An extremely simple BIP write-up for a backward compatible URI scheme to help with segwit adoption by online stores and merchants.
==== This BIP is a modification of an earlier [[bip-0021.mediawiki|BIP 0021]] by Nils Schneider and Matt Corallo ==Abstract== This BIP proposes a URI scheme which allows for backward compatibility with native segwit (bech32) wallets and legcy wallets (base58) ==Motivation== The purpose of this URI scheme is to enable all users to easily make payments from any wallet, without allowing backward compatibility to be a barrier to segwit adoption. This BIP allows a merchant to preferentially receive payments to a bech32 address, while gracefully allowing older clients to make base58 encoded payments. ==Specification== === Query Keys === *addr: an alternative bitcoin destination which is preferred over the "bitcoinaddress" field of the url == Appendix == === Simpler syntax === <nowiki>bitcoin:<address>[?amount=<amount>][?label=<label>][?message=<message>][?addr=<bech32address>]</nowiki> === Examples === Just the address: bitcoin:3BnsWZiTdYVrqiPh2RP3q9Y3ZqvhbCN2it?addr=bc1q5u92yq20hss4rc99mfu23h4dxkxn4uuyqd5dzy&amount=50&label=Luke-Jr&message=Donation%20for%20project%20xyz == Reference Implementations == === Bitcoin clients === * none yet
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