RegEx to match Bitcoin addresses?

Question

I am trying to come up with a regular expression to match Bitcoin addresses according to these specs:

A Bitcoin address, or simply address, is an iden

Answer 1

Based on the description here: https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki I would say the regex for a Bech32 bitcoin address for Version 1 and Version 0 (only for mainnet) is:

\bbc(0([ac-hj-np-z02-9]{39}|[ac-hj-np-z02-9]{59})|1[ac-hj-np-z02-9]{8,87})\b

Here are some other links where I found infos:

• https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki
• http://r6.ca/blog/20180106T164028Z.html