Dr. Jack Cockrill Middle School Honors Band
{"copyright_id":"0x7ab48bc4a4fcab43fafcbc99fcbc11c31503cec16a85f29d4c0693dd34478e98","name":"Dr. Jack Cockrill Middle School Honors Band","registered_at":"2026-06-20T06:12:47Z","symbol":"NIM1536902","token_address":"0x04a847ea2acf005acb699d94ad9d83c29a329aa8","type":"artist","uuid":"a219276c-0e8b-43fe-a88e-c38db85bf01a"}
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 0x7ab48bc4a4fcab43fafcbc99fcbc11c31503cec16a85f29d4c0693dd34478e98. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a219276c-0e8b-43fe-a88e-c38db85bf01a.json and https://artists.proofprofile.net/proofs/artist/a219276c-0e8b-43fe-a88e-c38db85bf01a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
2016 Midwest Clinic: Dr. Jack Cockrill Middle School Honors Band (Live)