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 0x581a9d2d770579b76b5abb957758176c6af57507a955496206aef885e4558f79. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19ba02e7-014f-4b1a-a48b-e722e8ea3060.json and https://artists.proofprofile.net/proofs/artist/19ba02e7-014f-4b1a-a48b-e722e8ea3060.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9321e26970e0038c87c18751328bf2ac93bc51f98ac566aa93ae282f426c78db. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:42:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR6V2341650.
MIX TOMARÉ: Perdóname / Cómo has hecho / Tomaré para olvidar / Muy lejos de ti (Sesión en vivo)
MIX TOMARÉ: Perdóname / Cómo has hecho / Tomaré para olvidar / Muy lejos de ti - Sesión en vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7eb4cf5114b32415958fd4309a19aa9751f57ffc5ed76d8f0a110d4542121e9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2422711.
EL AMOR MÁS GRANDE DEL PLANETA (en vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a21670a993a5e04be9146f3f9d0514578953edd216289e4e59b1e10ddf739d3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22590773.