Alan Estrada, Natalia Sosa, Ana Brenda Contreras, Alejandro de la Madrid Nogueda, Federico di Lorenzo, Sergio Enrique Catalán, Maru Barrios, Erika Tahis Moreno
{"copyright_id":"0x14f3f67dd14e993e1c2619453fe2d81fb80c61622e501fde84f3f6beae24b1da","name":"Alan Estrada, Natalia Sosa, Ana Brenda Contreras, Alejandro de la Madrid Nogueda, Federico di Lorenzo, Sergio Enrique Catalán, Maru Barrios, Erika Tahis Moreno","registered_at":"2026-06-20T14:33:36Z","symbol":"NIM1631207","token_address":"0xb6d35f798cf8023f5cef7b4720b7c702acb4da49","type":"artist","uuid":"b4746571-8f69-4fb0-8d9a-17dde510028e"}
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 0x14f3f67dd14e993e1c2619453fe2d81fb80c61622e501fde84f3f6beae24b1da. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4746571-8f69-4fb0-8d9a-17dde510028e.json and https://artists.proofprofile.net/proofs/artist/b4746571-8f69-4fb0-8d9a-17dde510028e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).