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 0x7a953e22ef1f377d1ef6cb662926c4db97f7485ea0d24b536e9b1985bb612856. 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/06cd8b85-0c42-4771-8005-7a2a66ca55ac.json and https://artists.proofprofile.net/proofs/artist/06cd8b85-0c42-4771-8005-7a2a66ca55ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Pastillita (feat. Rafa Pabön, Lyanno, Eladio Carrión, Anonimus, Brray, Joyce Santana, Sousa, Mora & KRZ) [Remix]
La Pastillita (feat. Rafa Pabön, Lyanno, Eladio Carrión, Anonimus, Brray, Joyce Santana, Sousa, Mora & KRZ) - Remix
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 0x797930cf4f652b0d11dcb4db74417aed4026251add427f5e531a7ddc704b467f. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USSD11800311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797930cf4f652b0d11dcb4db74417aed4026251add427f5e531a7ddc704b467f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSD11800311.
Olvidemos (feat. Alvaro Díaz, Sousa & Saox)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ceb4133bee2bc60a499d67c1682d61dbb607ba72ef72f239ba89a014b906b4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSD11800374.