1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef0e1fbc3da3758e819bf7d049e0e9fc539d93b8e0a4e3dee13f3076722c1b9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c0b4603-7431-4e20-ac96-57ab709af118.json and https://artists.proofprofile.net/proofs/artist/1c0b4603-7431-4e20-ac96-57ab709af118.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In and Oot the Harbor/Pt. Wheels of Glory
Chris Stout's Compliments to the Bon Accord Ale House / Ancestral Mud
The Locomotive / The Adequate Sufficiency