Minori Watanabe (CV: Tomohito Takatsuka)
{"copyright_id":"0xcd8f2a5cdc01dd5c3628f431148d6aaa3b85fd0df9d84c5c70802036ccdc4cc6","name":"Minori Watanabe (CV: Tomohito Takatsuka)","registered_at":"2026-06-17T18:56:12Z","symbol":"NIM1488052","token_address":"0xc34ade997628caab5a63d8d8eae71f36acb930ab","type":"artist","uuid":"97e1cc10-f05d-4408-a515-bddda924d005"}
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 0xcd8f2a5cdc01dd5c3628f431148d6aaa3b85fd0df9d84c5c70802036ccdc4cc6. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97e1cc10-f05d-4408-a515-bddda924d005.json and https://artists.proofprofile.net/proofs/artist/97e1cc10-f05d-4408-a515-bddda924d005.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).