thumb|Leonor Watling singing in the band Marlango is a Spanish music band deeply influenced by Tom Waits. The members of the band are Leonor Watling, Alejandro Pelayo and Óscar Ybarra. Discography Y
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 0x19ba00c7b253bd7d1e115b92092d77f8390680efb7b4b5041eeed564f0f9c2fb. 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/ec1e7633-01b8-4086-b0f9-2164349db468.json and https://artists.proofprofile.net/proofs/artist/ec1e7633-01b8-4086-b0f9-2164349db468.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 0x0c6371506b25364d64e0fc07839c7b558db87abbb675de6c1fe945bdb98b0346. 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/ES6060432701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310803d3e679bb0d0720b2b336d7d176dfd7d6017bcebb89bb74378ebf7dfd20. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES6060432702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe530c0fca5e002f904cef7be347e58a664074191c52ca70830e29214f18ac34c. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ES6060432703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73202821c1e2b072650ed482db545f68a3306c1356d56a7cdf6986da1e8d1fc4. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ES6060432705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec261004e30e9a5138b1a447e0479b0a45caa3beb0fa9cfc60c8cd62bd44cebf. 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/ES6060432706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4307ffc3ca064bd4532df7fafcd49721e3f35434dfecd66d80de65b8795b377. 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/ES6060432709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba64a1b5e4958cc18be523167c050a606f67d2971dcf41d56b86d8e80827fba. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/ES6060432710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95226c912d0ef465e34fc57c941db3fe2a21bfe579b982e6fbb3a8dc28f55c53. 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/FR6V80410087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f39f5cea3d64f32d0c8e5503180da63887aeffce66b09c6c8fb90edeccbc6dc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR6V80708811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a63c263412a832f049b01e7d1be276a2fc4d447507b5ac7d07620a58f1bcff. 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/ES6060539001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ae2fa5ebbf4a474f7a7bbf0dfd3c2a5cbc989c89ba587a643544a34d660aad. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES6060539003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae3da1fd44eb3335e69f5e70962dab22d87a9ae6c0a27332746a2796e985096. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ES6060538601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42521c912adb8a15671ae929dffe734789d5fea9c04911419d9e09e4d62fc9cd. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ES6060539007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626f2b9f6b75cdcc2f0741f483d0b3576bcdee9402dfb2f2a3f537962f23d959. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ES6060539008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d50d8a976a6b3841a4c46a0e1b1b30ad148edaa52b34d048982d19c29b8039. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/ES5700703764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecccd9894f5e35080a866a445cec10170c71568c868a2d31e795a3e43436688. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ES5700703958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0820008d9d63033a48f88cde64d0f8e907982c1b8a1e0b61630ed195b4770204. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ES5700902661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4007e467a08beb13ec06e0eb6078eeb0c8b63dbe504ea812dd18cb788ac4db. 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/ES5700902665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e63da9f395b3b3fbed5f46dd4148336b034777d28f7902a2f5fb9999df3cff. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ES5700902663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92d24a0d68f7a15f86e0ba56fedc3cc369472ec71782f248382c9b5badf29bd. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/ES5700902671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0f1c371bc7f245765dfae665d60f38beccc5e6dde882cc91a912d51e31617e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ES5701200243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b34077be63e1c570b4c0aac5dc1fe039bb8b6c270ef1fdf5ae910f189ab414. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/ES5701200234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43db1d3264c20005d336c4b9eec34b027f6de4dd9aadf5cb24e50006ab012354. 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/ES5701200241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3183b69dfdd55167514b817e29c4ae9bae19b40b6447644ed8cdd34328ad37d. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ES5701400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1689aae0e7d41d9ba58c73ddfe0dd4c67efe64ac75221a0fded24cb69f0e1ea9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES5701400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfc3343c54cba3a3bc24f5ddd1605887c2b361ec347ab753c0456b4d88983ce. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ES5701400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc3e3da7737397063c31144fa83010cff517cb50c7b7dfeaa7b72c4a2b64f9f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ES6081810602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380c378b1333853777531280b5429fcda9b61be795173a73850a17d46faf0c18. 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/ES6081810604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9156080f78c2b02dd0f54b965322eeadcf57f743ac5a5054b1b4b989c63f37. 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/ES6081810606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac521b55fe40b1181244d907ed9ec0031b83c39e98d86000efa86102b194124a. 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/ES6081810608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d245fa03610b2e50d122a88b9ce9cac3aca0a7794f165a3158dd5425588280. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/ES6081810610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970d64d196c7e43d09967c4f8888bdffecdd0ee1b5d29479312c1d6a00bd6d20. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES6081910706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afef2eabe9154c3be1c943772e3116d17f82d1457aeed361351508cdc01de93. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES6081910709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec597b09bf6a907c7cb849ff33daa615bdb08bea57c79d5413b7973977b602c4. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ES71G2143372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80205ff691da70fd56851410c2d480c4c5fadc68ec872ae780b7b9070ef8f151. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/ES71G2222611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18196d94027d01a3c3b0e70315bf8a1c1e501dbc7325deec8c9e5fe639c6cd3a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARFSB0800821.
Dar Es Dar (feat. Marlango, Gala Evora, Ariel Rot, Mavi Díaz & Coki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a3db4d5932421af37c95e0c0ebe972bb3536b264a7ce6e6944f0cb82d9d368. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARFSB0800822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cbb7e26bca36811c7914e14a2ca17574f155d2bef92e988a1380461ea9cd78. 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/ES5701400399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f39f5cea3d64f32d0c8e5503180da63887aeffce66b09c6c8fb90edeccbc6dc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR6V80708811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2715cbe656b4872a6384159d7561cb826e225543ccd4146d2d17bfefd7bab5fd. 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/ES5700703766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9192f046da8cdece0938143ac027213eb3bfe51bb9a8c7d9f23835edb9a55ae8. 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/ES5701201419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2465be064445114c01bc75600c0f03c6035956d151c7bc66a742bd985310a97. 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/ES5700600630.