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 0xa0cd9301b5f2b7b117336ad89c42aca72ddda0eecc9bf5845b7a8176ae2ff327. 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/72dd8b50-2fc6-4699-9384-a304d5f340e7.json and https://artists.proofprofile.net/proofs/artist/72dd8b50-2fc6-4699-9384-a304d5f340e7.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 0xc63a63c8d36e9cd51185a8c399985c09b2f398567dbbb9bf41250775c7241aca. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBKQU1732119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c9f3a043b78f5ee59f153e77852c0872a0e11c455650bb5e6adebde8a4c6ef. 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/GBKQU1867030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb82e7fb99b023be30e680b09ff0581191f4a8c55e3f160b93725ea12a8a44ed. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBKQU1941091.
Sentimento (Inc. Neapolitan Soul and Luciano Gioia Lovely Mix)
Soul Charge (Inc Luis Radio & Roger Garcia Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d565061ea49fe5e82840768344846d7bf58aeb294c302b52bf4aa70f9cc0b38. 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/ITBQY2201100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d07edc35891a3cd0ddb5d467b00471e36d58e70b882b30dced6b759ee439d7. 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/ATGV72100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9ac29c1f73772bcdfd8503e7e26b1a5da8491f940b71fb4ef27155f3f6f2ad. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/CA5KR2310281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f1e98bd9529dc5fed414ee07e599fa990f75dfb8cb79791e47b96c434aceba. 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/CA5KR2352496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed020b1fb831239ef12daff0821c5ca9cb68208f29f83bdae1ba37923b8a4c13. 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/UKF4C1603699.
Danger Street - TSOS Percussion Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd021cc5f7022529363d7497fff5e590d0dc984fc03cfdaeff0300f1b1dc6d1e3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CA5KR2391356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eca70e21f627416e25ac921a2430355cf6eb0f3d13f556735050edcb9a7fc01. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2415039.
Jazzify (Inc Luis Radio & Mijangos Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c1efbc9e35cc5a7d1d517f250726bfa27b76c1e926db13e92c5dedde19e9c6. 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/CA5KR2442357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754244e599e5ab7ac4546ad5001fdfe8c751d970e58237e8bc1203110b5ebffd. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZF251800382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449e228556a005b4d650ce3302acd1093f804f11548c70acf73201d7c2aae076. 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/ITX4M2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e4e5e0c18476bc6b128e37d8dad8f6a9837d7d64a9a34ec731a130379d9562. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/CA5KR2510614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f021d1537c7508c3821a42b2d1a1cea9536c8089d3353b2fb40627e4d6a6f98. 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/GBENT1752632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0499cbbaa318be00f9d020d974c13c0a1da94067b61a8b59a2cc4fb38757599. 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/GBKQU2510257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7ae9f47508606b4bc589d6f2446f0758d2105de69aaba2fe7d198c1c39e05f. 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/CA5KR2520032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b61b5c0fd5be6075a218262797e6d316cb74748422d69316b6f5b6c90c806f. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/CA5KR2542717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d89f293a360bc90f4e4b13288c841e2e1296045aa70c0e5342a3fbc182889d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ATGV72100085.