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 0x39cb06e86d05709c54f57b65472c47af9c5ebc6a85d3aff2d3ee795e0921f108. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a940e26f-fd2f-4b61-b9a0-aa4fad14f362.json and https://artists.proofprofile.net/proofs/artist/a940e26f-fd2f-4b61-b9a0-aa4fad14f362.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 0x872fcb157cd6ae008ee0653abee75f1d85e979c6a583bee8b30606c8e38fd4f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USJ3V0671893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c57136f7fe4a4a9d256b17b88b9e43d9f4d0fa17fb47007d0fcd12e27daca3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USJ3V0671895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d9ab83ef565aaa386e647da057e663179a21e08b67772ea949d234c5e644cd. 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/USJ3V0671896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee6d066bee232a72e2637eda4e579626d1697c651cb9337b398b6861470cc03. 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/USJ3V0671898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb9a64adfe3f2214cd93fb024ef71982a3ef98817487bcf0a1ef248790e1afb. 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/USJ3V0671901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fedde6622c8a596fd0ce9b211700bb1791938cd5ddbaabaea8e750712ec075. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USJ3V0671894.
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 0xe82b8642fcc9ffabd89641f28c9511caf4101f046e97ef92904d70819bb9a813. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USJ3V0671897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c474d6c64952ffe7a64646b5edc8631770e539a8efde23769e8cd06119bcf9a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USJ3V0671900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bd70e2078b0212714de4591d1e6a44cf77a0006ae16d1a630720cdcd7609eb. 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/USJ3V1083173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd94f6216a77f1d6d78fa2d39c853ac15f463abeb3893fc9c9f2d959ef7db7dd. 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/USJ3V1083180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf912c74238e4ba5baed170aad4f864f851b4913ce3fbfc5c5172937fc9b9ab0b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USJ3V1083179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbe620570095462535137f904620d5c0a974be6b49d95f8bebbbd6a7195e9be. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USJ3V1083181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4100c266eabd7928de6936895bacef752d4c82aee496ea25b3a5acf65c91ed51. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:10:25Z), 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/USJ3V1058047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932a8a7c767adfa986318f6f825b455c8eb72dd1eb495310d5530eb5303a34ec. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USJ3V1058051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c78eb9fc3fcaa22ed360f0d24d251a54277a4ac5c72b064121fb97e3cbf358. 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/USJ3V1058052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0a2e21cae8f0a73cbea1862fbdfd45a7cb1b05dcd610d4ffc7213b03650fcd. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USJ3V1058048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12060d9a682b72f7a88a1543794e1ed22b923c4f7c8ec03b825564761c58e4ed. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USJ3V1058049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4d9f7d4d1fe62f3df1c1bc5b2db0ef73161bec228fd899b792986a27205531. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USJ3V1058050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6effee0192eb408507397db12e3883f34df87ad24345331c7b3eee34238e56. 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/USJ3V1093447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60568487a2fb29a378bd0ee3b0744d751e44e34967d495f4acc4cd3b2b50268. 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/USJ3V1093451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934222104946ff396beb45a07caf6e071335bb79c8062aeb93f6f70f4d449c5b. 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/USJ3V1093452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7de5ad284fc6b0149a2cc64b576c1e186461ad79e90a079b8d03bf4a9884107. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USJ3V1046679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1989cd5f49d627587279e36c291fd9eb6de7d667293b517bdedbbbb8996a952f. 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/USJ3V1046691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0650f79f997d63a16030feed5d6329f35371f348f993571272b617ebe4b5df41. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USJ3V1127583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf51adf91b7083f7800dd9ba5128c0bdb86027d1724dbe1e6c12645308e7348. 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/USJ3V1127584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd951f0fe5fd5a532f61443260e3649c008d59092964d08bcf5029fde374fe66. 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/USJ3V1127587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309b7297bf65aecae5b8f9eaa62855fd6ca83fef7dc5404c22e58681cfba4548. 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/USJ3V0639396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28139b45e5564fefff8ed3bb065e55509bf759dc1c53673d0a09b3461a7c3a9. 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/USJ3V0639399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e09d6ad7ef66f970b6fc648750ced13321cce35ae65be74d106b681da290ba1. 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/USJ3V0639402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1615ed0665e5b5121aa8fdb6adc8db0049b12cd994948d90782c17683682e8. 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/USJ3V0639406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68af42cbd8542b733c6628ec756251c8a1ed98dac207671ae995da138f55921e. 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/USJ3V0639407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119ea7528390cf0c9953b96ebf054149a98b6d437611b1d0559104b46b9b1c09. 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/USJ3V1093986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b589c45ee8e7b906f0453713446d654b713815ec96e7d62b7644ec647acf54. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USJ3V1093987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f79cda252dab1ba95e2a6c8fd95ec401b994965a7cb9713abc217ed9d28e5b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USJ3V1041874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d227d39f3a80149ef425e353640460e6e9498b31cf6a37da2cbeda3308306d. 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/USJ3V1047548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edccf20a226ae744087500310c1a334274b47eafab877b769af6a957af8c0b8. 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/USJ3V1047553.
Salvadorenos En Salsa Bachata Y Merengue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cf8243749dc6cfc9416573f00d13180e387539f6c80ae8c99557db1a606fc0. 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/USJ3V1123723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100be076dc92d236a8efc5cb9c13d01840a206378f638b5182ebdfdb1e132e72. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USJ3V1123725.