Fyodor Andreevich Insarov (Russian: Фёдор Андреевич Инсаров Федук; born 9 February 1992, Moscow), known professionally as Feduk, is a Russian rapper. His solo career began in 2010, and has since relea
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 0x7a0433d5265d85a22084befdfde872d5029694cefa09ab4f2350d79f66fe3d4d. 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/8c795a1f-3666-4714-b1ae-2b0978413ebd.json and https://artists.proofprofile.net/proofs/artist/8c795a1f-3666-4714-b1ae-2b0978413ebd.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 0x46b7e7fd5bc87d1f5dd162ca23916e21510394b761ba8ff0d96ae7a1360e41d6. 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/RUA582001748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb096e3788c5310987f2546d2a4df2ed2d86ec375420e471276f1a88f850a2a45. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:34:48Z), 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/RUA582001752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0d0847f73021ed48d627a6a1a648ebd8c323746e5974c13f10f84cc1a466d8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:20:08Z), 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/RUA582001759.
Мимо меня (feat. Toobe & Гриша БП & Zmey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122e00bd2d77bd21b6e406a9c3c66e7883b0230cf35e01c0b90f32a841e094de. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:06:28Z), 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/RUA582001773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9d3747220564310f9e5326886dbe4d268f8d63c898c1a75de7513d2ace07df. 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/RUA582001649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafd67c0a833ea7296e2a32fb502fd71057154a5369fa3f8cd2ba7a3efb5310d. 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/RUA582001689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143b6a412372bcf50b64a686405749346af346f0fa82872e85495aed149eb80b. 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/RUA582001694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a004d051f8e0374b02c5a17239a354f550b73218439b6e8e59070f49b635e6. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/RUA582001705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1336cca7f76cf3ed917f3cb695ccbfd96234e5483f6d37003e217097719613. 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/RUA582001758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f664abbf4a1271f4ca1c2531300c7ad8d21e42fe555f1959533147b6de20fa. 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/RUA582001772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b573b1e35ddb667775185cecce5df89882a7377cf3f785cb288087028816ecf. 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/RUA582001643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807fca52ef641765a99c72b68bb12527b3e08fa003fed15416f6d1739ef65799. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/RUA582001634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3116b5872b40d2be6313b200361d5c056afd09dcde1b16e59d452c15e3727afb. 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/RUA582001637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fa29956981db508dafa4c2e8b7fa545dbe2b092810ae0a37f492808b2df93c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:53:55Z), 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/RUA582001640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbae5507402a12ae2825ba263f06efb08e97881d669cc5bfcf11526dabae8693. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUB421801287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe42eed7ae77bf6cac0b1817a8a0080cedbc54abc12b5a5eddd7b42c2de8e0e. 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/RUB421801288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb57a76524dbf02af868db2184ed9a37296a0bb713026108bb8d67e74587e9a4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUB421801289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd080adc09e6025b742d8bc6a554c565d81008c4e21837a100b12d69913207e31. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUB421801291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32d102036141bc0bce837add4a73c86f20765253b6b63a705eb52149a7ad783. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/RUB421801293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd924c7db115e217988a8b7414c8d231c37e593d039c0b6490f91a1ef179b9b9a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/RUB421801294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc6edb0112b115c1650d722992027d206641ff444da58b7fea41b4f29f280da. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/RUB421801295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f74c81e98b36af4fba8ccb6e01ff20636bddd926433d23d19edce54bb7539ef. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUB421801296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2e25dc199b50605481af1c6bb80a5bdb100e0ce03c4a0284d9ee1b3a6804fd. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/RUB421901641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97add3815004625a0cd5eb049beadce8487ec6992506733be4d14444a3d43ea7. 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/RUA582001095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1509731c901879eba8b4038ff3a6b979c91965b2de6510ec86cf18669e330ac0. 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/RUA582002184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e895076894f5d1d03f529e73fde87fb4295ac5f888acd637bc490eb4b9f80a. 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/RUA582002187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fdd42077c048ab21a2897327c18bef14919efbff81f3e3a6800903f0e8a01e. 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/RUA582002188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4b3b0f265e0259851030c208a43e0385911038335a8529a816e7e81ec17370. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:34:57Z), 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/RUA582002189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44e3a48e1e43ccb618f206cb0f1d1e549bcba79fd3a420d565f2fe4a290925c. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/RUA582002191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1ad06414ce2ab18bbc23506ab254ca8ca40800ada81f9d68e652e4579061e9. 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/RUA582002192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f177459824ce6ae999927dec6c98a0dff68146119d8ecbc359fb358b212308c. 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/RUA582002193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ef4017cf08bab532f7eb4917d141deb92963df1008722948a82f7e2da90f18. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUA582002195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9047b102d889bac915038dbfe415926d488ab99383e220ef5894a21d6135be8a. 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/RUA582002196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dc29a36d5a00a3e50dc62e91319edb8d89ba094bfc7c0e6def736c4577cff0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/RUB422101373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640650fc24790c1073f92431c03ce5bf5638e4bae910260c68d81dd2054845bb. 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/RUA582101334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dbb2ecd2d00e986d09a4608f558cde9c68f3b39a2d50f2642f4ca616cba735. 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/RUA582101335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82fff6a70ae1461c8bd446d1880c58e5f8ccffcb03caf9fa8df811e3c1d2430. 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/RUA582101814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8369ac959db9f28b9c7f601656db4dd2d712b59bb0837c3960d536749d890fad. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/RUA582105071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dd7177661b8927007bbc0962717a90575d4a5d7ebbbcd22dc2988a5d982feb. 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/RUA582105872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6a7695da036dae18583a5bfcfdbf8648b8fcefb45ecab5c2076eb0088ec935. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/RUA582105874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fa8210bbd86f2834128ec4c67abb99956e811a31d1669273e5bede0ce8275c. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/RUA582105875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861093ebc6bd9bde44b66647d1c9d3d93cff42d7a74331ce97f95c3e92cfe56a. 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/RUA322202925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24214f225d517cf6c71569c55cd8feff127f005db5583c5835209e66eac573f4. 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/RUA322204114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80018e458f0903d9bb106ece6cd6811ead77a023b0b92e3a24eae650e16c8031. 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/RUA322204144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fe8f43c092bac78bac7852efe6cd7e4f64dc6c84a321d49680d6951e6427a0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/RUA322203523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c46d0d860489019d869e9939b75707dd88350a9b2b93c471b108093f8f32bf5. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/RUA322204145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f680016c2c00de07956344448fb6b98529ed01ada572a6541ed82e00d94f14b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/RUA322204148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd033dc80fe3aa478c2b390f7808cea211ebe670c77abdd45d9fc12078b7269d0. 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/RUA322204149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ff5a3e48bf38aadd0ab2860c0590da1badec57758bf00b98487e7c97591ad3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:25:10Z), 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/RUA322204150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35df9f0c3b709fa6d687131a1487e9ba27884335884379c98034dbf88f02d5ed. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/RUA322204151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861093ebc6bd9bde44b66647d1c9d3d93cff42d7a74331ce97f95c3e92cfe56a. 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/RUA322202925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef0a536c21fa8645e9786259745c8d5dd399415c971b01ac9825ce222de7f91. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUA322204153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49608f2a0cbfc0a11c3bbe6c0aed23f382f1dd3f83cd3d4921f2fdee5f426ef. 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/RUA322204155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab558dfae95244d19723cfc9c0c08ee78dcbeb16455c93b3ef408c3ac5c7106. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUAGV2300365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86aa636a3fb239eff35a9dd15825b228d9e5fb9dfa37b489dc38e07fea5ce151. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/RUAGV2306683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827191793537aa9b43d717f0b039d613ebbaad59466de78c4261c605f29ea681. 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/RUAGV2404060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f604980cc3e5e465a3ecca626e837feeaa7fabab3134bdbe2dd91bd658e13fa. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:48:34Z), 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/RUAGT2434584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf69e9411eb3caf416d4d03279395d6e143efb6603d3c9bb68754790e3d7a66. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/RUAGV2408216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c9a5dfee094275f5ad30de7715056f4ad12732179b59a2700a391b11b55121. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUAGV2513544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd416e00315a7fc4243e164e3de73a689c6a198d71f15f8f9e087bd03f19fa80e. 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/GBAHS2101524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08eeac1a261b74031814fda06d8c71f2654ccbd3e5cf284eb768272d9af6e250. 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/DGA062217432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434dbe7dcf4a5503124fea2d9a64942103b889a232b7c45aaa6f95980aa40309. 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/FR59R2122386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ff151de3e1adb1c34836f51c82d1e965db4bdc1975a2645e245ab95dc34164. 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/RUB422303136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebae35e23c8cae9f3583e91f610661860e68d885ab00137504d6d0720b5cb07. 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/DGA0Q2317499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdaf27a96c56fab13bbf8cc18add3725a41282ceef498feae217914c1a26c94. 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/QM7282392916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3204fcfd82302e42b6d70748f4c8e5861e5aee9f644861f0c083ce44c2183e21. 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/QM7282392917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296e8857133b13205cb67fce19bc629cc384cd77275e2240257d6d425c7d019c. 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/DGA062304281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8d1bfec2b66b9b8c974b46a272dedc4be4ae40a84a7534ac087f48e7192133. 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/DGA072279024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e363cd08f54844840d4f574579b074eb804873e4aaa54fc7a6b1ac2a7e1e54f. 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/RUA1D2041369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe7e886d818a256199dc82fb7263857b2d26087562a8c99fc55e5aa4dc350ef. 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/QM6MZ2368357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa897047cee49a532b20aa9f0b0c210134f4840662ba6c9266f7b5f1e473cc37c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/RUAGT2355088.
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