1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xe826bed83235e1ca9522aa5bb4ac1467e49f6da962d52b6880b5e9268cd9a221. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f399d49f-7789-492d-9552-bf42e5aa992a.json and https://artists.proofprofile.net/proofs/artist/f399d49f-7789-492d-9552-bf42e5aa992a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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Ta Chỉ Là Người Dưng Quan Tâm Nhau Làm Gì Nữa
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