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 0x015b3c7b3a4ec93add5a4f5a82483f66832afca27c7763954bafd4361e2f4966. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b83d2f3c-44c6-49d0-bac6-5e6d6f224079.json and https://artists.proofprofile.net/proofs/artist/b83d2f3c-44c6-49d0-bac6-5e6d6f224079.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tell Me Where To Go (Acoustic Rec. Room Sessions)