"Deacon Blues" is a song by the American rock band Steely Dan, written by Walter Becker and Donald Fagen in 1976 for the band's sixth album, Aja (1977). It peaked at number 19 on the US Billboard Hot
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 0xe9006465d599b901915e779aef47ea4fea14645f6f9b95fb9d1c9617b174b949. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98766b2a-767b-4e7d-8f7d-0168de7b1cfb.json and https://artists.proofprofile.net/proofs/artist/98766b2a-767b-4e7d-8f7d-0168de7b1cfb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).