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 0x8e1448a4f263e0d360543f37f1a5e886e962301795c654ba62e8d39fb55bfe59. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94582635-452b-4011-bf14-4be871b3617b.json and https://artists.proofprofile.net/proofs/artist/94582635-452b-4011-bf14-4be871b3617b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
相逢有樂町 (林文隆鋼琴酒吧台語經典2)
相逢有樂町（林文隆鋼琴酒吧台語經典2）