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 0x06d4a5aebee3e156c5b804e793d1f8c24ac6c7cc547cb1cf4768aee7b74f02b7. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a29e2a67-aa2c-4efd-a48a-d205c887a05e.json and https://artists.proofprofile.net/proofs/artist/a29e2a67-aa2c-4efd-a48a-d205c887a05e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concept Collective: The Miscellaneous Tapes