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 0x0c24fdaef2e3160a371e15d220b2d7b771f3ee8a933cb539ab4fdf35ddea29c0. 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/8492278b-f52b-4797-bdab-05e75cb0914a.json and https://artists.proofprofile.net/proofs/artist/8492278b-f52b-4797-bdab-05e75cb0914a.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 0xea3b66edb14f5d850481df6b6f64cb71c49667a0395ab7730fb2ba21bc45179c. 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/QMBZ92052879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe187db3691b2c0ed67056abe38a65af1b4ed37e2cba37903f088a86dbc8a046e. 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/QMBZ92052933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd794995e911ed0e3481c3867c526b0f4b02df8237cd80fc46ba007eacd8e18cb. 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/QMBZ92052984.
Encuentros (feat. Ben Monder, Ramón Benítez, Satoshi Takeishi, Jairo Moreno)
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.
Orígenes (feat. Ben Monder, Satoshi Takeishi, Jairo Moreno)
Travesía (feat. Ben Monder, Satoshi Takeishi, Jairo Moreno)
La Chiva (feat. Ben Monder, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799c2a85880bb8a61bdd9ef1eee36a36f0034824bf1f6799dbc8b8031d19824e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX991512465.
Mi Buenaventura (feat. Ben Monder, Satoshi Takeishi, Jairo Moreno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c03fb162bd8b690d56e1e7f8e41b5786a1dff44a9e320f0a21abf481ab4624. 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/FRX991512469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65747176a1398ae4b8e2707b5e9d953eefb12c8f33eb8307ab2ba1241c401166. 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/QM4TW2175428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b0b40b2725c9c10b2dea59371182cc4772fd5dd6b127d689a4fd06733716c0. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/ES71G1400663.
Fronteiras Imaginárias (Colômbia Brasil)