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 0x6d2bd3adffa950fde7ee9b30b3a5503af450888ef089ccbbf3a89003be644a80. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/840a6b36-7d0f-4c9e-8311-f797cafbe961.json and https://artists.proofprofile.net/proofs/artist/840a6b36-7d0f-4c9e-8311-f797cafbe961.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
RAFA SÁNCHEZ EN CONCIERTO (Sala Riviera '21)
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 0xced3fe8637c0b9d47797f1fb8adfdeb043e1a9641f3db0d49602d5de4866d00a. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZFZ62172171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf465133434ad62e6867d99032c69910216c00f547c7d54d31353106ea0060088. 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/QZFZ62172172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648fe5dec502a1102afb651b8c74a48f5714f34d0c671484845451013e998777. 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/QZFZ62172174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134c030b89de2807f1515ad0bf86aa90b51aa7176d7efda1f832111748780b1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZFZ62172177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0080cb4c07321bf3a586d26644b1dff50a3501fc6202015592fa55d9a56f0788. 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/QZFZ62172179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557c7b6d28154c00e4acbf704851f2a07a1764846096a397a758594adaab76ba. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFZ62172180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82206b8de211fe26ef5f3de0875d093047c6d9923a83bef5d4a5040417740a12. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFZ62153068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1128e6848730899bbd57655270ab8a97add5e5b799706ad4fa444cb5b0cbc0. 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/QZNWS2176461.
Lobohombre en Sildavia (Pedro del Moral & David Ferrero Remix)
LOBOHOMBRE EN SILDAVIA (Pedro del Moral & David Ferrero Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96014c45ca1617f5e638d321838af30008a24a571ed01116bf057b0243d248f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:58:43Z), 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/QZWFG2381733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a12296ae3ace7704e009b989e113bfe5979805faa4f455d0361d0096537ed51. 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/ES31E2404077.
Las 100 mejores canciones de amor del Pop Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf926ba1e1fa3c57f03b3d13113c8d4c19d127812067e5171fe8ee473404d54. 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/ES5159003006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf926ba1e1fa3c57f03b3d13113c8d4c19d127812067e5171fe8ee473404d54. 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/ES5159003006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8dfde4dadf4187b008d2b2b4ca394e309a468af501a190b3e9af2a68d679b3. 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/MXF011700220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf926ba1e1fa3c57f03b3d13113c8d4c19d127812067e5171fe8ee473404d54. 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/ES5159003006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c8ddaf6ce211d663e82efe1617932eb3f912734dd396357ea03566afa68dd4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/MXF150200085.
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