Arturo Tappin is a jazz/reggae saxophonist from Barbados. He performs predominantly the genre of smooth jazz, and has performed alongside personalities such as Roberta Flack, Monty Alexander, and on
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 0xd45c97373b225989dc0d1140660751d49b619d0ffa567868d023f11e850cf384. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e42e053a-ac39-4bd3-a04d-761b57ec8ec0.json and https://artists.proofprofile.net/proofs/artist/e42e053a-ac39-4bd3-a04d-761b57ec8ec0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).