A message written into Bitcoin.

vout=5 contains BC3Dev's signature over the payload in vout=7 | vout=6 contains BC3Dev's signature over the payload in vout=8 | vout=7 contains the aserti9-2d constant-generation Python script | vout=8 contains the aserti9-2d mainnet arithmetic reference implementation, as an algorithmically equivalent port of the C++ implementation in BitcoinIII-Core