Pat Irwin (born May 17, 1955) is an American composer and musician who was a founding member of two bands that grew out of New York City's no wave scene in the late 1970s, the Raybeats and 8-Eyed Spy.
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30a5a9dbd4fd57a0120ed5152e30be9b876a597b4fda9c82a4aaee549e57a85. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0d4b384-1612-4609-9f96-e7ea9404ba34.json and https://artists.proofprofile.net/proofs/artist/a0d4b384-1612-4609-9f96-e7ea9404ba34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).