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 0x882f5003a7f5027ce6a5b9fc74ca3a54568082e4ca04a254e9628e1119f86a75. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05ab4dac-3a85-4a42-b1a1-82fa5a0b6390.json and https://artists.proofprofile.net/proofs/artist/05ab4dac-3a85-4a42-b1a1-82fa5a0b6390.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Julius (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
Encuentros (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
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 0x02737d8c5736d6161f69a58763200e350fedb2321795460ecfa22c73b7a890ee. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR10S1592518.
Fiesta en Corraleja (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22b1cf20bf0df6fb3f43fc2ae9ff09fc6ed839f457d34276657fc7fdcb27cc6. 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/FR10S1592519.
Bunde Tolimense (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0880a35e12796fbbdbcd2bbed6fe2c103475d020ec2323e445ceb71de578e2d1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S1592520.
A San Pelayo (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969d4afcc6c97b0c1d463fe14c60eba3d7c074734c6c1ac503494b4cc4feb6ed. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR10S1592521.
El Puente (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5dc1543ba848cbe093bfd17b153f1afb03727440b1e12a77f4e5bace44196c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1592522.
Jugando con el Tiempo (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2281b2f84f0f86cdbbaba5a738a2a3751033a8f5abb0477b9959853b6dc33559. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR10S1592525.
Canto Waunaná (feat. Ben Monder, Satoshi Takeishi, Jairo Moreno) - Orígenes
Orígenes (feat. Ben Monder, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854f156b07c18ad0b8e95337f14b54392a472941b8a2620c355102727958b9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S1550647.