---

name: bitcoin-privacy-bip47 description: | BIP47 PayNyms — reusable payment codes via notification tx + Diffie-Hellman derivation. See also the wallet-side reference at ../../wallets/payment-codes/. USE WHEN: integrating PayNyms, evaluating against Silent Payments. allowed-tools: Read, Grep, Glob

BIP47 PayNyms (privacy view)

Privacy-oriented summary; full details in ../../wallets/payment-codes/SKILL.md.

Privacy properties

• Sender has anonymity-of-1 — server can correlate "X paid Y" via notification tx.
• Receiver public address never appears on chain.
• Different sender pairs use different derivation chains → no cross-sender correlation.

Compared to Silent Payments

• BIP47 has notification tx that leaks the existence of sender ↔ receiver pairs.
• Silent Payments has no notification tx — better privacy.
• BIP47 has lower scan cost for receiver.

Status

• Sparrow + Stack Wallet maintain BIP47 support.
• Samourai (formerly the dominant BIP47 wallet) shut down 2024.
• Adoption in decline as Silent Payments matures.

See also

• ../wallets/payment-codes/SKILL.md
• silent-payments/SKILL.md
• stealth/SKILL.md