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Merged
pull merged 2 commits into from
Aug 3, 2026
Merged

[pull] master from bitcoin:master #186

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644e484
BIP321: make all example addresses intentionally invalid
fametrano Jul 31, 2026
74e01fc
Merge pull request #2229 from fametrano/invalidate-example-addresses
jonatack Aug 3, 2026
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12 changes: 7 additions & 5 deletions bip-0321.mediawiki
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Expand Up @@ -142,6 +142,8 @@ Any existing BIP 21 implementation should automatically be fully compliant with

=== Examples ===

Note: The addresses used in these examples are intentionally invalid to prevent accidental transactions.

==== URIs ====

Just the address:
Expand Down Expand Up @@ -181,14 +183,14 @@ Some future version that has variables which are (currently) not understood but
bitcoin:175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W?somethingyoudontunderstand=50&somethingelseyoudontget=999

Multiple segwit addresses may be included for various versions of segwit, note that the human-readable part for all of them is `bc`
bitcoin:?bc=bc1qufgy354j3kmvuch987xe4s40836x3h0lg8f5n2&bc=bc1p5swkugezn97763tl0yty6556856uug0q6jflljvep9m4p7339x5qzyrh4g
bitcoin:?bc=bc1qufgy354j3kmvuch987xe4s40836x3h0lg8f5nq&bc=bc1p5swkugezn97763tl0yty6556856uug0q6jflljvep9m4p7339x5qzyrh4q

Many QR codes utilize all-uppercase URIs, which should be handled fine
BITCOIN:BC1QUFGY354J3KMVUCH987XE4S40836X3H0LG8F5N2?BC=BC1P5SWKUGEZN97763TL0YTY6556856UUG0Q6JFLLJVEP9M4P7339X5QZYRH4G
BITCOIN:?BC=BC1QUFGY354J3KMVUCH987XE4S40836X3H0LG8F5N2&BC=BC1P5SWKUGEZN97763TL0YTY6556856UUG0Q6JFLLJVEP9M4P7339X5QZYRH4G
BITCOIN:BC1QUFGY354J3KMVUCH987XE4S40836X3H0LG8F5NQ?BC=BC1P5SWKUGEZN97763TL0YTY6556856UUG0Q6JFLLJVEP9M4P7339X5QZYRH4Q
BITCOIN:?BC=BC1QUFGY354J3KMVUCH987XE4S40836X3H0LG8F5NQ&BC=BC1P5SWKUGEZN97763TL0YTY6556856UUG0Q6JFLLJVEP9M4P7339X5QZYRH4Q

A testnet segwit addresses must be included in the `tb` parameter
bitcoin:?tb=tb1qghfhmd4zh7ncpmxl3qzhmq566jk8ckq4gafnmg
bitcoin:?tb=tb1qghfhmd4zh7ncpmxl3qzhmq566jk8ckq4gafnmq

Characters must be URI encoded properly.

Expand All @@ -207,7 +209,7 @@ Multiple proof of payment URIs must not appear, even if they are sometimes prefi
bitcoin:175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W?pop=callback%3a&req-pop=callback%3a

A testnet segwit addresses must be included in the `tb` parameter, not the `bc` parameter.
bitcoin:?bc=tb1qghfhmd4zh7ncpmxl3qzhmq566jk8ckq4gafnmg
bitcoin:?bc=tb1qghfhmd4zh7ncpmxl3qzhmq566jk8ckq4gafnmq

==== Proof of Payment ====

Expand Down
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