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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7fb7a07f662106a51a02e4669af0edad43d80ee59b987b96b2f5212b780bc6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55db787a-c4a2-4f80-adb7-ea5ca865c1d8.json and https://artists.proofprofile.net/proofs/artist/55db787a-c4a2-4f80-adb7-ea5ca865c1d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Can't Win for Losin' (Kid Circus Presents Coolhurst) (feat. Substantial)