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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdabf5de54ff8db7e1328e501cbecff095a3fbfbeaf606c7e5b40b73280d8df1. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09a27005-cc9f-43b4-ba50-dd5a53a7155e.json and https://artists.proofprofile.net/proofs/artist/09a27005-cc9f-43b4-ba50-dd5a53a7155e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fishbone (Boom Merchant's Lost in Tokyo Remix)
Attend the Tension - Takashi Watanabe Remix