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 0x78bf8dc5415cde41cc4fd98efd7815cadfd78287572835d8f856d576ba1506b4. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b935d39e-a426-4e2d-a94c-87ca8ebca891.json and https://artists.proofprofile.net/proofs/artist/b935d39e-a426-4e2d-a94c-87ca8ebca891.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Estudio Sereno A La Luz De Fuego: La Sabiduría De Cantata
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 0x00913752a7aff360e28d3d81a170b8fa91cda5aa35c2783a23bedbc9869291d9. 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/GBWUL2452165.
Cadencia De Relajación: Patrones Musicales Sutiles
Ritmos De Relajación: Música Para Momentos De Paz
Tonos Suaves De Cuna Para La Tarde Del Bebé
Serenidad Pura Del Fuego: Sonidos Calmantes Del Crepitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c32959cb6e6fc73863c3636b25dc0fdcf3c320441296bb0d071f12c94dbedc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWDD2485177.
Música De Fuego: Chispas Y Crepitaciones Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1911c2e5e3fc9efe6f132da1fe18d64aa8f16ca76c2c7b7be3224fc0b6886911. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBRKQ2339232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a62ab4b116fd8fcd5dee42cc40ad3f1a4e493bdc568b763bb8af98f3d2d62e5. 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/GBRKQ2339233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da1de5788fc469a5d5534195e393d88cd2b5029ca0f10adaabe3bd0b3244c20. 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/GBRKQ2339234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05129bf44953af2c2a84cd76d312f665a588e0b3a1105e14cee809f1fd482de. 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/GBRKQ2339235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5675e4d679e74af74f326c058f22457b3f02665edcc73da7b5f240e533c82dd. 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/GBRKQ2339237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cfc84216883cac0d1d5f8f568da078d88e663b76211ff059a472af7eb554f9. 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/GBRKQ2339238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60c679c5732a6570d6ec7d017470f8ad556c7a1c524fc11494f741efdad7140. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBRKQ2339239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f937dc854e66bbe33f8c6145e6b47e5423bc96ddba77b282b5271454c0ca38a. 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/GBRKQ2339240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14ceb20e837f742ec743702bc4968413a89290b316071c1e0cbabb760115a0b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBRKQ2339241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148cc1b6b5d038f1a5857377d79a5ccad343d09eeb457dc5a9f21171c89ef20e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBRKQ2339242.