Paul Sztorc on Twitter: "The main innovation vs Bip47v3: shrink the "notification", from 32 to 4 bytes. 4 bytes can count to 4.3 billion (vs human population 8 billion) so occasionally you get false positives (which are harmless). Good tradeoff. Harder for lite clients, but fixable." / Twitter

The main innovation vs Bip47v3: shrink the "notification", from 32 to 4 bytes. 4 bytes can count to 4.3 billion (vs human population 8 billion) so occasionally you get false positives (which are harmless). Good tradeoff. Harder for lite clients, but fixable.

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Clark Moody

@clarkmoody

Sep 30, 2022

Private Payments: an improved BIP47, has just landed as BIP351

- Reusable payment codes - No static notification address - Payer and payee privacy - Uses a single OP_RETURN payload for wallet recovery (per recipient) github.com/bitcoin/bips/b

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1:29 PM · Oct 5, 2022

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The payload is 40 bytes. And the harder part for light clients is that you're expected to download/verify all notifications as the recipient is blinded. I personally prefer the original Prague design that outsources the notification rather than scanning: lists.linuxfoundation.org/pipermail/bitc

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