View in context in the libbitcoin Slack #general mirror.
schnorr: [hash(32)][xkey(32)][sig(64)][block-fk(3)] ecdsa: [hash(32)][cpk(33) ][sig(64)][block-fk(3)] multisig: [hash(32)][cpk(33) ][sig(64)][m|n(1)][group(2)][blockid-fk(3)]