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 0xaceea28c14b24bdd2246b5b2a949df06e0f4ac7dac84e2a75e8a678486a90612. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22a01c6c-e4dc-4974-9cab-08fde5f0cf11.json and https://artists.proofprofile.net/proofs/artist/22a01c6c-e4dc-4974-9cab-08fde5f0cf11.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 0x2e150c5b1d05f2f83bd52532a465df71e34ba638bf832ecf8464be2ff351d5fe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNJX2339091.
Dios Cuidame (Papy Crish & El Rapper RD Remix)
Dios Cuidame - Papy Crish & El Rapper RD Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75596bcb2315c6432fae0535c83c4c49e39b3be7d86459d4ac947e5329bfc88. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:10:36Z), 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/QZMEP2405493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef525117b168586a026bc7a37e88349454487c3159ef9eff0cd68eb64d7bf19. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWU2412836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dd42dc35c8539bfe5a3ff76459d2a2f5ce206d501790dc353727dc9e8d71b3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZNWZ2586919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53f1727e5c1eba3f4045e7ace58d9ea0a27958f6a348900a7293aa798ba4975. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:53:18Z), 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/QZNJY2522855.