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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4145f2b05c6b8be07d806956570f88d39b1992eb0477bb2c16f2b6e9a3f2b312. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2727177-9c63-4c21-9f75-dbf21353a21d.json and https://artists.proofprofile.net/proofs/artist/b2727177-9c63-4c21-9f75-dbf21353a21d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940f25eab21d8d6daf70fe0ec84d84891b724a42c32b23438b3bfa1b186af2ba. 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/QZ7R41751428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62accd194b7ce04902cc78f2f0f195e3b0aa56fbb971597da05c0da2429b457b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ7R41751303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0369d2d2cd1fa2d19463e78496e2d18aee9478610615b3959f2a0c20bfd257ec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ7R41751311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d26d6bd3cd25e53e60d7d4282bd9e21b4cbbd7e7b22091782211613885e25f. 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/QZ7R41751312.
4 Décadas Haciendo Historia y Dejando Huellas (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288b5c9618c596bafb6c06d935fac48cf3b7cd564e39b95db4cb94d664580d83. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCGJ2171247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9223bb44f8712b52a7e7999cf337f3aa1147ed6cf8ffda2bb9f9dca1b91e04. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCGJ2171249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab4a6a08f28d02333378512bcc31635818088eba7f529fabaf40f846a8966d2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCGJ2171262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc642c907ea32462150cc2aa8c206871e10a18aaaa907be38f8848064376e55. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ7R41751420.
Mix Latino: Muchacha de 15 / Se Que Me Quieres / Puros Deseos de Amar / Bonita y Mentirosa / Todo Se Derrumbó / Pegadita de los Hombres / Ella No Baila Sola / Baion de Madrid / Bamboleo / A C
Popurrí de Éxitos: Princesa / Un Nuevo Amor / Amor de Primavera / Regresaras / Háblame / Recuérdame / Motivos / Somos / Que Difícil / Dile / Pensando en Ti