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 0xd2116f1ecb15d1d04d9afb666ddba0be9dc5e3f5e5d0500c1fa07f61137cbb2f. 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/66131ccf-6b88-4e4e-a037-c29d7a8117ef.json and https://artists.proofprofile.net/proofs/artist/66131ccf-6b88-4e4e-a037-c29d7a8117ef.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 0xc6a8b9bb63662265f067efb21754ecaf008eda04c9aad76851320026ab12417a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCJPW2345129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b13d6385dcf5857531df400ef77b4c65f59810272f6d269fe09988af56b6ab. 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/TCJPW2345148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dc077c14fc1bd7ee346141fc1b4dd67c8db6cb86bd254ed266f11d04177808. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCJPW2345149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704d273ac0ca0da009d8fa44b63ef43557a0e5a14c9820a2c84fbe408a0daaa1. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCJPW2345522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255cc249e9e7d929a89c5ff2b3c1cf97ed88ba5b96548b466a90606b5eed71ce. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/TCJPW2345550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7055c4719aa5c508fbdfc60668ed37e075911e6f513cb0fb806d9755e75ee0. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/TCJPW2345556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dee74e18f96ec948873b8f7e999081cb67297161f0df98f671a2746050e01f0. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCJPW2345570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e1fd12a2d47729f22eaf9de0580af9b4352d759b7e75a19c485ba0ddfe8790. 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/TCJPW2345580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d928c2193a61cbc79f3e1461ca3a43778647c3e1897a8afc352e4c92652187f. 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/TCJPW2345583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ccefe28cc8b0a00dba17c897e6cec4b1a2235c52ff33454cddf0a085e7d986. 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/TCJPW2345587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a68a0c66d98b639881c55ecbdfb8b6681124b73d8bd1eef6b24b6b504d47f9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCJPW2345591.
Light illuminated on the room (feat. KAFU) [1st Anniversary Remix]
Light illuminated on the room - 1st Anniversary Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035c5daa180ee2235652fb1253b54f37d758fa1e72c94fc0fa5b858983b17b33. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/TCJPY2360231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf437e3e2b80efbe31ef6a29dcaaaaff49217352a1680d6530f474a3dd0cff760. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCJPD2557950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0797fa6fe711193277f698e72c1b1214789eb32794a3ea53aade9d88be016d8e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/TCJPG2543698.
Unable to Tell, Unable to Heal. - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3551d3bc5b08eac3cda57e0991ecf459b4fee4a4da24a810a4e1ee7a65a82fc4. 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/TCJPG2544030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dc35696bd8779abc59c8fddfade4c0620e4de843c8aa95444557a12a0232b0. 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/TCJPG2543238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f83247faafca6643802b3e7cb5e08a49e59b6387ce3fb676c50775efaef38d. 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/TCJPG2543266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb099f6bbbac9164cae453d74adf5966d6b35b660d01cc3122024775153fa16. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TCJPG2584921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e66348b58a2cc095e514c81e8d4934c785bf2ec27a0fbc12c8e5717f410237. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPJ2557400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8f1a38d82c9b3b8c52856564b7a23a01779b88ddce4e024730d2cfb195b636. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCJPJ2557526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04b03ada00f9f17e84de4e8a130d723926059e21f2872fff7b3c7bdf8d1326e. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPJ2557578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefb781d965692029602f6c660005a26eec28cdf250c91e5b79352b8fb2e71f7. 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/TCJPJ2557594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161f59aec5e2c3a75273384a8e535d7603b20a0b9ce9c19d2c316c0c411c2286. 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/TCJPJ2557602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f052a14e64a7ecc7cbcbfcd979bce27383400a4dd67989b9bcc549dbbf691e. 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/TCJPJ2557621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aca3c2d335616d4c5b41ceced6805105f1e3400c5369b0bba7398f3c084434. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPJ2557669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e20b50830b192b90c12b8b3a29a896a99ff3029d936898dc1fe8d973a3deed6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCJPJ2557725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefee9ff32a16e9c075d44d445e82110c1fd57c3b2f968175f4712197a99a8fc. 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/TCJPJ2557748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6695e7f3fd022d1f61ee56ef90f9e45f10dc31e0869c6511ef04fc245396c2a0. 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/TCJPJ2557759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c53e9a6e57042776201fc6868e35c3a91304198f561e3d76de6af476a5dbfa. 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/TCJPJ2557778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985acf14a89a93ccc52c797b8233844ee845020dbdd7254a2432c037cb079551. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPJ2557793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651a6208fdfe18d70262ee8009fa3d20dd16c2bd6e2de856befe7a888e24946b. 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/TCJPJ2557813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7a0ff3e6a5cb1f04495f33a8fc38a3e18a4b17938aff44d5d5bbddc076e6ec. 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/TCJPJ2557865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2841118eb35f5870d10be3dc878069d8c6cb282da922400408cb8a7fb3e54541. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPJ2557884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd03b07f09697c03754499e94805afcb4e62d6a028912613fa21d2079b8f0e39. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TCJPJ2557969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a20650f21e846a9648326107a9224deec31c50b7a90f494a29bd6e123e4aa5e. 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/TCJPJ2558046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783d0d8ae5217296a5aa2d4ebf5bac237dabbbe667bfb408e08e6cda9d1b602d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPJ2558190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddb40bb07eed25986abbc2c7b7a251e913f2b4d8be94a3b66b0544e9ed48fab. 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/TCJPJ2558225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbb86365bd435d88a529a5b24f9f9b92de196e949b8c8cf8661b4bb165cb0d8. 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/TCJPJ2558269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69932c3bbb6a584d2c33dc5f580050d3fe9aa743685ee89f0e73225f6c6e03f2. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCJPJ2558308.