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 0x68b42d38c59563c607c231c0f488b138034395ce6808192bd10cc0a3ccaef83b. 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/cb971d63-7d24-4d4b-b29d-e0c3c024c99d.json and https://artists.proofprofile.net/proofs/artist/cb971d63-7d24-4d4b-b29d-e0c3c024c99d.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 0x05cfd82946322ecd18cafac4deeb05224fa7445945e22004a6cf2706add6c6d1. 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/MXF368427863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76ef6e35b70e4e5371ffdcc228763087d98defbc7b56dd2f62bfb4bf79ee1e1. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/MXF399401460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd3e8f8efa78c54e1d5729ec83ca542c5a1330ecb509f74f58c8b2c20c58fa0. 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/MXF399401491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72906674136d7caa3560109741c2823dd5c9ef7c27cbffc1b86b9628bea2169d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/MXF399401493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc342b62c6639f6a84ca731a2efccb2272855fe598100182c7ff92bd34df1bf57. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/MXF399501642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4dda3e95a6efdc8155bb20c2778b3f6b9fcf220f8c5711953163594574bb63. 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/MXF399501632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03eb14c6394525b236a417ca1b115ceb2e9b9aa606e63e62dc2e9cdf77b627c7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXF399501643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492b99a1718964cacaa3c30d47811b93b6b9840eb2f8ec08adb300e09dd9adc2. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/MXF399601922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5331284d8833a7806fa3dcf4cdf4eff1bb761b51563b42e677ff7a325600600d. 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/MXF399702154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f11def3d3157fd525ed2e143fb1d0fea642d5a0c8880d2dcc7786a347fdcec. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/MXF368126197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c40684d776c8e6644bb8c5348e64fc63be50a6d9544763b3515390cb322357b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXF368427842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5be430cdbcec30826160390a1ac5f3c8c1096b7ac41aca9777776a83d788856. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MXF368126088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd46640cf3446d84c9ece853e845e17a6a664fe46afe661c7ab99b68f7d9aaf. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/MXF367522062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f85fe18423dc2dcfcd3323155a1259cb3eee8fd9e32728bd20e0f0599e09e4. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:20:21Z), 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/MXF399902593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090e00777afc71db081bd3ad5c240989bdf1a18c6439a61b3ef103b794824ffb. 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/MXF399902594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcd9a482010f109e5e1aa6f8fc39243613bf339f2cf4c74530e03c6b2b26c9c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF390002816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db604264dbba5331c16ae1598ebf4f06061ba238caeb2372eeb3f3088f2b270. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:10:37Z), 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/ESA012180153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f015553edf36f2fea506c30cb4adcc847d3673b09f389cc66de15a0a00dad6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:41:30Z), 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/ESA011678858.
Feliz Navidad y Prospero Año Nuevo les Desea Monchi y los Joao
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50f63616a2769f85678d90c47d54180f8d3e82d3fe27f4375a3a64e5b275e2e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/MXF367522600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe97313daede174d7649f3bcb268a070f70b056dfba119a45ab3a10ffc60efba. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/MXF368628920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8aba0c2bc4fc0249d49af71117c72b72e3a028e87d453cb8da1d4d677fee28d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:24:56Z), 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/MXF367420509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f42b9aa83e400d29f39f18ae373f61be5222d7f28fd30ed0915f10c133eb661. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF368025901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5b234c956db2aff631e16072e9c55febb358f69ac5c89f7effbefb55f7b814. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:20:48Z), 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/MXF368126142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f4bb67e3d9ec8be7cad08c3ed334bbc5d4b1876228ff694d397cf89247cdde. 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/MXF368830037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2de0caf04918b930aa06f31b875fe77f9b655ce8241f7d4f9ad9747f5b7dfbf. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:52:50Z), 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/MXF368025880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd645596b50db14be5fd29c4c7aab76fc38bfc3403d56f95e012b8d057b3ed0f5. 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/MXF368427864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3633709c2b4d85fcbef3af491aeeb03cfaf827f752a486ce2eaa7009736ec1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/MXF367420652.
Colección De Oro: Pachanga Y Reventón, Vol. 2
Colección de Oro: Pachanga y Reventón, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c85d3de989a5ae04b5d0a497e751cabd1921a4e4fa84f9bb1339d4872d39f9. 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/MXF367824663.
Colección De Oro: Pachanga Y Reventón, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ee45fa391f00a64a9005d58cb7a1e12cac10b7d8882148ecfc116340a70b46. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:45:03Z), 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/MX1761200352.
Para Bailar Y Gozar Con Nuevas Versiones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5c627a912ad80287df04394968ab8e8415083ea364ff1f105722becf06b575. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:19:22Z), 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/MX1761200381.
Para Bailar y Gozar Con Nuevas Versiones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32473986264c1ab439f987285d17ff5c616b81d53a59a78bf82ee6196b7ca3c7. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/ESA011678865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8983da8d1467171cbe04ee250639a0017755b4d970ecea87edd6fc606288b39. 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/ESA011678871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02a94f723ea4f04f4e4db3f57bca591830df6fb5f89c7f05dfc6167ba7502ea. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:08:08Z), 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/QZDQH1811673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084f39f69c83708eac28fc367bbf0550ae50ab892faa9ea5009cf03b535f101e. 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/QZDQH1811675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ee10ad6a5abe27dd8098d34398b9ad36a0d27b158a2898ca6565561dff6daf. 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/QZDQH1811678.
We Never Give Up (Todo Venceremos) (Version Samba Moderna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65612b26656b031129ffeea99a07b0f1d72410006adf59041fee5320d2c38fb6. 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/USC4R2333217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bcba0c2a01b7a6ed0b02a184e85333cfd1b5f152806bf7861ad321089fe26e. 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/MXF399702052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bcba0c2a01b7a6ed0b02a184e85333cfd1b5f152806bf7861ad321089fe26e. 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/MXF399702052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bcba0c2a01b7a6ed0b02a184e85333cfd1b5f152806bf7861ad321089fe26e. 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/MXF399702052.