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 0xbb8bac1b84e55352ac268e556a48616a7345a81ab60656c379e05e4ac053015d. 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/1a379197-5f17-45c5-8d29-2e327c18b5a8.json and https://artists.proofprofile.net/proofs/artist/1a379197-5f17-45c5-8d29-2e327c18b5a8.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 0xec5e33bb445565e45d626db35da61d049fc938f927aa58ff3012dbe9ac292be7. 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/QZMER2136622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826390aef607eaf7e97c6217a59e26055b5a053b2ae6b16b47a1ae9f9de535e9. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZNJY2360998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87936c54fb4f8296d081c8c2e85a301461821d230d803a00e1ed1c2973e6f6ec. 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/QZNJY2361000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d55407d6d7b5b6d259110671b134e8308fe4f913d27b7ce4513263ddf25f856. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZNJY2361002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183f5eab4d4926ede285e3b6fa5a5e8bb9eef366f04832238553841a8d9c6fd8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZNJY2389480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e75fe3b1a81b5477e68c47ece81478ccc2fe5fc89618f5971134854198b853. 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/QZNJY2389481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1fa8bf8272263b0ee5aab29fafe59884820e96f5b836cbedc0e3d114fafeb2. 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/QZW9L2301282.
Mix Juan Gabriel: Asi Fue / Por Que Me Haces Llorar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf485e04f0ff56fd51c5218f4f2df1b3cae2af4bf352e0b89399bf9427e5391cc. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZW9L2341899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1204249d8a550f48fd19dd006f82b1eb7359eee702020435c7f72b1e4c348c14. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZW9L2365962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5fbeb737524f53bdd3544f522bfc4c03b50ff10df4640c60cee60c80373c51. 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/QZ5AB2430576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bace97967afcb40b12f76c2e6affc93c3751edafd2186625823f8e3946ca96d. 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/US7VG2443649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d47e77a8959f359038a3a1d1351383a45f35012c3c9982e82383268240cfe4d. 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/QZ5AB2430580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c26fe967eff3ad2a1a365751e57ca132c9f6d27cecc92e9672567702d56b86. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZMZ92436232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f047ac82f468a3479d65a0b08a0f49b75f473ec4ef0dd7e4e416e9defa1eaa0. 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/QZMZ92436240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46232653f1d5dbb4679bdfe2577a54df245d4b6aa74e7accdb624f3210cf963b. 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/QZGLM2479028.
Popurrí Carnavalero: Zapateado el Toro / La Cabrona / La Danza de los Chinelos / La Raspa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5eb1c28f051cae8999c96f80c544b653d420829cac8160aa6700dcbd159ead2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:59:54Z), 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/QZGLS2575821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31011a184f779b70bfedc6661689b3bcded981682291ef67f635b3f9fef1a72. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZNJZ2591300.
Trio Imperio el Único en Vivo - 20 Mujeres de Negro - Antología - Candela Verde - Casa de Adobe - El Paciente - Lejos de Mi Tierra - Oye Mujer - He Sentido Amor - Al Ritmo de Mi Violín - Nadie Es Et
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68d544c2597d4a6b31263a04a5f56fcc3b34da97f53bff28c7d8fa60d20910e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:57:58Z), 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/QZTPX2508360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096802075fe5c448e33e1a0f9e8b8d2d64ad5d0b6a53d1b7e1c555a1d26f229c. 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/QZTPX2508361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e147defb78e86a6c58c530cc65c5bb6bbcf01d40a3c5d6e3e90243875107326. 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/QZTPX2508362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9152c287a26aa4740af3218240d5188ced388935ed95ec3b39fc6a64cbcd0051. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTPX2508363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbd52e5a934d2d97cf8e7dc4bd0b3832a449d11bb5057c855eb96c20bcae8e2. 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/QZTPX2508364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2a1ad6026c2958e37e16e6aad0bd532c32dbd1ba95438076130b83bffe92de. 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/QZTPX2508365.
Oye Mujer - He Sentido Amor - Al Ritmo de Mi Violín
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adf88d2bd5163a5d7e3cae50f3aa575f6689053a9af5868d57f78cc6ed32844. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTPX2508366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941404492bf902b8099ba305a2a3c2677ae39fb978314ec4705b7537046dcf4c. 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/QZTPX2508367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449fe6319e253e534df11bf680815f1cf296df50f472f23ff55faf6a0e0aefe3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTPX2508368.
Ahora Te Puedes Marchar - Cuando Calienta el Sol - La Chica del Bikini Azul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fc5d4697a29375e4467dc8ae63473189ecd4bf7badf7328e51af1491147647. 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/QZTPX2508369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a41e89226d7ef9bcf7b6e1d5031aacbb666a0ae132e8a92e40e886a1f013ba7. 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/QZTVM2522500.