1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x96cfb76b60a9bdb0ada9ae896098fb189a898dfd69aa74ecaf6e98c206b36c2c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0646e259-963a-4c79-ba7e-dc10527273eb.json and https://artists.proofprofile.net/proofs/artist/0646e259-963a-4c79-ba7e-dc10527273eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Discos Fuentes Armando Hernandez Collection
Lo Mejor de Armando Hernández: 18 Éxitos Bailables Con Acordeón (Vol. 2)
El Mejor Intérprete Tropical - 16 Exitos
{"copyright_id":"0x2495b3b4d619e80dbfc974ffcccd65aa1382b6e249db87f2e179fe69b71a59e0","isrc":"COF019601330","name":"Por Retenerte","registered_at":"2026-06-29T04:31:22Z","spotify_id":"2JJCf1rp5Zvb8LAoRAuLVJ","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2495b3b4d619e80dbfc974ffcccd65aa1382b6e249db87f2e179fe69b71a59e0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2JJCf1rp5Zvb8LAoRAuLVJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2JJCf1rp5Zvb8LAoRAuLVJ.
Hatos De Mi Tierra (El Llanero Cantador)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057704b478ec29f3c160e37612808604a75a961736b85650fbfc3d221370b02a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3HFtZAQUEo6SxVOqvs9o2u.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3HFtZAQUEo6SxVOqvs9o2u.