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 0x493fb271e3ae33db20f0f8f37001a465caaf3b4bda0a7a060cc224a2d6a08b42. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8811816a-c197-4387-9fea-8cc434bb010d.json and https://artists.proofprofile.net/proofs/artist/8811816a-c197-4387-9fea-8cc434bb010d.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 0xcdc2400170c2f72a2d5e3ee77ebee11d88e696fd2001fd1eb56da275514a922c. 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/MXF146100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d8bee4309e177de6c6514306424dae8705cce9dc51fb2451a4a8547fd2e419. 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/MXF146100231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca5099f6f74b0eff27004c40ba7a37668448e158532f910301c457000113690. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/MXF146000094.
Confidente de Secundaria - High School Confidential
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f3bc8d94c5469b11ab2fd3ab80806b7164a3a580cbdb43703d8eaafc9af9d2. 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/MXF146000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd35afae9286564bbb333fad5207b29a94ae20f996672ae6c93a085a41a64d64. 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/MXF146000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651ccf5620d650542d6f19f94350aa1de47538d3716bd7688df98454af370fc3. 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/MXF146000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4054c5d6efc4e9a67cbbdd673c6939cfb1f5ea4ebd17a513499789fc4a3b18cb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:42:15Z), 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/MXF146000095.
Buen Rock Esta Noche - Good Rockin' Tonight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7ad76bf5394bf6edd79a2367d77b28bf4b3099294cc8d9218a4327273d052f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/MXF146000035.
Vintage Rock No. 46 - EP: Rock And Roll Trepidante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237545625145f4f5dad6c906be2ca1a5ab16ee6bd3f22ffce6ab6bb2a59b8ecf. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:22:58Z), 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/MXF331111406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24b6ea259c98e732a7aaf07876bd3a5798734236700be0b89566388ee360172. 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/MXF331111413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d2d6067d7dbcdd58b9e1e975fcda2dcf287b10753ee9826009172fefeba923. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM7281544422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ecca5ecde014f18a2c9f646157f7a85e9ddd861973450a4b3aed14197eecaf. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM7281544423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b9153282e5ce04af67ce8ddd46e1efd33fad5759fd91374b9b8012c59d391e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM7281544428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1399d1a4380127dc0e5b61517f868e297b9446c149eed811d94593974c99c82d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QM7281544429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bb4ce3c5df9c7854e31326b303705c2b2bf7359f2376e6db33766f52a22be4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM7281544407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa98cb14d331821e4a14ec343020631362797df91c6dd9de50d5db99e9930f38. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:00Z), 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/QM7281544408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b48fd2861c84e857e73a61c083f563bbc581d69094b641a4a4ae2f82a798d71. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:51:11Z), 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/QM7281544412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7637fc2916a5134b2d04964062e24c0fac5afcb7dfa64b27f25b9d6e59d4e7d4. 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/QM7281544413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ff54203588db272e40733fa2df2e580fdf2a088771742d2c9257180107493a. 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/QM7281544416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538d1be02cfc24d3c630aa57ddf5be42e1cb7799765c863dad3249a5e5eddb12. Chain 2 (Bitcoin): anchored in block 956809 (2026-07-20T11:53:21Z), 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/MXF550513922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c509ac3b85c07288d27be4d7447cde60ed97cd12cc26876fa2b00e4ce45f20. 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/MXF550513906.
La Gran Coleccion Del 60 Aniversario CBS - Los Teen Tops
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f3bc8d94c5469b11ab2fd3ab80806b7164a3a580cbdb43703d8eaafc9af9d2. 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/MXF146000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8b2c223029153638bb8feedca9600c7854f778353a5d5c4057298c91208778. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:33:06Z), 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/MXF146000092.
Muchacho Triste y Solitario (Lonely Blue Boy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65a8e35fe3fc08155c037ed94cbaff4d5916484e0fc358e2cba5a51b6769123. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/MXF148500234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004fca86b8ad0583ece5f661feb574a4a611ee51aa973acae55140d40721ac7d. 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/MXF146300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad16a91ca0536a4aa090cec3416feb1ae7769bc92ca31a45e714cd540e210b1. 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/MXF146100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc798fc749b4428e180cdd1bcb50fac38350e92b709dcb342ee2402e002a62a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/MXF146300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4050a9497160f9eb5b3f5db25efdaee1aebc3ddbc1ec0ef1bc40001380fce4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/MXF146100251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dac129475e22b0244e97970c3b86286f96d2420175432e50959a45b5a11e0d. 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/MXF146300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4748e9eabbf6da3ad63411279ce7a987798c279ddee3878a0490bc40ed3da4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/MXF016300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc2400170c2f72a2d5e3ee77ebee11d88e696fd2001fd1eb56da275514a922c. 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/MXF146100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237545625145f4f5dad6c906be2ca1a5ab16ee6bd3f22ffce6ab6bb2a59b8ecf. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:00Z), 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/MXF331111406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24b6ea259c98e732a7aaf07876bd3a5798734236700be0b89566388ee360172. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXF331111413.
Los Grandes Años del Rock And Roll, Vol. 2 (Los Teen Tops, 15 Éxitos)
Los Grandes Años Del Rock and Roll, Vol. 1 (Los Teen Tops, 15 Éxitos)
Los Teen Tops (Leyendas de la Música Popular)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691b7a0484941f3a1b8b9aca4fd00ea473e144859d0e638a058c69aec16e4e6d. 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/MXF146100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f5b880cdff67fab4c13775d395493b97dcd4ff84391f24883cf0a7628b343d. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:04:30Z), 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/MXF146100210.
A Tu Puerta Toqué (I'm Gonna Knockom Your Door)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2a891f157591493a03f1b56b5b2e6fa6edb2b02a2df13d36d90a80f8e89f96. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/MXF146100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4050a9497160f9eb5b3f5db25efdaee1aebc3ddbc1ec0ef1bc40001380fce4. 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/MXF146100251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d8bee4309e177de6c6514306424dae8705cce9dc51fb2451a4a8547fd2e419. 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/MXF146100231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe423410b5f5f5599b046e61c4a11034d9229b0b5a1c7f885137795c34104badd. 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/QM4TW1571399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aed7ff345f6938038851314e7d64c2ef7c249b3d19f14d3b46034ca41989e6b. 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/QM4TW1571420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2ae91d43ab5e652a70743a70624f2549e2e4e721747adfbb0d5134c2fb0911. 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/QM4TW1571436.
La Plaga - Good Golly, Miss Molly [Remasterizado]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ca02c8350fe3696baf176bb271c19219b3c388bc89d2c9dcbd6b12f71cb1ed. 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/MXF146000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2438ece25563357150b64b0dd141c8005d444c17291fb6bbd0f1951f558542f1. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:13Z), 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/USA371197087.
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