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 0x05927cc78fe856c7e86cc7b0582108132b565306e16a18316266dc5a8b8e3166. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6437ecee-bfb9-41c1-850a-f12d0c2c17d6.json and https://artists.proofprofile.net/proofs/artist/6437ecee-bfb9-41c1-850a-f12d0c2c17d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Invasión Rockolera "El santo de Naldo Campos"
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 0x8420f9bb158c39b19ddc5c67b99c38f38a35f6cad36120e641afa75f50d38e31. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZES81809060.
Invasión Rockolera (El santo de Naldo Campos)
Cautiva de Amor - Sesión en Vivo (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56ef51e55074b04dba26c9b75cb18e85ff8c3bbac2fa4c2fe52220a118f8b66. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:27:29Z), 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/QZNWT2361278.
Mix Bailable: El Telefono / Mariposita / Chofersito Carretero