Thomas Wilkinson Coppola (June 6, 1945 - December 29, 2023). Obituary for Tom Coppola from Allegro magazine (NYC musicians' union Local 802), February 2024 was a pianist, composer and arranger, known
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacecfaa7e562cc9479f62724c8287bae03972600aac6d7e2f277eab49bde1e0. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d432ac7c-66fc-4c69-af21-321e75a320cb.json and https://artists.proofprofile.net/proofs/artist/d432ac7c-66fc-4c69-af21-321e75a320cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).