{"copyright_id":"0xea25fab4a5fceecb2443dd7bebf2c15b0ff1b5ebcb58c18edcbc52528b525a1e","name":"Joshua Hindman","registered_at":"2026-06-16T03:51:23Z","symbol":"NIM0928626","token_address":"0x27a2019220ff43d0d9fe3c378a66ac24a8dd184a","type":"artist","uuid":"28eee7f5-55f2-4b9f-a02a-b9ca2ab18ada"}
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 0xea25fab4a5fceecb2443dd7bebf2c15b0ff1b5ebcb58c18edcbc52528b525a1e. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28eee7f5-55f2-4b9f-a02a-b9ca2ab18ada.json and https://artists.proofprofile.net/proofs/artist/28eee7f5-55f2-4b9f-a02a-b9ca2ab18ada.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).