'config').
+  then(resp => resp.json()).
+  then(obj => { return obj.config }).
+  catch(console.error);  
+  console.log('nodes.config:',config);
+
+  let n = 1;
+  let list = '<ul>';
+  let nodes = [];
+  for (node of config.nodes) {
+    console.log('nodes.node:',node);
+    let [ip,port] = node.split(':');
+    let info = await get_info(node);
+    nodes.push(info);
+    let url=`http://${node}`;
+    let status='offline';
+    let info_url = `${url}${api_url}getinfo`;
+    list += `<li>node${n} (:${port}) <a href="${url}">${node}</a> ${status} <a href="${info_url}">information</a></li>\n`;
+    console.log('nodes.info:',info);
+    n++;
+  }
+  list += '</ul>';
+  let elem = document.getElementById('list');
+  elem.innerHTML = list;
+  return nodes;
+}
+function get_info(node) {
+ let [ip,port] = node.split(':');
+ let remote_api_url = `http://${node}${api_url}`;
+ let promised = fetch(remote_api_url + 'getinfo').
+    then(resp => resp.json).
+    then(obj => { let info = obj.info; return info; }).
+    catch(console.error);
+ return promised;
+}
+
+
+
+console.log('peerid.js loaded');
--- a/api/nodes.md
+++ b/api/nodes.md
@ -0,0 +1,31 @@
+---
+layout: simple
+---
+# Toy Chain : Peer Networks
+
+We count :n active [nodes][1] on the *[ToyChain][2] MainNet* .
+
+
+| nodename | port | endpoint | status | information |
+|----------|------|----------|--------|-------------|
+| :nname | :port | :url | :status | :info |
+
+<div id=list></div>
+
+<!--
+<table>
+<tr><th>ip</th><th>port</th><th>endpoint</th><th>information</th></tr>
+<tr><td>:ip</td><td>:port</td><td>:url</td><td>:info</td></tr>
+</table>
+-->
+
+<br>--&nbsp;
+<br><small>by: <span id=sig></span> src: [md],[css],[js]</small>
+
+<script src="nodes.js"></script>
+
+[1]: /api/v0.0/getnodes
+[2]: /toychain
+[md]: nodes.md
+[css]: /style.css
+[js]: nodes.js
--- a/api/peerid.js
+++ b/api/peerid.js
@ -0,0 +1,20 @@
+
+var url = api_url + 'peerid'
+
+elem = document.getElementsByTagName('div')[0];
+
+
+let promised_peerid = fetch(url).
+  then(resp => resp.json()).
+  then(obj => {
+    console.log('peerid.obj:',obj);
+    let buf = elem.innerHTML;
+    buf = buf.replace(':peerid',obj.peerid);
+    buf = buf.replace(':name',obj.name);
+    elem.innerHTML = buf;
+    return obj
+  }).
+  catch(console.error);
+
+
+console.log('peerid.js loaded');
--- a/api/peerid.md
+++ b/api/peerid.md
@ -0,0 +1,15 @@
+---
+layout: simple
+---
+# API Peerid
+
+
+This page allow you to see your peerid (i.e. node identity)
+
+```
+your peerid is :peerid;
+your name is :name;
+```
+
+
+<script src="peerid.js"></script>
--- a/api/transaction.js
+++ b/api/transaction.js
@ -0,0 +1,53 @@
+
+let button = document.getElementById('submit');
+button.addEventListener('click',createtx,false);
+
+loadtx('templ/txexample.yml');
+
+function createtx() {
+
+  let txyml = document.getElementsByName('tx').value;
+
+  let promised = fetch(api_url + 'settx?',{method:'POST',data}).
+  then(resp => resp.json()).
+  then(obj => {
+
+    elem = document.getElementById('json');
+    elem.innerText = JSON.stringify(obj);
+
+    let bkcontent = obj.bkcontent;
+    let txmerkle = bkcontent.txmeta.merkle
+    if (typeof(txmerkle) != 'undefined') {
+      let list = '<ul>';
+      for (let txa of txmerkle) {
+        console.log('getblock.txa:',txa);
+        let tx_url = api_url + `gettx?addr=${txa}`
+        list += `<li><a href="${tx_url}">${txa}</a></li>`
+      }
+      list += '</ul>';
+      elem = document.getElementById('list');
+      elem.innerHTML = list;
+    }
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+function loadtx(f) {
+  let url = api_url + `getyml?f=${f}`;
+  let promised = fetch(`/${f}`).
+  then(resp => resp.text()).
+  then(yaml => {
+    document.getElementsByName('tx')[0].value = yaml;   
+    return yaml;
+  }).
+  catch(console.error);
+}
+
+// ----------------------------------------------------
+
+
+console.log('transaction.js loaded');
--- a/api/transaction.md
+++ b/api/transaction.md
@ -0,0 +1,43 @@
+---
+layout: simple
+---
+## ToyChain Transaction 
+
+
+Transactions block is an added record to the block which allow to attached values transfer to the block.
+
+A transaction descript a transfer of value between account protected via [ECC][1]
+(we use [secp256k1][5] see code [ECKeys.pm][2]).
+
+You can register your [keypair][4] in the [admin](/admin/) section under [signup / keygen][3].
+
+A transaction has inputs, outputs, and signatures,
+in order be valid 
+
+- the total of inputs must be greater than the total of ouputs
+- every account on the input side must have enough balance to satisfy the transactions
+- all signature attached to the transaction must be authentic and the signed message not tempered
+
+example of transaction in ([yaml][6] format)
+
+<textarea name=tx rows=7></textarea>
+{% comment %}
+<button id=sign>sign</button>
+<button id=validate>validate</button>
+{%- endcomment -%}
+<button id=submit>submit</button>
+
+<textarea id=json></textarea>
+
+txaddr: <span id=txaddr><i>:txaddr</i></span>
+
+[1]: https://duckduckgo.com?q=Elliptic+Curve+Cryptography
+[2]: /lib/ECKeys.pm
+[3]: /admin/keygen.html
+[4]: /templ/keys.yml
+[5]: https://duckduckgo.com?q=secp256k1+!g
+[6]: /templ/txexample.yml
+
+<a href="/docs/txpool.html"><button id=txpool>txpool</button></a>
+
+<script src="transaction.js"></script>
--- a/bin/apirun.pl
+++ b/bin/apirun.pl
@ -1,6 +1,6 @@
 #!/usr/bin/perl -w
 #
-# Intent: testing the API server
+# Intent: running the ToyChain API server
 #

 use lib 'lib';
@ -12,7 +12,7 @@ apigw_run();

 exit $?;

-1; # $Source: /my/perl/script/testapi.pl $
+1; # $Source: /my/perl/script/apigw.pl $



--- a/bin/signtx.pl
+++ b/bin/signtx.pl
@ -12,7 +12,7 @@ use ECKeys qw(ecsign ecverif getPeerid loadKeys);
 use YAML::Syck qw(LoadFile Dump DumpFile);

 my $keys = loadKeys($ENV{SITE}.'/secrets/keys.yml');
-our $aliases = &loadYaml($ENV{SITE}.'/secrets/aliases.yml');
+our $nicknames = &loadYaml($ENV{SITE}.'/secrets/nicknames.yml');

 my $keyfile = $ENV{SITE}.'/secrets/coinbase.yml';
 if (-e $keyfile) {
@ -24,15 +24,15 @@ if (-e $keyfile) {
  }
 }

-foreach my $id (keys %{$keys}) { # list all known aliases ...
+foreach my $id (keys %{$keys}) { # list all known nicknames ...
   my $pub = $keys->{$id}{public};
-   $aliases->{$pub} = $id if (! defined $aliases->{$pub});
+   $nicknames->{$pub} = $id if (! defined $nicknames->{$pub});
   printf " - %-13s: %-46s (%-36s);",$id,$pub,$keys->{$id}{name};
   printf " bot:%s\n", &botname::botname($pub);
 }

 printf "--- keys %s...\n",Dump($keys);
-#printf "--- aliases %s...\n",Dump($aliases);
+#printf "--- nicknames %s...\n",Dump($nicknames);

 my $txf = shift;
 my $tx = LoadFile($txf);
@ -50,7 +50,7 @@ foreach my $sign (@{$tx->{signatures}}) {
 printf "--- signatures %s...\n",Dump(\%signatures);
 foreach my $in (@{$tx->{inputs}}) {
      my ($pub) = keys %{$in};
-      my $id = (exists $aliases->{$pub}) ? $aliases->{$pub} : $pub;
+      my $id = (exists $nicknames->{$pub}) ? $nicknames->{$pub} : $pub;
      my $key58 = (exists $keys->{$id}) ? $keys->{$id}{public} : $pub;
      my $value = $in->{$pub};
      $valuein += $value;
@ -59,7 +59,7 @@ foreach my $in (@{$tx->{inputs}}) {
 }
 foreach my $out (@{$tx->{outputs}}) {
      my ($pub) = keys %{$out};
-      my $id = (exists $aliases->{$pub}) ? $aliases->{$pub} : $pub;
+      my $id = (exists $nicknames->{$pub}) ? $nicknames->{$pub} : $pub;
      my $key58 = (exists $keys->{$id}) ? $keys->{$id}{public} : $pub;
      my $value = $out->{$pub};
      $valueout += $value;
@ -91,7 +91,7 @@ my $txio = {

 foreach my $pub (keys %delta) {
  my $value = -$delta{$pub};
-  my $id = (exists $aliases->{$pub}) ? $aliases->{$pub} : $pub;
+  my $id = (exists $nicknames->{$pub}) ? $nicknames->{$pub} : $pub;
  if (exists $signatures{$pub}) {
    my $key58 = (exists $keys->{$id}) ? $keys->{$id}{public} : $pub;
    my $msg;
@ -114,7 +114,7 @@ foreach my $pub (keys %delta) {
        $signatures{$pub} = [ $sig, $date, $msg ];
      }
    } else {
-      my $id = (exists $aliases->{$pub}) ? $aliases->{$pub} : $pub;
+      my $id = (exists $nicknames->{$pub}) ? $nicknames->{$pub} : $pub;
      if (exists $keys->{$id}{private}) {
        my $sig = &ecsign($id,$msg);
        printf "sig: %s: %s\n",$id,$sig;
--- a/bin/yml2json.sh
+++ b/bin/yml2json.sh
@ -0,0 +1,5 @@
+#
+
+cat $1 | json_xs -f yaml -t json | tee ${1%.*}.json
+echo ''
+ls -l ${1%.*}.json
--- a/config.yml
+++ b/config.yml
@ -1,45 +1,29 @@
 --- # toychain's config
-version: 1.12
+version: 1.13
 chain: toychain
 apiver: '0.0'
-ipfsgw: 8390
+
+# ------------------------------------------
+# node specifics
 port: 8089

+# ------------------------------------------
 # p2p network
 # api = p2p+1
 nodes:
+#   - 127.0.0.1:8089
    - 127.0.0.1:8091
    - 127.0.0.2:8093
    - 127.0.0.3:8095
    - 127.0.0.4:8097
    - 127.0.0.5:8099
-
+# ------------------------------------------
 # block parameters :
 bkver: 0
-bkreward: 100
 coinbase:
-  reward: 50
-  public: ZPD9SRTr5ZMx6coZV6NrUxgmVfCkqB55gTdAwJKQVjp7W
-  signature: ~
-
-genhash: Z9BEepHz9jLWzNebDEZTrEKusuU9zomFoaaPxngCQ5D39
-genhash: Z9BEdvJt9F2xeY6BP3gXMvGikFvcUv1kvESQyhSKznLDi
-genhash: Z9BEeytxKdWLtGhirNstvvRtJ4273GmVqJ7r2pKmoCR7G
-genhash: Z9BEdXmPNa1DkEJKQ1BhuMg7M1nHRD6NLKoXpJ6X84NqK
-
-nullhash: Z9BEeWD4Mww7yrXyPRXrfM2y6FxsQGfaNPzC8DxWq4ATq
-
-txgen: Ztxrms5c5oKqb9Zof3xeC5Q2ZQjSaWv7FU4rAxe2s3sP
-txgen: ZTxoBj3SNdKGMxXLTdxScnmScN7uCveoM2zPmDoMS4CN
-txgen: ZTxGeH4J9oWMci2pcJ7yZ1baMb47i7zd6ihHissKifvQ
-
-txcoin: ZCBuCkQFRBeiGnANEwb65TZptSTUpm62WYS4Xj9gkMLU
-txcoin: ZCBtx9SS9n57R2cx3AAuRDKJ4b9WsWA5MoTVEtxGQAdV
-txcoin: ZCBtx7Wg59hvMogWDchKVcGUMo68qDe2dkRfzaskAh3G
-
+    reward: 100

 # Proof of Work option
 difficulty: 5
 maxdiff: 7
-# CAstore options
-trackmode: 1
+# ------------------------------------------
--- a/config0.yml
+++ b/config0.yml
@ -1,23 +0,0 @@
--- # toychain's config
-version: 1.06
-chain: toychain
-apiver: '0.0'
-ipfsgw: 8390
-port: 8089
-
-# p2p network = api+1
-apis:
-    - 127.0.0.1:8091
-    - 127.0.0.2:8093
-    - 127.0.0.3:8095
-    - 127.0.0.4:8097
-    - 127.0.0.5:8099
-
-# block parameters :
-bkver: 0
-bkreward: 100
-# Proof of Work option
-difficulty: 5
-maxdiff: 7
-# CAstore options
-trackmode: 1
--- a/curltest.sh
+++ b/curltest.sh
@ -1,7 +1,7 @@
 #

-#curl http://127.0.0.1:8089/api/0.0/version
-#curl http://127.0.0.1:8089/api/0.0/audit
+curl http://127.0.0.1:8089/api/version
+curl http://127.0.0.1:8089/api/0.0/audit
 curl http://127.0.0.1:8089/api/0.0/getheight
 echo ''
 curl http://127.0.0.1:8089/api/0.0/getheads
@ -12,11 +12,19 @@ curl -s http://127.0.0.1:8089/api/0.0/getblock?n=30
 echo ''
 curl -s http://127.0.0.1:8089/api/0.0/gettx?txaddr=ZTxB1ritiikyhjTXg28V7AjfqwkDyD8woJoz1yjC1T75
 echo ''
-curl -s http://127.0.0.1:8089/api/0.0/gettx?txaddr=ZtxqdiZ8wwpEN5dScJf1byU6hjfBLoSrFmCrUVNJmqPc
+curl -s http://127.0.0.1:8089/api/0.0/gettx?txaddr=ZtxqdiZ8wwpEN5dScJf1byU6hjfBLoSrFmCrUVNJmqPc&encode=json
 echo ''
-curl -s http://127.0.0.1:8089/api/0.0/gettx?txaddr=Ztxrms5c5oKqb9Zof3xeC5Q2ZQjSaWv7FU4rAxe2s3sP
+curl -s http://127.0.0.1:8089/api/0.0/gettx?txaddr=Ztxrms5c5oKqb9Zof3xeC5Q2ZQjSaWv7FU4rAxe2s3sP&encode=base58f
 echo ''
-cat txpool/tx.yml | sed -e "s/$/%0a/g" | curl -s -X POST http://127.0.0.1:8089/api/0.0/settx -d @-
+# verifying a transaction
+cat $SITE/templ/tx.yml | sed -e "s/$/%0a/g" | curl -s -X POST http://127.0.0.1:8089/api/0.0/istxvalid -d @-
+cat $SITE/templ/tx02.yml | sed -e "s/$/%0a/g" | curl -s -X POST http://127.0.0.1:8089/api/0.0/istxvalid -d @-
+cat $SITE/templ/tx02.json | curl -s -X POST http://127.0.0.1:8089/api/0.0/istxvalid -d @-
+
+# sending a transaction
+cat $SITE/templ/tx02.yml | sed -e "s/$/%0a/g" | curl -s -X POST http://127.0.0.1:8089/api/0.0/settx -d @-
+cat $SITE/templ/tx02.json | curl -s -X POST http://127.0.0.1:8089/api/0.0/settx -d @-
+cat txudj.yml | json_xs -f yaml |  curl -s -X POST http://127.0.0.1:8089/api/0.0/istxvalid -d @-

 curl -s http://127.0.0.1:8089/api/0.0/gettx?txaddr=ZtxiE2X3R7DbmrZXQrfkrRjcgvYjjJhLVBZjTJMY1zVi
 echo ''
@ -25,6 +33,9 @@ echo ''
 curl -s http://127.0.0.1:8089/api/0.0/getpool
 echo ''
 curl -s http://127.0.0.1:8089/api/0.0/minepool
+echo ''
+curl -s http://127.0.0.1:8089/api/0.0/sendhead?hash=Z9BEe8qEZdsfsySpFQFgfUvo7zwYnVPPrdizGmS1JhDvt
+
 echo ''
 curl -s "http://127.0.0.1:8089/api/0.0/getcas?addr=ZNULLSNLDcn169AJMjXuVLrQBPDFZoF3nzz4HiqvaFsA&dir=CAStore"
 echo ''
--- a/docs/UTXO.md
+++ b/docs/UTXO.md
@ -0,0 +1,10 @@
+---
+layout: simple
+---
+# Unspend TXO
+
+The unspend transaction outputs are defining the (mutable) state of the blockchain,
+we choose to aggregate them per addresses such that we only have to store the balance of addresses which
+have a positive balance; rather than maintaning a complete list of unspend transactions.
+
+- [UTXO](/api/v0.0/getjson?obj=TXPOOL::UTXO)
--- a/docs/block.js
+++ b/docs/block.js
@ -0,0 +1,111 @@
+
+let button = document.getElementsByTagName('button')[0];
+button.addEventListener('click',getblock,false);
+
+
+function getblock() {
+
+  let n = document.getElementsByName('n').value;
+  let hash = document.getElementsByName('hash').value;
+  let addr = document.getElementsByName('addr').value;
+    let query = [];
+  if (n != '') {
+    query.push(`n=${n}`)
+  } else if (hash != '') {
+    query.push(`hash=${hash}`)
+  } else if (addr != '') {
+    query.push(`addr=${addr}`)
+  }
+
+  document.getElementById('comment').innerText = '';
+  let promised = fetch(api_url + 'getblock?' + query.join('&')).
+  then(resp => resp.json()).
+  then(obj => {
+    let elem;
+    let payload_value = obj.bkcontent.data.payload;
+    let payload_url = `/api/getblock?addr=${obj.bkaddr}`
+    if (payload_value.match('/ipfs/')) {
+      payload_url = 'https://ipfs.blockringtm.ml'+ payload_value
+    } else if (payload_value.match('/https?:|\.htm/')) {
+      payload_url = payload_value;
+    }
+    let payload_link = `<a href="${payload_url}">${payload_value}</a>`;
+
+    document.getElementsByName('hash')[0].value = obj.bkhash;
+    document.getElementsByName('addr')[0].value = obj.bkaddr;
+    document.getElementById('prev').innerHTML = `<a href="/api/v0.0/getblock?hash=${obj.bkprev}">${obj.bkprev}</a>`;
+    document.getElementById('seq').innerText = obj.bkcontent.data.seq;
+    document.getElementById('payload').innerHTML = payload_link;
+    document.getElementById('comment').innerText = obj.bkcontent.data.comment;
+    document.getElementById('txroot').innerText = obj.bkcontent.meta.txroot || '?';
+    document.getElementById('hash').innerText = obj.bkhash
+    document.getElementById('pow').innerText = obj.pow
+    document.getElementById('api').innerHTML = `(<a href="/api/v0.0/getblock?hash=${obj.bkhash}">json</a>)`;
+
+    elem = document.getElementById('json');
+    elem.innerText = JSON.stringify(obj);
+
+    let bkcontent = obj.bkcontent;
+    let txmerkle = bkcontent.txmeta.merkle
+    if (typeof(txmerkle) != 'undefined') {
+      let list = '<ul>';
+      for (let txa of txmerkle) {
+        console.log('getblock.txa:',txa);
+        let tx_url = api_url + `gettx?addr=${txa}`
+        list += `<li><a href="${tx_url}">${txa}</a></li>`
+      }
+      list += '</ul>';
+      elem = document.getElementById('list');
+      elem.innerHTML = list;
+    }
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+
+// ----------------------------------------------------
+
+async function getnodes() {
+  let config = await fetch(api_url + 'config').
+  then(resp => resp.json()).
+  then(obj => { return obj.config }).
+  catch(console.error);  
+  console.log('nodes.config:',config);
+
+  let n = 1;
+  let list = '<ul>';
+  let nodes = [];
+  for (node of config.nodes) {
+    console.log('nodes.node:',node);
+    let [ip,port] = node.split(':');
+    let info = await get_info(node);
+    nodes.push(info);
+    let url=`http://${node}`;
+    let status='offline';
+    let info_url = `${url}${api_url}getinfo`;
+    list += `<li>node${n} (:${port}) <a href="${url}">${node}</a> ${status} <a href="${info_url}">information</a></li>\n`;
+    console.log('nodes.info:',info);
+    n++;
+  }
+  list += '</ul>';
+  let elem = document.getElementById('list');
+  elem.innerHTML = list;
+  return nodes;
+}
+function get_info(node) {
+ let [ip,port] = node.split(':');
+ let remote_api_url = `http://${node}${api_url}`;
+ let promised = fetch(remote_api_url + 'getinfo').
+    then(resp => resp.json).
+    then(obj => { let info = obj.info; return info; }).
+    catch(console.error);
+ return promised;
+}
+
+
+
+console.log('heads.js loaded');
--- a/docs/block.md
+++ b/docs/block.md
@ -0,0 +1,39 @@
+---
+layout: simple
+---
+# ToyChain's Block
+
+A block in ToyChain blockchain is 80 bytes
+
+n: <input name=n size=3> <span id=comment></span>
+<br>hash: <input name=hash size=43>
+<br>addr: <input name=addr size=43>
+<br>prev: <span id=prev><i>:prev</i></span>
+<br><button>fetch</button>
+
+<textarea id=json></textarea>
+
+Here is the content of the requested block <span id=api></span>
+
+- seq: <span id=seq>#.</span>
+  payload : "<span id=payload><i>:payload</i></span>"
+- hash: <span id=hash><i>:hash</i></span>
+  pow: <span id=pow><i>:pow</i></span>
+- txroot: <span id=txroot><i>:txroot</i></span>
+
+<div id=content></div>
+
+List of attached transactions :
+
+<div id=list></div>
+
+
+
+<script src="block.js"></script>
+
+
+
+
+
+
+
--- a/docs/chain.js
+++ b/docs/chain.js
@ -0,0 +1,30 @@
+
+
+getchain();
+function getchain() {
+  let promised = fetch(api_url + 'getchain').
+  then(resp => resp.json()).
+  then(obj => {
+    let elem = document.getElementById('json');
+    elem.innerText = JSON.stringify(obj);
+
+    let list = '<pre>';
+    for (let bh of obj.chain) {
+      console.log('getchain.bh:',bh);
+      let blk_url = api_url + `getblock?hash=${bh}`;
+      list += `<a href="${blk_url}">${bh}</a>\n`
+    }
+    list += '</pre>';
+    elem = document.getElementById('list');
+    elem.innerHTML = list;
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+// ----------------------------------------------------
+console.log('chain.js loaded');
+
--- a/docs/chain.md
+++ b/docs/chain.md
@ -0,0 +1,22 @@
+---
+layout: simple
+---
+# ToyChain's Chain View
+
+The ToyChain blockchain is a list of basic 80 Bytes blocks,
+each block is address with a base58 encoded hash of 32B
+(i.e. ``32 * l(235) / l(58) = ~44 char.``).
+
+<textarea id=json></textarea>
+
+Here is the list all the blocks in the chain
+
+<div id=list></div>
+
+See also [HEADs][1]
+
+<script src="chain.js"></script>
+
+[1]: /docs/heads.html
+
+
--- a/docs/difficulties.md
+++ b/docs/difficulties.md
@ -0,0 +1,23 @@
+---
+layout: simple
+---
+# block difficulties
+
+we use [hashcash][1] as a mechanism to protect the blockchain from a Sybil Attack.
+
+The difficulty is the number of hexadecimal digit we have to "resolve" in the block hash.
+
+Finding a block hash than match the required difficuly is the "work"
+and the hash itself is the [*proof of work*][1].
+
+example: block [Z9Pa9kcag3TBc6EX671u6Zwk7N6M7jTuQ5HPtjzDrpx4f][2] has is matching a difficulty of 4
+
+
+
+
+
+
+
+
+[1]: /docs/pow.html
+[2]: /api/0.0/getblock?hash=Z9Pa9kcag3TBc6EX671u6Zwk7N6M7jTuQ5HPtjzDrpx4f
--- a/docs/explorer.md
+++ b/docs/explorer.md
@ -0,0 +1,27 @@
+---
+layout: simple
+---
+# Toy Chain Explorer
+
+The API server has an [explore][1] endpoint that allows to view all of the chain's "[internals][2]"
+
+You can explore the chain, blocks, transaction and more ...
+
+- get the [HEADs][3] 
+- get the [chain][4] 
+- get a [block][5]
+- get the [txpool][6]
+- get the [utxo][7] state
+- get a [transaction][8]
+- get [nodes][9] 
+
+[1]: /api/explore.html
+[2]: /docs/internals.html
+
+[3]: /docs/heads.html
+[4]: /docs/chain.html
+[5]: /docs/block.html
+[6]: /docs/txpool.html
+[7]: /docs/utxo.html
+[8]: /docs/transactions.html
+[9]: /docs/nodes.html
--- a/docs/genesis.js
+++ b/docs/genesis.js
@ -0,0 +1,57 @@
+const useCapture = false; // capture, bubbling: false
+
+button = document.getElementsByTagName('button')[0];
+button.addEventListener('click',genesis,false);
+console.log(button)
+var payload = 'QmVnvdASdT1c9fJ2mcDhTAYhb63gcFRkiRmJW7NAm1YcSf';
+//var txcoinhash = 'ZCBtx7Wg59hvMogWDchKVcGUMo68qDe2dkRfzaskAh3G';
+//var prevhash = 'Z9BEeWD4Mww7yrXyPRXrfM2y6FxsQGfaNPzC8DxWq4ATq';
+var pow = '11501558695957493006';
+var comment = 'Genesis ~ Manuela J. Savina';
+
+// get default values (from nodes) ...
+let promised_config = fetch(api_url + 'config').
+  then(resp => resp.json()).
+  then(obj => { return obj.config }).
+  catch(console.error)
+
+let promised_nullhash = fetch(api_url + 'getjson?obj=Genesis::nullhash').
+  then(resp => resp.json()).
+  then(obj => { console.log('promised_nullhash.obj:',obj)
+    return obj;
+  }).
+  catch(console.error);
+
+Promise.all([promised_config, promised_nullhash]).then( _ => {
+  let [config,nullhash] = _;
+  console.log('genesis.config:',config);
+  document.getElementsByName('payload')[0].value = payload;
+  document.getElementsByName('txcoinhash')[0].value = config.txcoin;
+  document.getElementsByName('prevhash')[0].value = nullhash;
+  document.getElementsByName('pow')[0].value = pow;
+  document.getElementsByName('comment')[0].value = comment;
+}).catch(console.error);
+
+
+function genesis(ev) {
+  console.log('genesis.ev: %o',ev);
+  let query = {
+    "payload": document.getElementsByName('payload')[0].value,
+    "txcoin": document.getElementsByName('txcoinhash')[0].value,
+    "bkprev": document.getElementsByName('prevhash')[0].value,
+    "pow": document.getElementsByName('pow')[0].value,
+    "comment": document.getElementsByName('comment')[0].value
+  };
+  query_string = Object.keys(query).map( k => k +'='+ query[k] ).join('&');
+  let url = api_url + `creategen?${query_string}`;
+  document.getElementByName('pow')[0].value = 'working...';
+  let promised = fetch(url).
+  then(resp => resp.json()).
+  then(obj => {
+    console.log('genesis.obj:',obj);
+    document.getElementsByName('pow')[0].value = obj.pow;
+  }).
+  catch(console.error);
+}
+
+
--- a/docs/genesis.md
+++ b/docs/genesis.md
@ -0,0 +1,27 @@
+---
+layout: simple
+---
+# ToyChain Genesis Block
+
+The genesis block is a regular block with
+only one [coinbase][1] transaction
+and a previous link that point to the [NullBlock][3]
+
+
+A block is consist of the following part :
+
+1. a payload <input name=payload>
+2. a [coinbase][2] transaction <input name=txcoinhash>
+<!--2. a transactions list (merkle tree) <input name=txpool disabled> -->
+3. a link to the previous block <input name=prevhash disabled>
+4. a proof of work <input name=pow>
+5. an optional comment <input name=comment>
+
+<button>create</button>
+
+
+[1]: /docs/coinbase.html
+[2]: /api/v0.0/getyml?f=templ/txcoin.yml&encode=json
+[3]: /api/v0.0/getcas?addr=nullblock&dir=templ
+
+<script src="genesis.js"></script>
--- a/docs/heads.js
+++ b/docs/heads.js
@ -0,0 +1,74 @@
+
+
+getheads();
+function getheads() {
+  let promised = fetch(api_url + 'getheads').
+  then(resp => resp.json()).
+  then(obj => {
+    let elem = document.getElementById('json');
+    elem.innerText = JSON.stringify(obj);
+
+    let list = '<ul>';
+    for (let b of obj.HEADs) {
+      console.log('getheads.b:',b);
+      let blk_url = api_url + `getblock?hash=${b.bkhash}`;
+      let content_url = api_url + `getblock?addr=${b.bkaddr}`;
+      let peerid = b.bkcontent.audit.peerid;
+      let whois_url = api_url + `whois?pub=${peerid}`
+      list += `<li><a href="${blk_url}">${b.bkhash}</a> by <a href="${whois_url}">${peerid}</a>: `+
+              `<a href="${content_url}">${b.bkaddr}</a> ${b.bkprev} pow:${b.pow}</li>`;
+    }
+    list += '</ul>';
+    elem = document.getElementById('list');
+    elem.innerHTML = list;
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+
+// ----------------------------------------------------
+
+async function getnodes() {
+  let config = await fetch(api_url + 'config').
+  then(resp => resp.json()).
+  then(obj => { return obj.config }).
+  catch(console.error);  
+  console.log('nodes.config:',config);
+
+  let n = 1;
+  let list = '<ul>';
+  let nodes = [];
+  for (node of config.nodes) {
+    console.log('nodes.node:',node);
+    let [ip,port] = node.split(':');
+    let info = await get_info(node);
+    nodes.push(info);
+    let url=`http://${node}`;
+    let status='offline';
+    let info_url = `${url}${api_url}getinfo`;
+    list += `<li>node${n} (:${port}) <a href="${url}">${node}</a> ${status} <a href="${info_url}">information</a></li>\n`;
+    console.log('nodes.info:',info);
+    n++;
+  }
+  list += '</ul>';
+  let elem = document.getElementById('list');
+  elem.innerHTML = list;
+  return nodes;
+}
+function get_info(node) {
+ let [ip,port] = node.split(':');
+ let remote_api_url = `http://${node}${api_url}`;
+ let promised = fetch(remote_api_url + 'getinfo').
+    then(resp => resp.json).
+    then(obj => { let info = obj.info; return info; }).
+    catch(console.error);
+ return promised;
+}
+
+
+
+console.log('heads.js loaded');
--- a/docs/heads.md
+++ b/docs/heads.md
@ -0,0 +1,23 @@
+---
+layout: simple
+---
+# ToyChain's HEADs
+
+The ToyChain blockchain as many as head as there are nodes that holds differents forks.
+
+<textarea id=json></textarea>
+
+Here is the list with their respective owners 
+
+<div id=list></div>
+
+
+
+<script src="heads.js"></script>
+
+
+
+
+
+
+
--- a/docs/index.md
+++ b/docs/index.md
@ -3,6 +3,7 @@ layout: simple
 ---
 # Toy Chain ...

+- [information][11]
 - [settings][6]
 - [explorer][2]
 - [web-service][7]
@ -12,7 +13,7 @@ layout: simple
 - [README][3]
 - [genesis][8]
 - [transactions][9]
- [API][1]
+- [API][1] ([status][10])
 - [notes][5]

 ### Installation
@ -28,4 +29,6 @@ layout: simple
 [7]: /webservice.html
 [8]: /docs/genesis.html
 [9]: /docs/transactions.html
+[10]: /docs/status.html
+[11]: /docs/info.html

--- a/docs/info.js
+++ b/docs/info.js
@ -0,0 +1,44 @@
+
+// getting node information ...
+
+info();
+function info() {
+  let promised = fetch(api_url + 'getinfo').
+  then(resp => resp.json()).
+  then(obj => {
+    document.getElementById('json').innerText = JSON.stringify(obj.info);
+
+    let p = document.getElementsByTagName('p')[0];
+    let buf = p.innerHTML;
+    buf = buf.replace(':nodeid',obj.info.nodeid);
+    buf = buf.replace(':port',obj.info.port);
+    buf = buf.replace(':botname',obj.info.botname);
+    buf = buf.replace(':owner',obj.info.owner);
+    buf = buf.replace(':peerid',obj.info.peerid);
+    buf = buf.replace(':height',obj.info.height);
+    buf = buf.replace(/:head/g,obj.info.head);
+    buf = buf.replace(/:genesis/g,obj.info.genesis);
+
+    p.innerHTML = buf;
+
+    if (typeof(obj.api) != 'undefined') {
+      let list = '<ol>';
+      for (let item of obj.api) {
+        console.log('test.item:',item);
+        let url = api_url + `getcas?addr=${item}`;
+        list += `<li><a href="${url}">${item}</a></li>\n`
+      }
+      list += '</ol>';
+      document.getElementById('list').innerHTML = list;
+    }
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+// ----------------------------------------------------
+console.log('info.js loaded');
+
--- a/docs/info.md
+++ b/docs/info.md
@ -0,0 +1,29 @@
+---
+layout: simple
+---
+# Nodes' Information
+
+<p>
+nodeid: :nodeid 
+<br>port: :port 
+<br>botname: :botname
+<br>owner: :owner
+<br>peerid: :peerid
+<br>
+<br>block height: :height
+<br>head bkhash: <a href="/api/v0.0/getblock?hash=:head">:head</a>
+<br>genesis bkhash: <a href="/api/v0.0/getblock?hash=:genesis">:genesis</a>
+</p>
+
+
+<textarea id=json></textarea>
+([json](/api/0.0/getjson?obj=result))
+
+<div id=list></div>
+
+<a href="/docs/"><button id=docs>documentation</button></a>
+
+<script src="info.js"></script>
+
+
+
--- a/docs/minepool.js
+++ b/docs/minepool.js
@ -0,0 +1,30 @@
+
+
+minepool();
+function minepool() {
+  let promised = fetch(api_url + 'minepool').
+  then(resp => resp.json()).
+  then(obj => {
+    document.getElementById('json').innerText = JSON.stringify(obj);
+
+    if (typeof(obj.txpool) != 'undefined') {
+      let list = '<ol>';
+      for (let txa of obj.txpool) {
+        console.log('getpool.bh:',txa);
+        let tx_url = api_url + `gettx?addr=${txa}`;
+        list += `<li><a href="${tx_url}">${txa}</a></li>\n`
+      }
+      list += '</ol>';
+      document.getElementById('list').innerHTML = list;
+    }
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+// ----------------------------------------------------
+console.log('txpool.js loaded');
+
--- a/docs/minepool.md
+++ b/docs/minepool.md
@ -0,0 +1,30 @@
+---
+layout: simple
+---
+# ToyChain's Mining
+
+The ToyChain Mining is the action of
+
+- creating a new block to record transaction in the [txpool](txpool.html)
+- attaching the block to the [HEAD](heads.html) of the chain.
+- computing the hash of this block with enough [PoW](pow.html)
+- advertizing the new head of the chain
+
+height: <span id=height></span>
+HEAD: <span id=head></span>
+new block: <span id=new></span>
+
+
+<textarea id=json></textarea>
+([json][1])
+
+<div id=list></div>
+
+<a href="/docs/chain.html"><button id=chain>chain view</button></a>
+
+
+<script src="minepool.js"></script>
+
+
+[1]: /api/0.0/getjson?obj=result
+
--- a/docs/mining.md
+++ b/docs/mining.md
@ -0,0 +1,24 @@
+---
+layout: simple
+---
+# ToyChain's Mining
+
+The ToyChain Mining is the action of
+
+- creating a new block to record transaction in the [txpool](txpool.html)
+- attaching the block to the [HEAD](heads.html) of the chain.
+- computing the hash of this block with enough [PoW](pow.html)
+- advertizing the new head of the chain
+
+
+<textarea id=json></textarea>
+
+<div id=list></div>
+
+<a href="/docs/chain.html"><button id=chain>chain view</button></a>
+
+
+<script src="mining.js"></script>
+
+
+
--- a/docs/nodes.js
+++ b/docs/nodes.js
@ -0,0 +1,30 @@
+
+
+getnodes();
+function getnodes() {
+  let promised = fetch(api_url + 'getnodes').
+  then(resp => resp.json()).
+  then(obj => {
+    document.getElementById('json').innerText = JSON.stringify(obj.api);
+
+    if (typeof(obj.api) != 'undefined') {
+      let list = '<ol>';
+      for (let node of obj.api) {
+        console.log('getnodes.node:',node);
+        let url = `http:/${node}/docs/chain.html`
+        list += `<li><a href="${url}">${node}</a></li>\n`
+      }
+      list += '</ol>';
+      document.getElementById('list').innerHTML = list;
+    }
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+// ----------------------------------------------------
+console.log('nodes.js loaded');
+
--- a/docs/nodes.md
+++ b/docs/nodes.md
@ -0,0 +1,21 @@
+---
+layout: simple
+---
+# ToyChain Nodes
+
+getting nodes list : fixed network here (no discovery).
+
+<textarea id=json></textarea>
+
+<div id=list></div>
+&gt; <a href="javascript:location.href=location.origin+'/docs/chain.html';">this node</a>
+
+
+### API commands
+
+- [/api/v0.0/getnodes](/api/v0.0/getnodes)
+
+<script src="nodes.js"></script>
+
+<a href="/docs/"><button id=docs>documentation</button></a>
+
--- a/docs/notes.md
+++ b/docs/notes.md
@ -7,7 +7,7 @@ base: '../'

 ## Initial design choices

- protocol/routing/network layer: websockets (multi nonblocking clients)
+- note that serialization with JSON doesn't guarante key's order when using maps, so for CAS storage yaml is prefered
 - server-side fileformat : yaml
 - client-side fileformat : JSON

@ -22,6 +22,15 @@ base: '../'
  - block: {address, previous, pow}
  - use balances for state rather than TXO to avoid the need keep txo states, and link txi to utxo

+## Networking layer choise
+
+ initally we thought websocket would be the simple choice for the P2P network,
+ however the protocol implementation in perl is a little cumbersome, so we fall back
+ to simple tcp sockets, no ssl support for the first version !
+- blocking socket
+
+ next version :
+- protocol/routing/network layer: websockets (multi nonblocking clients)

 ## observation ...

@ -53,9 +62,12 @@ base: '../'
 -  PoW can be replaced by ZK proof of some Work
 -  should it be txo which carries the burden of proof of work ?
 -  validator already do a great job making the system "alive" 
-  block reward could be proportional to the number of tx in the block i.e. the "real" work is indeed the verif not a hash-puzzle
-
+-  block reward could be proportional to the number of tx in the block
+   i.e. the "real" work is indeed the verif not a hash-puzzle.
 -  How to mitigate  DDoS on Mempool ?
-
-  why would we want making block more and more difficult to add when technology advance ???
+   why would we want making block more and more difficult to add when technology advance ???
   (how to make spice of spamming constant through technology ?)
+
+### misc &amp; links
+
+- testing javascript with a [gist:42835214f63750080a8cb73d4be5a4a1](https://hologit-ml.ipns.cf-ipfs.com/tstanchfield/code.git)
--- a/docs/pow.js
+++ b/docs/pow.js
@ -1,4 +1,4 @@
-const useCapture = true; // capture, bubbling: false
+const useCapture = false; // capture, bubbling: false

 button = document.getElementsByTagName('button')[0];
 button.addEventListener('click',hashcash,false);
@ -18,7 +18,7 @@ function hashcash(ev) {
  then(obj => {
    console.log('pow.hashcash.obj:',obj);
    document.getElementsByName('hashcash')[0].innerText = '0x'+obj.hash;
-    document.getElementsId('pow').innerText = obj.pow;
+    document.getElementById('pow').innerText = obj.pow;

  }).
  catch(console.error);
--- a/docs/status.md
+++ b/docs/status.md
@ -0,0 +1,27 @@
+---
+layout: simple
+---
+# API implementation status ...
+
+### currently available
+
+- [heads](/docs/heads.html)
+- [chain](/docs/chain.html)
+- [block](/docs/block.html)
+- [transaction](/docs/transactions.html)
+- [txpool](/docs/txpool.html)
+
+### api commands 
+
+- [utxo](/api/utxo.html)
+- [gettx](/api/gettx.html)
+- [settx](/api/settx.html)
+
+
+### coming soon 
+
+- [UTXO](/docs/UTXO.html)
+- [explore](/api/explore.html)
+- [internals](/docs/internals.html)
+- [register](/admin/register.html)
+- [genesis](/docs/genesis.html)
--- a/docs/test.js
+++ b/docs/test.js
@ -0,0 +1,30 @@
+
+
+testing();
+function testing() {
+  let promised = fetch(api_url + 'getnodes').
+  then(resp => resp.json()).
+  then(obj => {
+    document.getElementById('json').innerText = JSON.stringify(obj.api);
+
+    if (typeof(obj.api) != 'undefined') {
+      let list = '<ol>';
+      for (let item of obj.api) {
+        console.log('test.item:',item);
+        let url = api_url + `getcas?addr=${item}`;
+        list += `<li><a href="${url}">${item}</a></li>\n`
+      }
+      list += '</ol>';
+      document.getElementById('list').innerHTML = list;
+    }
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+// ----------------------------------------------------
+console.log('txpool.js loaded');
+
--- a/docs/test.md
+++ b/docs/test.md
@ -0,0 +1,42 @@
+---
+layout: simple
+---
+# Testing the ToyChain
+
+testing the API ...
+
+### internals
+
+- [getnodes](/api/v0.0/getnodes)
+- [chain](/api/v0.0/getjson?obj=toychain::chain)
+- [TXPOOL](/api/v0.0/getjson?obj=TXPOOL::TXPOOL)
+- [UTXO](/api/v0.0/getjson?obj=TXPOOL::UTXO)
+- [getregs](/api/v0.0/getjson?obj=registration)
+- [getruntime](/api/v0.0/getjson?obj=runtime)
+- [txcoin](/api/v0.0/getjson?obj=Genesis::txcoin)
+- [getnick](/api/v0.0/getjson?obj=nicknames)
+- [getkeys](/api/v0.0/getjson?obj=keys)
+
+### source :
+
+- [config](/lib/config.pm)
+- [toychain](/lib/toychain.pm)
+- [Chain](/lib/Chain.pm)
+- [ECKeys](/lib/ECKeys.pm)
+- [Genesis](/lib/Genesis.pm)
+- [API](/lib/API.pm)
+
+
+### nodes :
+
+<div id=list></div>
+
+<textarea id=json></textarea>
+
+<a href="/docs/"><button id=docs>documentation</button></a>
+
+
+<script src="test.js"></script>
+
+
+
--- a/docs/transactions.js
+++ b/docs/transactions.js
@ -0,0 +1,51 @@
+
+let button = document.getElementsByTagName('button')[0];
+button.addEventListener('click',gettx,false);
+
+
+function gettx() {
+
+  let addr = document.getElementsByName('addr')[0].value;
+  let url = api_url + 'gettx?addr=' + addr;
+  document.getElementById('url').innerHTML = `<a href=${url}>${url}</a>`;
+
+  let promised = fetch(url).
+  then(resp => resp.json()).
+  then(obj => {
+    let elem = document.getElementById('json');
+    elem.innerText = JSON.stringify(obj.tx);
+
+    console.log('obj.tx',obj.tx);
+    document.getElementById('txroot').innerText = obj.tx.txroot
+    document.getElementById('pow').innerText = obj.tx.pow
+
+    let list = ''
+    for (let i of obj.tx.inputs) {
+      public = Object.keys(i)[0];
+      list += `<li>${public} ${i[public]}</li>`;
+    }
+    document.getElementById('in').innerHTML = list;
+    list = ''
+    for (let o of obj.tx.outputs) {
+      public = Object.keys(o)[0];
+      list += `<li>${public} ${o[public]}</li>`;
+    }
+    document.getElementById('out').innerHTML = list;
+    list = ''
+    for (let s of obj.tx.signatures) {
+      public = Object.keys(s)[0];
+      list += `<li>${public} ${s[public][0]}</li>`;
+    }
+    document.getElementById('sig').innerHTML = list;
+
+    document.getElementById('yaml').innerText = obj.yaml;
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj.tx; });
+
+}
+
+
+// ----------------------------------------------------
+console.log('transactions.js loaded');
--- a/docs/transactions.md
+++ b/docs/transactions.md
@ -0,0 +1,46 @@
+---
+layout: simple
+---
+# Transactions
+
+
+There are two types:
+
+1.  mempool transactions : pending validation
+2.  block transactions : confirmed transactions (organized in merkle tree)
+
+You can create a [transaction][1] using the [settx][2] [API][3] call.
+
+You can view transactions with the address :
+
+addr: <input name=addr size=38 value="ZtxZojTad7bmjVKH67eeRGeaEKkTNQtEdiTxEMKFXGbC">
+<button>view</button>
+
+<textarea id=json></textarea>
+
+txroot: <span id=txroot></span>
+<br>pow: <span id=pow></span>
+<br>url: <span id=url></span>
+
+### inputs 
+
+<ol id=in></ol>
+
+### outputs
+
+<ol id=out></ol>
+
+### signatures
+
+<ol id=sig></ol>
+
+----
+
+<pre id=yaml></pre>
+
+
+[1]: /api/transaction.html
+[2]: /api/settx.html
+[3]: /api/
+
+<script src="transactions.js"></script>
--- a/docs/txpool.js
+++ b/docs/txpool.js
@ -0,0 +1,28 @@
+
+
+getpool();
+function getpool() {
+  let promised = fetch(api_url + 'getpool').
+  then(resp => resp.json()).
+  then(obj => {
+    document.getElementById('json').innerText = JSON.stringify(obj);
+
+    let list = '<ol>';
+    for (let txa of obj.txpool) {
+      console.log('getpool.bh:',txa);
+      let tx_url = api_url + `gettx?addr=${txa}`;
+      list += `<li><a href="${tx_url}">${txa}</a></li>\n`
+    }
+    list += '</ol>';
+    document.getElementById('list').innerHTML = list;
+
+    return obj;
+  }).
+  catch(console.error);  
+  promised.then(obj => { console.log('obj:',obj); return obj; });
+
+}
+
+// ----------------------------------------------------
+console.log('txpool.js loaded');
+
--- a/docs/txpool.md
+++ b/docs/txpool.md
@ -0,0 +1,21 @@
+---
+layout: simple
+---
+# ToyChain's TxPool View
+
+The ToyChain [TxPool][1] is a list of pending transactions
+
+<textarea id=json></textarea>
+
+Here is the list all the transactions in the pool
+
+<div id=list></div>
+
+<a href="/docs/minepool.html"><button id=minepool>minepool</button></a>
+
+
+<script src="txpool.js"></script>
+
+[1]: /api/v0.0/getjson?obj=TXPOOL::TXPOOL
+
+
--- a/eckeygen.pl
+++ b/eckeygen.pl
@ -1,32 +0,0 @@
-#!/usr/bin/perl
-#
-# testing out ecdsa key generation ...
-
-use Crypt::PK::ECC;
-use YAML::Syck qw(Dump);
-
-#Key generation
-my $pk = Crypt::PK::ECC->new();
-$pk->generate_key('secp256k1');
-my $private_der = $pk->export_key_der('private');
-
-my $public_pem = $pk->export_key_pem('public');
-
-local *PK;
-open PK,'>','eckey-priv.der'; binmode(PK);
-print PK $private_der;
-close
-open PK,'>','eckey-pub.pem';
-print PK $public_pem;
-close PK;
-
-open PK,'>','eckey.yml';
-print PK "--- # eckey\n";
-printf PK "pk: %s\n",Dump($pk->key2hash);
-printf PK "...\n";
-close PK;
-
-
-exit $?;
-
-1; # $Source: /my/perl/script/eckeygen.pl $
--- a/2
+++ b/2
@ -1 +1 @@
-Subproject commit d4bea95cde2025454813231b121ffffa846eee0a
+Subproject commit d1fd3ef3a87ec1bd14c33ef19e106c86fde4e78f
--- a/nodes/cloneit.sh
+++ b/nodes/cloneit.sh
@ -10,14 +10,14 @@ if [ -d ../lib ]; then
 else
  git clone --recursive git@git.toptal.com:screening/Michel-Combes node$i
 fi
-port=$(expr 8089 + 2 \* $i )
-echo "node$i: port=$port"
-rm node$i/config.yml
-sed -e "s/port: .*/port: $port/" node$i/config0.yml > node$i/config.yml
-
 cd node$i
 gpg --decrypt local.key.asc | git-crypt unlock -

+port=$(expr 8089 + 2 \* $i )
+echo "node$i: port=$port"
+rm config.yml
+sed -e "s/port: .*/port: $port/" templ/config.yml > config.yml
+
 exit $?;

 true;
--- a/salts/Genesis.yml
+++ b/salts/Genesis.yml
@ -1 +1 @@
-salt: 8163726777753892901
+salt: 8163726777754382880
--- a/secrets/keys.yml
+++ b/secrets/keys.yml
--- a/secrets/nicknames.yml
+++ b/secrets/nicknames.yml
--- a/t/blockaddr.t
+++ b/t/blockaddr.t
@ -13,12 +13,15 @@ BEGIN { if (-e $ENV{SITE}.'/lib') { use lib $ENV{SITE}.'/lib'; } }

 #use if -e $LIB, $LIB.'/seed';
 use seed qw(rand64);
-use toychain qw(blockHash displayBlock);
+use functions qw(displayBlock);
+use toychain qw(blockHash);
 use YAML::Syck qw(Dump);
 print "// testing blockaddr\n";
 printf "chain.hash %s\n",$toychain::chain->[-1];
 printf "head.addr %s\n",$toychain::HEADs[0]->{bkaddr};

+my $block0 = $toychain::HEADs[0];
+

 # f96885aa : 21.4min
 # 044ce1de : 20.5min
@ -28,10 +31,10 @@ my $n0 = rand64(); # n < 18446744073709551616
 printf "n0:%s\n",$n0;
 }

-displayBlock($toychain::genesis);
+displayBlock($block0);

-my $hash = &blockHash($toychain::genesis);
-printf "genesis.hash %s\n",$hash;
+my $hash = &blockHash($block0);
+printf "head.hash %s\n",$hash;
 print ".\n";

 exit $?;
--- a/t/createtx.t
+++ b/t/createtx.t
@ -6,7 +6,7 @@ use TXPOOL qw($TXPOOL $UTXO createTx isTxValid addTxPool);
 use CAStore qw(CASRead);
 use YAML::Syck qw(Dump);
 printf "--- keys %s...\n",Dump($ECKeys::keys);
-printf "--- aliases %s...\n",Dump($ECKeys::aliases);
+printf "--- nicknames %s...\n",Dump($ECKeys::nicknames);

 $UTXO->{$ECKeys::keys->{faucet}{public}} = 1;
 printf "--- UTXO %s...\n",Dump($UTXO);
@ -25,11 +25,13 @@ printf "is %s valid: ? %s\n",$txaddr,$txok;
 if ($txok) {
  &addTxPool($txaddr);
 }
+# --------------------------------------------
 print "TxPool:\n";
 for my $i (0 .. $#$TXPOOL) {
   printf " %d. %s\n",$i,$TXPOOL->[$i];
 }
-print ".]n";
+print ".\n";
+# --------------------------------------------

 #my $txp = &CASRead($ENV{SITE}.'/txpool',$txaddr);
 #printf "--- txp %s...\n",Dump($txp);
--- a/t/eckeys.t
+++ b/t/eckeys.t
--- a/t/genesis.t
+++ b/t/genesis.t
@ -2,9 +2,9 @@

 BEGIN { if (-e $ENV{SITE}.'/lib') { use lib $ENV{SITE}.'/lib'; } }

-use Genesis;
 use functions qw(displayBlock);
 use DAG qw(DAGRead);
+use Genesis;


 my $genblock = $Genesis::genblock;
--- a/t/hashcash.t
+++ b/t/hashcash.t
@ -27,7 +27,8 @@ printf "n0:%s\n",$n0;

 #my ($hc,$n) = &hashcash('SHA256','some data',12131054599640746025,6);
 #my ($hc,$n) = &hashcash('SHA256','some data',12131054600136590019,8);
-my ($hc,$n) = &hashcash('SHA256','some data',12131054604673102375,9);
+#my ($hc,$n) = &hashcash('SHA256','some data',12131054702324971967,9);
+my ($hc,$n) = &hashcash('SHA256','some data',12131054800000000000,6);
 printf "hc: %s %s %s\n",unpack('H*',$hc),$n,unpack'H*',pack('Q',$n);

 #($hc,$n) = &hashcash('SHA256','hello world',$n0,5);
--- a/templ/config.yml
+++ b/templ/config.yml
@ -1,8 +1,7 @@
 --- # toychain's config
-version: 1.06
+version: 1.13
 chain: toychain
 apiver: '0.0'
-ipfsgw: 8390
 port: 8089

 # p2p network = api+1
@ -21,3 +20,7 @@ difficulty: 5
 maxdiff: 7
 # CAstore options
 trackmode: 1
+
+
+# misc.
+ipfsgw: 8390
--- a/templ/genesis.yml
+++ b/templ/genesis.yml
@ -10,6 +10,7 @@ meta:
 txroot: ~
 audit:
 peerid: Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq
+ nodeid: ~
 tics: 1623830817245864895
 ip: 83.78.4.228
 prev: ZdtrjkYsAYUeBCs4DRjtVYwPevpxvHjGT2PRauANr3Vao
--- a/templ/runtest.sh
+++ b/templ/runtest.sh
@ -0,0 +1,14 @@
+
+
+set -e
+for f in tx*.yml; do
+echo f: $f
+#cat $f | sed -e "s/$/%0a/g" | curl -s -X POST http://127.0.0.1:8089/api/0.0/istxvalid -d @-
+cat $f | json_xs -f yaml | grep -v 'null' | curl -s -X POST http://127.0.0.1:8089/api/0.0/settx -d @-
+echo ''
+done
+for f in tx*.json; do
+cat $f | curl -s -X POST http://127.0.0.1:8089/api/0.0/settx -d @-
+echo ''
+done
+
--- a/templ/runtime.yml
+++ b/templ/runtime.yml
@ -0,0 +1,17 @@
+--- # toychain's runtime state
+
+# cashash mode
+trackmode: 1
+# verification node
+skip_balance_check: 1
+
+# special blocks:
+genhash: ~
+nullhash: ~
+
+# transactions:
+txgen: ~
+txcoin: ~
+
+# misc.
+ipfsgw: 8390
--- a/templ/salt.yml
+++ b/templ/salt.yml
@ -0,0 +1 @@
+salt: 3029492618445148610
--- a/templ/tx.yml
+++ b/templ/tx.yml
@ -0,0 +1,20 @@
+--- 
+inputs: 
+  - 
+    Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 11
+outputs: 
+  - 
+    ZF2egd6zrw6EcLJt5TmKPzjMSMpyVmkRCKKehLaaakZEU: 7
+  - 
+    ZCCWdhnf5aQ3oFMt6JxULAjmCNkB8DNaLpB3Fzcc6V3PN: 1
+  - 
+    Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 3
+payload: This is an example of transaction
+signatures: 
+  - 
+    Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq:
+      - Zan1RjNCSDtQtvuBVNvwvNKwWDwN9tPRGFbmmRoJQFeophTFHq6cAsvskowPgHpKWR1LUc5usEwqRLyxcGLzYYc91k8VENiT4H
+  - 
+    ZCCWdhnf5aQ3oFMt6JxULAjmCNkB8DNaLpB3Fzcc6V3PN:
+      - Z381YwxTinKz9QgQQzbRSfi4C9B9GTHJhv6TPiq5qeffrLneeST9QtNeueMXsUVzXmA1jTycJAti5D5YdZRojx7kTDRVv1WoD
+timestamp: '1623683269225552702'
--- a/templ/tx02.json
+++ b/templ/tx02.json
@ -0,0 +1 @@
+{"signatures":[{"michelc":["ZHjX1cinn46FbTioY43qo2ZmfgnjZzXKRMiVN3tZRbxkzg61hNdKRoGptqeFa2tT5kzHqrSUTNcHFTfsLYSz5eDRGXmL3wzc1Gt","2021-06-14 19.54.28","[michelc,0,a]"]},{"anonymous":["ZHjX1cin92axvE1YtoPZyakN1HSFZmXpFxqSVqaWz1S3eyVA5rxTohXUcjcR5sPG9apfTEy34dSUyMPPuN2ngQNDMEFrEgZqbMN","2021-06-14 19.54.28","[anonymous,0,a]"]}],"inputs":[{"ZX3hz85Vayc3Nhfs43ADhTeJXkDJ3fnXtfRiDW4pQzYRQ":"6"}],"nonce":"3976914969180171529","pow":"3976914969180292365","timestamp":"1623693268225555737","outputs":[{"Z24zaLMH6SCfAoC8ndS9XunjrkVpZW5tprhrZdSq3CcXWQ":"3"},{"Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq":"2"}],"message":"This is an other example for transaction"}
--- a/templ/tx02.yml
+++ b/templ/tx02.yml
@ -0,0 +1,23 @@
+--- 
+message: This is an other example for transaction
+inputs: 
+  - ZX3hz85Vayc3Nhfs43ADhTeJXkDJ3fnXtfRiDW4pQzYRQ: 3
+nonce: '3976914969180171529'
+outputs: 
+  - 
+    Z24zaLMH6SCfAoC8ndS9XunjrkVpZW5tprhrZdSq3CcXWQ: 3
+  - 
+    Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 2
+pow: '3976914969180292365'
+signatures: 
+  - 
+    michelc: 
+      - ZHjX1cinn46FbTioY43qo2ZmfgnjZzXKRMiVN3tZRbxkzg61hNdKRoGptqeFa2tT5kzHqrSUTNcHFTfsLYSz5eDRGXmL3wzc1Gt
+      - 2021-06-14 19.54.28
+      - "[michelc,0,a]"
+  - 
+    anonymous: 
+      - ZHjX1cin92axvE1YtoPZyakN1HSFZmXpFxqSVqaWz1S3eyVA5rxTohXUcjcR5sPG9apfTEy34dSUyMPPuN2ngQNDMEFrEgZqbMN
+      - 2021-06-14 19.54.28
+      - "[anonymous,0,a]"
+timestamp: '1623693268225555737'
--- a/templ/tx03.json
+++ b/templ/tx03.json
@ -0,0 +1,35 @@
+{
+   "inputs" : [
+      {
+         "ZX3hz85Vayc3Nhfs43ADhTeJXkDJ3fnXtfRiDW4pQzYRQ" : "5"
+      }
+   ],
+   "message" : "This is an other example for transaction",
+   "nonce" : "3976914969180171529",
+   "outputs" : [
+      {
+         "Z24zaLMH6SCfAoC8ndS9XunjrkVpZW5tprhrZdSq3CcXWQ" : "3"
+      },
+      {
+         "Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq" : "2"
+      }
+   ],
+   "pow" : "3976914969180292365",
+   "signatures" : [
+      {
+         "michelc" : [
+            "ZHjX1cinn46FbTioY43qo2ZmfgnjZzXKRMiVN3tZRbxkzg61hNdKRoGptqeFa2tT5kzHqrSUTNcHFTfsLYSz5eDRGXmL3wzc1Gt",
+            "2021-06-14 19.54.28",
+            "[michelc,0,a]"
+         ]
+      },
+      {
+         "anonymous" : [
+            "ZHjX1cin92axvE1YtoPZyakN1HSFZmXpFxqSVqaWz1S3eyVA5rxTohXUcjcR5sPG9apfTEy34dSUyMPPuN2ngQNDMEFrEgZqbMN",
+            "2021-06-14 19.54.28",
+            "[anonymous,0,a]"
+         ]
+      }
+   ],
+   "timestamp" : "1623693268225555737"
+}
--- a/templ/txcb01.yml
+++ b/templ/txcb01.yml
@ -0,0 +1,17 @@
+--- 
+message: approved 100 coins transaction for blocks mined by Florence M. Buzick for Luke S. Didyk
+timestamp: '1626168575783464960'
+inputs: 
+  - coinbase: 100
+nonce: '7717044746294770303'
+outputs: 
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 100
+  - miner: 0
+pow: '7717044746294792842'
+signatures: 
+  - coinbase: 
+      - Zan1RjQUyrJ3JizN1nERKLNWukKB11QMuFEEV6LrdQtYLPncesNz26jdgp1WfM5Ky2DTgJZHwVpFkem39Z846F2rjKwwcMRC4h
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 
+      - Z381YwxUem1mcUiuBAuXevAJ8zaWhHRL9uCsx1Qix21gbSSpszfnwF1qVCxsPCHj7HPeLetVpKJaok3UH3gQ72AEXfTbmqcEW
+  - miner: 
+      - ZHjX1cinqAEpNp7wUuX6P2jXWzZFRGQvuCtG78bVRv6w3hrXU2xihQKBDnniee4yA5sRzbxUZgqnzvzQfJsUQCzUf7T9xUDisF6
--- a/templ/txcoin.yml.sig
+++ b/templ/txcoin.yml.sig
@ -1,11 +1,16 @@
 --- 
-message: This is a coinbase transaction of 100 coins to be distributed to Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq
 inputs: 
-  - coinbase: 100
-outputs: 
-  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 100
-timestamp: '1625385951347499858'
+  - 
+    coinbase: 100
+message: This is a coinbase transaction of 100 coins to be distributed to Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq
 nonce: '3976914969180171529'
+outputs: 
+  - 
+    Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 100
 pow: '3976914969180292365'
 signatures: 
-  - coinbase: ~
+  - 
+    coinbase: 
+      - Z381YwyamFBjdvLNZCUcfoTqNQpxBzCznG9yaYsdFSztN4z9ZEyGDvpjnY33nq91WdjYk6zMuuUDdtvw5nxo6MYKVHcxPYGMJ
+      - 2021-07-07 22.49.00
+timestamp: '1625385951347499858'
--- a/templ/txexample.yml
+++ b/templ/txexample.yml
@ -1,9 +1,9 @@
--- 
-message: This is an exemple of transaction with 3 coins going to Trina M. and 2 coins to Michel C.
+--- # Example of Transaction of the ToyChain
+message: This is an example of transaction with 3 coins going to Trina M. and 2 coins to Michel C.
 timestamp: '1623693268225555737'
 nonce: '3976914969180171529'
 inputs: 
-  - ZX3hz85Vayc3Nhfs43ADhTeJXkDJ3fnXtfRiDW4pQzYRQ: 3
+  - ZX3hz85Vayc3Nhfs43ADhTeJXkDJ3fnXtfRiDW4pQzYRQ: 6
 outputs: 
  - Z24zaLMH6SCfAoC8ndS9XunjrkVpZW5tprhrZdSq3CcXWQ: 3
  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 2
--- a/templ/txgen.yml
+++ b/templ/txgen.yml
@ -8,4 +8,5 @@ outputs:
 message: This is a coinbase transaction of 50 coins for the genesis block
 pow: '3976914969180292365'
 signatures: 
-  - coinbase: Zan1RjVTw7GPVyd7aygjWSrGCtX3M8CVRu3NAyqLC8MToNPE93ju4RrFFjunnbeTYnudR2gSKCamK82xjEfWEtGzGvTRDw25MG
+  - coinbase:
+     - Zan1RjVTw7GPVyd7aygjWSrGCtX3M8CVRu3NAyqLC8MToNPE93ju4RrFFjunnbeTYnudR2gSKCamK82xjEfWEtGzGvTRDw25MG
--- a/templ/txnull.yml
+++ b/templ/txnull.yml
@ -0,0 +1,2 @@
+--- 
+...
--- a/templ/txudj.yml
+++ b/templ/txudj.yml
@ -0,0 +1,19 @@
+--- 
+inputs: 
+  - ZX3hz85Vayc3Nhfs43ADhTeJXkDJ3fnXtfRiDW4pQzYRQ: 8
+message: This is an exemple of transaction with 3 coins going to Trina M. and 2 coins to Michel C.
+nonce: '3976914969180171529'
+outputs: 
+  - Z24zaLMH6SCfAoC8ndS9XunjrkVpZW5tprhrZdSq3CcXWQ: 3
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 2
+pow: '3976914969180879919'
+signatures: 
+  - michelc: 
+      - ZHjX1cinn46FbTioY43qo2ZmfgnjZzXKRMiVN3tZRbxkzg61hNdKRoGptqeFa2tT5kzHqrSUTNcHFTfsLYSz5eDRGXmL3wzc1Gt
+      - 2021-06-14 19.54.28
+      - "[michelc,0,a]"
+  - anonymous: 
+      - ZHjX1cin92axvE1YtoPZyakN1HSFZmXpFxqSVqaWz1S3eyVA5rxTohXUcjcR5sPG9apfTEy34dSUyMPPuN2ngQNDMEFrEgZqbMN
+      - 2021-06-14 19.54.28
+      - "[anonymous,0,a]"
+timestamp: '1623693268225555737'
--- a/templ/txvalid.json
+++ b/templ/txvalid.json
@ -0,0 +1 @@
+{"txaddr":"ZCBtx7Wg59hvMogWDchKVcGUMo68qDe2dkRfzaskAh3G","outputs":[{"Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq":"100"},{"miner":"0"}],"message":"agreed to give 100 for coinbase transaction to Z21G...stq","nonce":"7717044746241858558","inputs":[{"coinbase":"100"}],"timestamp":"1625714463012468224","signatures":[{"coinbase":["ZHjX1cinHZFWDANGjhJtVn9QMcj4Ra1ejfcZCoccEpLBstEKXD2cvV3b1pP2kC4uhr4BS5g7sARoXarh2C9MyD2e2hpCCvgNYMx"]},{"Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq":["Zan1RjVTEjuzF4fi8FPrWxnsnba6p8co5Kcwob6DWoxFU17cuSNQMogKqfhE5WNFgPu1aD77kLcYkBaHoBh4QNq8NPtpMVkHCx"]},{"miner":["Z381YwxKfWGTkTz8iC7NFxD3wCXwRNWBPeyoGxBVTprpbKP8fC48e4b31i9mcjcrsdVJvon91rUtXZBDv9C1KcvthF5oX4v86"]}],"pow":"7717044746294553205"}
--- a/templ/txvalid.yml
+++ b/templ/txvalid.yml
@ -0,0 +1,18 @@
+--- 
+txaddr: ZCBtx7Wg59hvMogWDchKVcGUMo68qDe2dkRfzaskAh3G
+message: agreed to give 100 for coinbase transaction to Z21G...stq
+timestamp: '1625714463012468224'
+inputs: 
+  - coinbase: 100
+outputs: 
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 100
+  - miner: 0
+nonce: '7717044746241858558'
+pow: '7717044746294553205'
+signatures: 
+  - coinbase: 
+      - ZHjX1cinHZFWDANGjhJtVn9QMcj4Ra1ejfcZCoccEpLBstEKXD2cvV3b1pP2kC4uhr4BS5g7sARoXarh2C9MyD2e2hpCCvgNYMx
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 
+      - Zan1RjVTEjuzF4fi8FPrWxnsnba6p8co5Kcwob6DWoxFU17cuSNQMogKqfhE5WNFgPu1aD77kLcYkBaHoBh4QNq8NPtpMVkHCx
+  - miner: 
+      - Z381YwxKfWGTkTz8iC7NFxD3wCXwRNWBPeyoGxBVTprpbKP8fC48e4b31i9mcjcrsdVJvon91rUtXZBDv9C1KcvthF5oX4v86
--- a/txpool/txgen.yml
+++ b/txpool/txgen.yml
@ -1,11 +0,0 @@
--- 
-timestamp: '1623683269225552702'
-inputs: 
-  - coinbase: 50
-nonce: '3976914969180171529'
-outputs: 
-  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 50
-message: This is a coinbase transaction of 50 coins for the genesis block
-pow: '3976914969180292365'
-signatures: 
-  - coinbase: Zan1RjVTw7GPVyd7aygjWSrGCtX3M8CVRu3NAyqLC8MToNPE93ju4RrFFjunnbeTYnudR2gSKCamK82xjEfWEtGzGvTRDw25MG