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 0xadb873d4a43aa1e163c7e0eb08c87bae0be4101eb052caa8ae05defb04eae998. 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/86681813-5838-4e64-a111-37bed688f4b0.json and https://artists.proofprofile.net/proofs/artist/86681813-5838-4e64-a111-37bed688f4b0.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 0x45c84f0aa4187ee514d10253143847bf2af1113ef2bbe914bb045ceac6cae209. 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/QZAPG1716567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd81fdf71f5cd2450161fe7d0b107b067d4759cad75274951f924db66ba37e76. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZARB1892381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eadd1f6672feae0f9367b7714699c5447a9c63e31216295a81e359a7fcea1df. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:33:25Z), 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/QZFYY1928927.
La Cumbia de Alfredo Adame y Carlos Trejo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd99a3f31e887df17b577b59a5bda7d6fc1f4567d6bb2e3aef7307332b20665. 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/QZFZ21996994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f07f0b7e26b249063a34b16a40ec9318e5628400c28c933ce1bf1fb8eed919. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZNWR2153928.
La Cumbia de Belinda y Nodal ya tronaron
la Cumbia de la Pelea Futbolera en Queretaro
La Cumbia de la Tiraera' De Los Reguetoneros
La Nueva Cumbia de Adame se volvio a pelear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac356519526d4f3fb5b9a041e7a097dc8ef1e1a9bfe3bf5ba7c7302873be957. 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/QZNWT2218973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddefab6c5275460c2a1291c4c65ccfc079b21ab88c1ef7ada43af8fdf79eac5. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZNWW2278734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4545cd5a4fd60828d23b4fe5af6976d09f8b6d06ce8cad4aac8db8d54842a38. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:19:20Z), 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/QZTAY2244426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856abf6fe2a3ebb3507bad2de585cb52fc1ea066a3f48b140f4760e03b1fcd77. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZFYZ2395821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201f28883b7ebdc44303d9c10a862776a81a24aaa9b0a2b4e287ef46086c81bf. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFZ32345653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6317da7cc18ecbb0a34bec0893a36e4d45599a327f8f570bca0ecdc8983d23. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:29:59Z), 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/QZHN32373546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bd677477ce951c43c751ad14ba087dc2c4ec64814c86c651a93c0eb892a17e. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZHN62387456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bc2468739a0dde29809fa97e6b8dcf83d899cb872839d3c27dd9438bb4c242. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZMEQ2327295.
Mister Cumbia en Vivo desde USA Sonideras, Vol. 1 (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cff9a1c3d9190e13d81a04e673cd540a8549bcd0b76a49256be36709fbc602. 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/QZWFM2340069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c2840c0db6c64e83042611f506588d2054ca8fadf00aa5043276c496be07b9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:20Z), 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/QZDQH2411269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3756f4ee6d8a9e00e94f629c42e984f7f2a659db9e684df5fcf209a794014f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:42:37Z), 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/QZDQH2414435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb548da7966e5c18469da79fe20dc87428eaa1c3af913227525141e47eab451a9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:31:08Z), 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/QZDQH2421109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d23787f55d3b5c33ac61c5b541160b730b453f7e6a75f8cac8e6ba7f3c0a1bc. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:45:03Z), 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/QZDQH2426531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dfebeab4b29c5f933a3bb116f0f169c1ade2e31d9a436a97016d6d88f93b8d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:08:35Z), 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/QZDQH2428294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d3291832ffde3d80973161e5188f3d16651e2be16bb6ea1513471dc34d3de1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDQH2430419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713f2845e863373cfd78e8b4350e9341c02441f8fd2c78d588578dde49445c12. 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/QZDQH2432377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a6ee1c2c2f236e1bde7c2e635321c1c1c45d7c9efb6698067724b4a95c1e66. 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/BK4DA2463549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19e4704fc6dd3deea32db52d8c749a59fb2deb7ab81177e90ff11ead31c7125. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:52:23Z), 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/QZDQH2442477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519f5dd70ccb87ad8dd16e23287e7c6ac324b67db93bb85c790d499bc666d6ad. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:48:59Z), 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/TCAJE2569098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a64b399048dc860551544314fdbde601d1a44584336cc09547dee9a1b59059. 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/BK4DA2502730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcc27aa150c373bf6e6d34d5872e55ecaf9e88cf38c29115acf43576776563f. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/BK4DA2502731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d001acaa11dbc490b6c7800a94012611d248943321a63c0633bc56ffed9126f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDQH2517331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9268ab4537fe584a8540fba8a253eeb73dc4789e07c3a5da5a76232269043f83. 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/QZDQH2518643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9461840fe8fb3c9d3cab65512471089a3986d7e4801e523d695e58f312d58e03. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZDQH2519520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6f4b0514e59941176a76884171ae6362b77ee7d0c749edd9c74df4d074d59f. 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/QZAKB2514769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9707e8eaf594e1f9808440425efecee3a2b2f959eae89f932bdb44b7a373aa38. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDQH2525025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31cf2ee3b67c553c46f28fda687b533f596dc406a689b4f4c59c42fee3b9fdb. 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/USANG2544302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029bf00e7f1a5f5d1a67082f2f746133e05d6f47c2048243c45e077a5033e19a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USANG2545071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5043a13b6c566a09580d3cb085de427ad503480d7ade7bce767e6300aaba9a. 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/MX4972302117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b36aec182fa7faf1a8c4b4430d06a69f7b0055fdcd2211d7b79a087f960c0b. 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/MX4972302451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ea8c9101f192596adaea37f5d67b72e510aca063386fe2e3e0b40c27d717e3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5AB2245924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2dc0eafcd5ae5515b7302b19a69e5007ec11df12552ae164d683d7586fedba. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZ5AB2245929.
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