diff --git a/docs/pow.md b/docs/pow.md
index 7647817..f742f2b 100644
--- a/docs/pow.md
+++ b/docs/pow.md
@@ -10,11 +10,12 @@ where the difficulities is set to <span id=dif><i>:dif</i></span>.
 hash algo: <input name="algo" value="SHA256" size="7">
 <br>data: <input name="data" value="some data" size=24>
 <!-- perl -Ilib -Mmisc -e 'print $misc::inonce'
-5: 12131054599640746025
-6: 12131054600136000000
-8: 12131054604672000000
+5: 12131054599640000000
+6: 12131054600130000000
+8: 12131054604670000000
+9: 12131054702320000000
 -->
-<br>nonce: <input name="nonce" value="12131054604672000000" size=20>
+<br>nonce: <input name="nonce" value="12131054702320000000" size=20>
 <br>difficulty: <input name="dif" value="7" size="2">
 <br>hashcash: <span name="hashcash"><i>?</i></span>
 <br>proof: <span id="pow"><i>:pow</i></span>
@@ -57,7 +58,7 @@ sub hashcash { # ex: hashcash('SHA256',$data,$nonce,7);
        my $rate = ($n - $nonce) / $elapse / 1000;
        #printf "%d: %s %s %s %.0fkH/s %.1fmin\n",$l, $n,unpack('H*',$pn),$h16,$rate,$elapse/60;
        # count any zeros : ($h16 =~ m/0/g) !
-       my $zc = ($h16 =~ /80+/) ? length($&) : 0;
+       my $zc = ($h16 =~ /80*/) ? length($&) : 0;
        #print "zc: $zc\n";
        $l = $zc;
        last if $zc >= $difficulty;
diff --git a/templ/config.yml b/templ/config.yml
new file mode 100644
index 0000000..b4be93b
--- /dev/null
+++ b/templ/config.yml
@@ -0,0 +1,23 @@
+--- # 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
diff --git a/templ/genesis.yml b/templ/genesis.yml
new file mode 100644
index 0000000..781ba46
--- /dev/null
+++ b/templ/genesis.yml
@@ -0,0 +1,15 @@
+--- # 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
diff --git a/templ/keys.yml b/templ/keys.yml
new file mode 100644
index 0000000..93ab034
Binary files /dev/null and b/templ/keys.yml differ
diff --git a/templ/nullblock.yml b/templ/nullblock.yml
new file mode 100644
index 0000000..c854162
--- /dev/null
+++ b/templ/nullblock.yml
@@ -0,0 +1,16 @@
+--- # 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: ~
diff --git a/templ/txcoin.yml b/templ/txcoin.yml
new file mode 100644
index 0000000..abebb11
--- /dev/null
+++ b/templ/txcoin.yml
@@ -0,0 +1,11 @@
+--- 
+message: This is a coinbase transaction of 100 coins to be distributed to Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq
+inputs: 
+  - coinbase: 100
+outputs: 
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 100
+timestamp: '1625385951347499858'
+nonce: '3976914969180171529'
+pow: '3976914969180292365'
+signatures: 
+  - coinbase: ~
diff --git a/templ/txexemple.yml b/templ/txexemple.yml
new file mode 100644
index 0000000..6f222b8
--- /dev/null
+++ b/templ/txexemple.yml
@@ -0,0 +1,15 @@
+--- 
+message: This is an exemple of transaction with 3 coins going to Trina M. and 2 coins to Michel C.
+timestamp: '1623693268225555737'
+nonce: '3976914969180171529'
+inputs: 
+  - ZX3hz85Vayc3Nhfs43ADhTeJXkDJ3fnXtfRiDW4pQzYRQ: 3
+outputs: 
+  - Z24zaLMH6SCfAoC8ndS9XunjrkVpZW5tprhrZdSq3CcXWQ: 3
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 2
+signatures: 
+  - Z21GdiEggiGa7TPNaqGY8coBy97LoRNpPVu9fxig75nstq: 
+     - ZHjX1cinn46FbTioY43qo2ZmfgnjZzXKRMiVN3tZRbxkzg61hNdKRoGptqeFa2tT5kzHqrSUTNcHFTfsLYSz5eDRGXmL3wzc1Gt
+  - anonymous:
+     - ZHjX1cin92axvE1YtoPZyakN1HSFZmXpFxqSVqaWz1S3eyVA5rxTohXUcjcR5sPG9apfTEy34dSUyMPPuN2ngQNDMEFrEgZqbMN
+pow: '3976914969180292365'
diff --git a/templ/txgen.yml b/templ/txgen.yml
new file mode 100644
index 0000000..ac61f35
--- /dev/null
+++ b/templ/txgen.yml
@@ -0,0 +1,11 @@
+--- 
+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