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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe018ecf172d6ed65944aeb4d911b006acc1e24f318b001e95a8d7760d5e5156e. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/762f62c1-97c1-46e6-8c86-f36b60e6cc38.json and https://artists.proofprofile.net/proofs/artist/762f62c1-97c1-46e6-8c86-f36b60e6cc38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aida Loves Swimming, Minecraft and Tarentum, Pennsylvania
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Mackenzie Loves Bike Riding, Little Mermaid and Winthrop Harbor, Illinois
William Loves Action Movies, Popcorn, and Conroe, Texas.
Lucas Likes Bikes, Pretzels, and Chips, Long Valley, New Jersey