Address format

[aguycalled]

BLSCT addresses encode two BLS public keys. Each serialised public key takes 48 bytes.

Both base58check and bech32 encoding formats have issues encoding larger amounts of data, as the checksum is limited in its efficacy. The bech32 design explicitly limits the encoding and decoding to 41 bytes.

Therefor we will need to use our own modified version for the BLSCT addresses.

Tasks:

• Create a modified version of bech32 which allows the encoding of two public keys + prefix.
• Document it in https://github.com/navcoin/navcoin.github.io/tree/main/sources/docs
• Release libraries in other languages (Javascript, Python, ...)

[aguycalled]

Related conversation:

FiloSottile/age#452
https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki#checksum-design