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 0x3d9fb0602dfd7043ad8be2478bcfc68f088b1468c03b710a1ea5b5f59c7794ce. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8696e89-8838-4976-9c65-42fab96e38c2.json and https://artists.proofprofile.net/proofs/artist/a8696e89-8838-4976-9c65-42fab96e38c2.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 0x061c60ea10346bc61cf1001bf1257742702af05d728a61bc36b5e58ace6e834b. 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/ARJA05200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df01cc485bb6e6157f13ff04e23f87d755f8a1fa9f18d87d5b902634d1c89dc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARJA05200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492c28c4430fc72d6c387136fb2626dde3c19983488df0cce668d9cae2277f0. 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/ARJA05200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb4d061b0de45ab12b9f880de5cdb3ee24da06877a6dce71a582f91c6a32d0c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ARJA05200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7d43b62d0ea43d3fdf0d10f50acb61b4f81d8c5f27f255fbd81ef53f5a69ab. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/ARJA05210013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4dfa89f72d1b874a9392c6e5f7624b3246dcdb59120896b46509171d741367. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARJA05210014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6343263bc950d420e27f053af7fb8771af1a8fd3336bd182d2b9ead3e1d3af06. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARJA05210015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe636ebf1716586ad16c8634c0246b94f41d249f7e18587ebe1ff4d9c6f4098. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ARJA05210016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313de6f2a77184f5a5c79004f811d9a94a73a034454b72e39e123ea09c80db1f. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARJA05210017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3fdb246bbc77aa400ce2ce8dbc634cd5a7441c243c14b5a7eaee8709538550. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ARJA05210022.
Las Flores de Mi Asesino / No Sabía / Aprende de Mí / Tu Vida Es Tu Vida / Si Me Falta Tu Mirada
En Esta No / Quiero / Por Haberte Conocido / Dejé de Amar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827b74e3793019a7e0f1e0388e1f0f5fff526b71fc1877629ab41afe69cdd273. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ARJA05233004.