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 0x458ad9e22ede106c6ecb9e02c959740f6a025ff7fc72bd92eba7cabb94302333. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/008348d9-2190-4932-a9ab-7e68cd5ef106.json and https://artists.proofprofile.net/proofs/artist/008348d9-2190-4932-a9ab-7e68cd5ef106.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
60 Phút Tươi Vui Với Quang Minh & Hồng Đào
3600 Giây Cười Với Quang Minh & Hồng Đào
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