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 0xd0b13e2ffe61644bd69d0d7e73b6ad2e32b2a40522a0db09af0095afb707d6b4. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd6eb094-b026-4614-a462-a5305ba11c36.json and https://artists.proofprofile.net/proofs/artist/fd6eb094-b026-4614-a462-a5305ba11c36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tu Hoguera Está Ardiendo (Edición especial 5º aniversario)
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 0x11bf009f7c8fc5782bf05dd9bdf16bd33f36325b1f1a9bb349c25f1c54963eb4. 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/ES7220800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76c83af04fba35fb70c5a6529f0a14f60b22d6587b25391d926c619e9a4e2f4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES7220800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4516f7d17e10f2737e1d0d2f9b871fff7b73d1fe5e9b510e371ef38caf87c8b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ES7220800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8972da15fec937d0354c8e429df45b5343d583e835283ff19f2bf56d6e550ef4. 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/ES7220800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78194e8def0c3aa9b6e66a5ac6d58fae6d2bf199a1006c7d41e9892a2c49cfee. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ES7220800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26c473420896d31775d4166f0fc568c648e119b8c3b40ae4c9f32ce5b0532a5. 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/ES7221000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a29a7b26f3c46ca5c87bbf6fbb79b627507c47607a2a979c2fca0cde7309201. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/ES7221000006.
Tierra, Trágalos (Edición Especial 10º Aniversario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca39193a14d194e563da07be154918c5a4b94354bda5c1ba6ef8d4006124013. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/ES7222100017.
Música Contemporánea (Alejandro Martínez-Kinski Remix)
Premeditación, Nocturnidad Y Alevosía (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecaf7f033e511773927c466b798322494116ab74d9f2b72050501ab007b61be. 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/ES6641600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe8d2e8510d6e23a3ece66a5f7ee5c931eddf4558babf0abe3e28b0ae5d2ff6. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ESA011300127.