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 0x576f5ba8bdd66068c13abca5df624212f9faa418d53924592a974f96315d3639. 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/a4ea0176-c80a-4a0b-8e86-cd365e39eea6.json and https://artists.proofprofile.net/proofs/artist/a4ea0176-c80a-4a0b-8e86-cd365e39eea6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Caemos Pa La Disco (feat. 97Liga, Negrito Pierre, Aberolau)
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 0xae0ab710ff39f6f333f152f4b3686cddc9becd530fd11d696d0423f16e3b4e0f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/UYA522200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16913903cb36f7c8bdfd588f77dc480a690fb6069efb1e1e898048bb8ba5f9cf. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/UYA522300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c3b0b59537fe1bede4520d91c9c7253f6e4813e5e1c3d2590ed826dcbd67cc. 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/UYA522300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603396ada0b08a891ed1e7551153be4ee3c2d54ffeed83659aca049f95e4f47c. 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/UYA522300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d2249c7541f93b71414209cbd8c4d0e15a993929c8c3431d7992446ba4330e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UYA522300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03113e4ac42e0eee4f1a1e8eb6257b3a53d4532b3c63ff4b879bde79b9687d4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UYA522300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9fb8cc606dab608aebc9e940f812d20e8345baeac9c67f9d842a30aca868c0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/UYA522300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5de2a575adf7fcfccacdb918c1fd5104d47c9afb1b5f5ed3045dc36440c79b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/UYA522300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483e95c6e80563bffbc48bb7a3ecc317e3a5ded95eb7507ef29159e72e140523. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/UYA522300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda8c8ba5959b512586a94199a2f8c47621fe7c927d59d044cc1b602906e2ddd. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/UYA522300032.
Siempre Mono Nunca Sapo - Remix (feat. Nicolini)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92cbedcb408065b33b856542e37d464db1a60b57b2e0378e5ab7318df8cf749. 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/UYA522400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9eff3f2fa27ace9d450f3695c2ec1a152a58fdd1de358b5d6dec4aa9f6c330. 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/UYA522400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe07733a779b3d9709c1d20c5f6fa0c13799aedffcbedab1e5ed3821682ca4cb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFZ42516486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe07733a779b3d9709c1d20c5f6fa0c13799aedffcbedab1e5ed3821682ca4cb. 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/QZFZ42516486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e4ddb8e3721c0eb7ace28123684e5e1af5c7bd5338ee1bf05ddf7b021b39b8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWDW2556569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9b638a186d5cdeaca65b8fa7e350d627a657ac007aa3d17249fc16ca412f98. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZYFZ2521003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e509aac6591f77b9af51db816f943a7b3e02bee5221ae0d6856f135478f179. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AUGBT2303712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7802b2a1eb765ec2736af58d0305e0f5da2410f838553f41716677fe29bc1262. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZN882513817.