--- # block genesis
ver: 0x00
seq: 0 # blocknumber (on 32bit max block-number : 4294967296)
# ipfs object new unixfs-dir
data: QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn
# echo -n '' | ipfs add 
bkprev: QmbFMke1KXqnYyBBWxB74N4c5SBnJMVAiMNRcGu6x1AwQH