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 0x6ecb24b1989ac6ceca36479605fbfac8a1b19eb4dd5680322f72ceb1f4af9cf0. 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/ae375fb2-39bb-46e6-a219-6b8c7a178686.json and https://artists.proofprofile.net/proofs/artist/ae375fb2-39bb-46e6-a219-6b8c7a178686.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 0xf44f1410fbf2eda02fef5fb34a86c40f49a6f5539224b572fbaa392d1e27bcff. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNJX2388672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca512444ff62c8bee45ca10677422a90e988c088f84b61a62eb936f79141c3c4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJV2479006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7faa0ed4760ad15fbf9fb146b85d47deb4766d5b0d07477f580024aa2a038a58. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62144077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed94b8489e9373096aedf7e0d9d74a2438d8579eb48762a02909bad090e8cb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAFJ2156802.
Latina Fever, Vol. 3 : Reggaeton, Bachata, Salsa (Pure Caliente Latin Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb7c2c243400bb79bc05304c0c0797bf9dd58d474d9f365e96c29a4cb79475e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX1963552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e78490726626cc4cdc863e99959c379e33d78af1f4ac0e9bcc14a017ff28b5. 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/USUM72120431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bec26e5098fe2bbdcd30e897dc954c1b6650b1d82d84b0a684b26c36ac770e. 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/QZTRX2107487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d073899fb1043eeb6bb3bd9bd5cfcfe2cdbfabc4ce63f917f36d9e0475eaf7. 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/QM6N21941660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b911baee18121f884e44ac1310c8601145b2902f7e965e0d5cd8272f994428. 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/QZTL92125494.
Vayase De Ahí [with Juanka, Ceky Viciny, Pacho El Antifeka, La Insuperable, Haraca Kiko, Musicologo The Libro & Pablo Chill-E] - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14a01239a93b0ab397c1ab09c96e5cb84003ed8e0d5a1d7661f2bfd38d9e742. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITF252000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e766c920a226d9cc2c9c5b357504d9a9213ad69be96d37b987d5dfc94182ba. 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/QZMZ92389671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32229c1406005f6c057c4277d332af94f2ed14c0807902b3f051d4c6fef51c3c. 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/QMDA62163315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8132f5b17902a6425c97e36ed69cd3c361b4ae642a8078c3eff38fba934a92c1. 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/QMFME2187001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed94b8489e9373096aedf7e0d9d74a2438d8579eb48762a02909bad090e8cb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAFJ2156802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688ced4333098840beaa78d78d57486d5151f808b1c1cb456e53c29e2dfcc958. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QMDA72285970.
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 0x126efbb26a10b93b6b8cb7460b09f06f7a3016c7b9bdca2c6166729ea2f8fc4d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBWUL2024328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1950a18c20ed9920cdb4ff62b7083b9d2c2992bd14cb9d12ddadaa7dca471bc. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZ5FN2371556.