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 0x759e55fccfe9ffeee1cde440253551bf60ff9cbbb1aea21d347ad3dfc9005b0b. 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/a295514e-8ecf-4c4a-b35d-507b54c47175.json and https://artists.proofprofile.net/proofs/artist/a295514e-8ecf-4c4a-b35d-507b54c47175.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b8f4f133e8d1ef237af2bb2b13befc8ef67f07c425ff758f5f8011ad219f58. 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/CA5KR1843569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f32f00b37a357ddef807614b2e11109f0f51bffaa73fcfac3f655a531f38b3d. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:41:35Z), 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/CA5KR1920766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe335d9c9427d642499c24aa991598fdda1b69a6f534aad3cd40f3a2a4a24b99b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CA5KR1941657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6723860a9e6c0f0790191dbf2a8ee7d5dc27652126dc339386dbe76c55e7e63. 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/DEH742032238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02b13ce1339d388d4cc3427b4468a7ced01c9cfd96b547a66b2c9f1b9052fd7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA5KR2323286.
Pastillita De Colores - Moreno & Prieto Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792c3136180ed57eb8ec694248f24dc4947ff01b3931f44e393923a5aa440c73. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2340402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfd64d4357c622d7e06e2e53cd75171ab15024773dae9f500d2c5f64d27acb0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR2352671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b84dcfe0340be93ac885c70be330b4f9f6fccc9ef23f3dfa35831ac143dc08. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CA5KR2352747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daab936e743f0a203e3c8cb5ec0614f0c60ebf96784553524d2dd9414be8d78. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR2371117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf755ba3308cded32c26175187f7f66f3f7d0a2b9c6d5f97dd9b8889ed2ee377a. 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/CA5KR2371119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a41662da45f5deed941ebfcbd999abaff921e0d652bbebf235abdbea607b70. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CA5KR2371118.
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
Fuego Fuego - Daniel Orpi, Tony Guerra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06a61973f1417ca2fa1bd72af5b99a82a813716bbc0b60af91169ad4f23a7ca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR2393116.
Fuego Fuego - Daniel Orpi, Tony Guerra Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98464270cd5e286d240d5d1c7355bac2e2217304c156d90d0a3a55e372fd70c8. 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/CA5KR2393117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae82d013bab38b7df8f42caad8de5e3ddf82ae6bbd4bf297758e9f9e8d87d24a. 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/CA5KR2411265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba702c7d74a2dbfdcfe9a1c60c01d66c7466ddfc20ac6584b09ff97df59217e. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:56:13Z), 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/US83Z2457199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4546d93a2ac438d453e7b7243a9ba1faa80d5d12708b1bf6e295ee50d9680e3. 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/CA5KR2449624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b991e1f56f9499d46812f034a2960c6e55ee44839c300da452de2c1126a42d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:19:28Z), 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/CA5KR2449625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8336aa38e099886422ec01e57773ed12a83e168b8265b9356f9b150770e413f. 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/CA5KR2449626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51146b6b06894c0125f9f3cb8b8872cea423c5a93e23e45c7c4d45fc4e1e3f4. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:51:40Z), 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/QZG2X2413668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ffeb24bf4d1b097c5b4929f8abc1a88704cd57afcaf7215b4792bcdf7346b7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZG2X2413233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d106601bbdf70d9c91e4de6364a6d7bed7abaa9dfa77a033b161b398800b5d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:06:18Z), 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/QZG2X2413234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bc6fa75c02e90a546699c81d560e0e71fe34784adbe52fcbaa5daeedf47049. 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/QZG2X2414959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb34a91b93079606ef4099013e3329cf609a8248272d8a35c23ba293d29f20d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZG2X2414960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe050947adf748050a21070bf89126d2177d9975aa8fc92d7bcc7a83d7f067564. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:16:06Z), 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/QZG2X2414961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd9f1965b62dba2144296e59bfb024a666741fe2da57569cfb86f0ff50b708d. 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/QZG2X2501774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a2e4b9ecf5bd13235fcdb6d62af31f3ef1cdf47487d1209a204e9974b1a5ae. 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/CA5KR2544186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91722065328192216b29fee23c011019ff9d6245c384bba1dafaa24d041a6cb9. 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/CA5KR2544187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfaca4c0804b48e0283b7c6b73c3f1eb9dfaaa325610cbd698450e63e9c1974. 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/CA5KR2590093.
Armonia Universal Mixed by Carlos Salazar & Carlos Bonna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c69d8bd509f659231ba35d188ae35386be9e152d5feb25162a45207efeee9ba. 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/CA5KR2125500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc62f933ca4d9ca5fa2fdcb875866add48b7b3554e6e57bbbf753c951336810. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2371330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba03b281cecfe6e1729fda1b3c47356b110783a83957a0dc5651efec6b7adbd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR2321502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861adb46c7150afc555c90326f485cd8d63e2d0b47894da3254358ef5a1b1e29. 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/CA5KR0019008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b48dec75ee88ac9c53b36df56416067a9184e8d9095350ad66e38f13f99079. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA062289733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9721dceeda1c371ebf93a4ead3ccf3fe83117eea7880839a1324d1f2f4402f67. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/CA5KR2438281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0f2a2d02ed4238554e5d99c4158afa3d8c2fb2193e0a41ed8386ff3b5b8516. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CA5KR2488305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb3cf53d677c0a429a1a3816ca4dfa15eaccb03ce484ae435103013019c7836. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CA5KR2321503.