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 0x6edd43463c7beadb5abab4a7282d6f2c8fe5621a89ee21e6b8258a35422fcc59. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad8ea2fa-6811-44c7-b9e2-b56f101ccddc.json and https://artists.proofprofile.net/proofs/artist/ad8ea2fa-6811-44c7-b9e2-b56f101ccddc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Siempre Estoy Pensando en Ella, El Amor Estuvo Aquí - En Vivo
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 0x5dddaed521efe26e7421f02fbb3a38146bafdde7cc83775a4bd246bf9c61c8d1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NL8RL2329074.
Mas Dulce que Tú, Tu Llegaste Cuando Menos Te Esperaba, Necesito Amor - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eaad16a9ddb7c947585926b0e1b2fa7f2a3a130e73f2498b804cece88053591. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NL8RL2329095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce923a69ed3aabdc40a48d477819bb66bc26fe7f1c442950fab22a95e8c1947. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NL8RL2329096.
Vete Con El, Y Te has Quedado Sola - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3a160d4fbb0151bd39bc7084d8f91835a4516a8b2caa6dcd3d213170f90e49. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL8RL2329075.
Cada Momento, Mi Viento Es Soledad, Yo Esperaré tu Cambiarás, Vuleve a mi Lado, Si Me Vas a Abandonar - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65000ccffd0870e01283b3b1f1b0b3afa33c9a91b844514ec81cf47e417e3ff0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NL8RL2329076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4ba5ccaf64f1f1d6cad28eb91df02c794c5f7fa99114f60ace993540362f07. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QM6N21502117.