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 0xde7585554212a014eb450c0b038dd5df591d360b86fee13f3e74ef644d101703. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64a19b04-5462-4c3f-993e-0deedff55448.json and https://artists.proofprofile.net/proofs/artist/64a19b04-5462-4c3f-993e-0deedff55448.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Twelve Wooden Boxes - Gala Glasshouse Sessions
The Writings And The Pictures And The Song