{"copyright_id":"0x6fe1df272d9e2f29c2aad2bdee124bcd4a6de7bc457491706e220fca3c29edd3","name":"Charlie Sepúlveda & The Turnaround","registered_at":"2026-06-20T17:48:10Z","symbol":"NIM1672520","token_address":"0x04caac0ce5d1fa13ab7a7bb8456eca73ebff8dd8","type":"artist","uuid":"bd6450cc-a77b-4ce8-8b7a-59ad5b12c305"}
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 0x6fe1df272d9e2f29c2aad2bdee124bcd4a6de7bc457491706e220fca3c29edd3. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd6450cc-a77b-4ce8-8b7a-59ad5b12c305.json and https://artists.proofprofile.net/proofs/artist/bd6450cc-a77b-4ce8-8b7a-59ad5b12c305.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).