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 0x07d8c7571e53db3e804120b2524687979fe1fff86a583f7915b51342e1c162e0. 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/49eaaa72-9cd2-4424-be7f-3c8d1e832cf8.json and https://artists.proofprofile.net/proofs/artist/49eaaa72-9cd2-4424-be7f-3c8d1e832cf8.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 0x5773695cc9e179ba7607c2004042c056d82efcbc700fb867a2ce76a2c641824c. 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/FRS182041009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce53712fdf5890fb9e6295034e18ab48aed638a7d5f506dd0a77e29669d68465. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:31:13Z), 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/FRS182041013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62d62ea7b83f3ed60dbc38594a05453b9c76e148b0fa8f15fda0c22f530c2f1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FRS182041014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efde730b6150ea1772c101436c0ac03a966c9f1f80a145a39a9b717d7cef3be. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:42:19Z), 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/FRS182041016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3b99ee5d914f133726afa7559c6e4af461ad8069149c00421435941950287e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FRS182041018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38e43bc6365c297349c34894d2436311597a6930ce5d96abcd67c2d434f8012. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/FRS182041020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3301ecb65d770dd67c6e84ae9c03baa464bf0c380b101533af4eba6a648faa6e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:45:57Z), 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/FRS182041021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1661c53266664369dbc64a80fec6831c5b7303289c58eed19b84f3e17f845fb2. 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/AEA0D2078778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44c63dbc5ee77dfcb8016291faccebacbccbef10c2fbbdc2d08483ffe3d06fd. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:07:27Z), 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/RUA1H2105153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e98ffd801fb25f1fea5cf9234ae7c10b99e2b4e1497dad1d7f7b8bb498303be. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:18:36Z), 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/RUA1H2105154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa7cab7e8d486ab08ab7d41803ef01c815c4cfe5f471e82d74da185c1e0ef41. 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/RUA1H2138178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26624f555890ee74de606ae30eb182189ab9a17ca009a01d30cedd0c15c31de. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/AEA0D2134765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6ed2a435e0411b1394a2a6e6c15a700e8991fc1c4668f3d60308f667723a9f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/RUA1H1831672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0026f3f55358d9fdc853cf6c39ef753d8a125ea14a04423da8a36ed67c649dca. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:28:55Z), 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/RUA1H2241075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2709b8b16841139f981b4a6afb4a379a9eb3cdd33254fcf0dfedf76a731cb5f6. 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/RUA1H2284625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd92743957fae164791155edb297e1111bfa3464adbf0c4b03920b548b1f64a. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/AEA2M2259915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb755c6e8752b18caf1789fe0dbf500f6e0d6841e680272631bbd1b454581a20d. 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/AEA0Q2241647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb94826696884ec8e99bdce798d12f908152ab749b7272dabe0e3163b3530c71. 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/AEA0Q2274021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14431c49dd353359f9a4ebc92040a7c2efe7531ce097e47203439d70916f9c89. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/AEA0Q2274022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe392c92cfe612158e87ffdf1b28f771e5c9e54b7f831feaf9b7428194428a47b. 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/AEA0Q2274024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52f88821dedbaf44c9fd6494231770de5e81a8b6844a249d08a241019554dda. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/AEA0Q2274025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09060308af707b8f9998d5e09226add44e780b6c17a71c1c3262e86c0d34a504. 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/AEA0Q2274028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad2296c97f540096c4597a039635d990df18e3fe6239fd02d2821ffc59a09c4. 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/AEA0Q2274029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa037bb7087ccca737062fdb995e8154437223d8e505ee891d97c5c85ce5446. 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/AEA2L2304145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bffae62fc43b640f095ae39a7fef77c1e0b5473146bfa777660c26fb4962db0. 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/AEA2W2443353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fed88bd2a8aa1beebfa892faf1443fb9c4d9ebfc176cd7d3144023c32bc04d. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/AEA2W2443354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01d6096755073ea99fe1d3e6b6c35312eea0708d0c9078fff72a455f2dc410e. 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/AEA2W2443355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1429f9e9d4ae98d2e9a23c48cff91c3dcae25d89b721dfd98dd98920ac0782cd. 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/AEA2W2443356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6569338ddef7a7311ea2c78750c697146fb79abbf33a0c6d016610cb1b062cb3. 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/AEA2W2443357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb36a72436edf1bbe0312fe7fefcb078881f82bade212ca9293395857a78b028. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:07:36Z), 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/AEA2W2443360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0991858ba0b3d1d94b09306b86c6a4488136f0d6e4268be12e0e8ca7dc33ef7b. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/AEA2W2443361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d9cd38daa9c4b2efc5d319055a49001ca22415ac00a80e9c1a544721c66e5f. 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/AEA2W2443362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8b6402de154cc842ce00ff32cbcd479cbf35def008937526cc054d10b1399. 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/RUA1D2468751.
Ангели и демони (feat. Milioni, Mitrevv )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018279605e861129c80bb9b3c98075434f418f468e871b97ae02ff615ab1840b. 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/AEA0Q2499259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59aa44e921a6307f3344300d146a147c681d27c1fdbfbd3bf14b984b671ae7c. 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/QZK6H2393574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb732c12a38dbd784441f2abf166d232080c4405acd70f45bfc6606737a3aa8c0. 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/DGA0Q2374086.