[BIP Proposal] Standardization of On-Chain Identity Publication
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Edyth Kylak Johnson
Nov 20, 2025, 4:48:58 AMNov 20
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Dear bitcoin-dev,
I am submitting a draft Bitcoin Improvement Proposal titled “Standardization of On-Chain Identity Publication” for discussion. The draft specifies canonical CBOR payloads, Poseidon-based `nullifier_hash` domain separation (`v0iden` / `v0corp`), and an optional Ed25519 signature wrapper. The proposal text and implementation notes are available in this PR: https://github.com/bitcoin/bips/pull/2038 . I welcome review and feedback on interoperability, canonicalization (deterministic CBOR), and security considerations.
I am submitting a draft Bitcoin Improvement Proposal titled “Standardization of On-Chain Identity Publication” for discussion. The draft specifies canonical CBOR payloads, Poseidon-based `nullifier_hash` domain separation (`v0iden` / `v0corp`), and an optional Ed25519 signature wrapper. The proposal text and implementation notes are available in this PR: https://github.com/bitcoin/bips/pull/2038 . I welcome review and feedback on interoperability, canonicalization (deterministic CBOR), and security considerations.
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