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 0x1a6de5ec5705b8a560762622a8c8a6d9b1a5810db4204cfc454f26ba711ff255. 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/48b14b23-c0b3-4f8c-8849-cb4321331c64.json and https://artists.proofprofile.net/proofs/artist/48b14b23-c0b3-4f8c-8849-cb4321331c64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
孤单的人听着孤单的歌 - 和声伴奏版