--- # block genesis
n: 0 # blocknumber (on 32bit max block-number : 4294967296)
txroot: QmNonce+qmerkle-without-zeros
# echo -n '' | ipfs add 
txprev: QmbFMke1KXqnYyBBWxB74N4c5SBnJMVAiMNRcGu6x1AwQH
# ipfs object new unixfs-dir
payload: QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn