{"copyright_id":"0x41cffbfed18d64aaf02fb93813af8f8faa4a84244fb233ebf5abdbdfd2704c3f","name":"Viviana Iparraguirre de las Casas","registered_at":"2026-06-16T19:23:19Z","symbol":"NIM1151044","token_address":"0x3dd1d106b42fb0b19cd4aa3a78fd1cb70c00f233","type":"artist","uuid":"55a0fff0-0d1e-48f4-bc47-1a066b440631"}
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 0x41cffbfed18d64aaf02fb93813af8f8faa4a84244fb233ebf5abdbdfd2704c3f. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55a0fff0-0d1e-48f4-bc47-1a066b440631.json and https://artists.proofprofile.net/proofs/artist/55a0fff0-0d1e-48f4-bc47-1a066b440631.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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