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 0xd14b2ddfeb47f8d8936994e99de4057da0ab490066d3edfe9e4dc92f9416edcd. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fcbce59-e237-448c-882b-6408b0963e61.json and https://artists.proofprofile.net/proofs/artist/7fcbce59-e237-448c-882b-6408b0963e61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Las Curvas Del Placer (12" Remix) [Remasterizado 2022]
Sed De Venganza (Remixes) [Remasterizado 2022]
Las Curvas Del Placer (Remasterizado 2022)
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 0x94a34c7d76c7e4a43d5698c130dfbed5186c7d7f80ffddabe4899155bb573dba. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:23:39Z), 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/QZ4JJ1649650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95db78e4aaaae69a532ea74750467fa8908bb243ccc45b3d27c5f09146422249. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZ4JJ1649651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7681b1fd73eb83985a0e940e1ca5f59bed4b56ad4f53261c6132bd062e37d25e. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZ4JJ1649654.
En el Oeste nos encontrarás: Tributo a Niños del Brasil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6353a876e2cc3a6e8b6cb0f6a9d4d17a4a7ac35fe7b10d85740d0160d5c651c3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ4JJ1648244.