anchor.diff:  keccak-256,         ,                         0x1B
   keccak-384,         ,                         0x1C
   keccak-512,         ,                         0x1D
  +murmur3,            ,                         0x22
   ,, Note: keccak has variable output length. The number specifies the core length
   blake2b,            ,                         0x40
   blake2s,            ,                         0x41
  
positive.code: eth-tx,             Ethereum Tx (RLP),        0x91
  bitcoin-block,      Bitcoin Block,            0xb0
  bitcoin-tx,         Bitcoin Tx,               0xb1
  stellar-block,      Stellar Block,            0xd0
  stellar-tx,         Stellar Tx,               0xd1
  
negative.code: sha1,               ,                         0x11
  sha2-256,           ,                         0x12
  sha2-512,           ,                         0x13
  dbl-sha2-256,       ,                         0x56
  sha3-224,           ,                         0x17
  sha3-256,           ,                         0x16
  sha3-384,           ,                         0x15
  