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 0x46cb7a3ad6561f6f4ab0f9934394f74e3eabda1716c34b754f425c1a94ca962d. 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/8f22877e-029b-469f-9dcb-875939d9d8a7.json and https://artists.proofprofile.net/proofs/artist/8f22877e-029b-469f-9dcb-875939d9d8a7.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 0x57c328858947cbaf458e50b9e996c813f67222e2ca19ec4e3509b9c9aff5f43b. 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/RUA582101938.
Она моя мания (Techno Project & Dj Geny Tur Remix)
Она моя мания - Techno Project & Dj Geny Tur Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e0e3c54143cd5c2024fdf4651719b0bda151f64ad850d50434c77cce2e54e3. 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/FR10S1959649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4d56c5b7e39bd724ad351205ff046ed1ba3b43df5a8c58506bcca79c14eaf5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/RUA582103139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e734ae976bcded59dd7d71da2e6690aeb70bcce3bf555413366aa60b0c2eaa. 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/RUA582103219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70527761d40569fbed1c0a0c88abc046ebe3a6d8c1b4d37bc8a5a1e47c9ef75a. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/RUA582104151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daa67425e6bba9702d2c1621d01c83f3a77778887253ed425f6a38f1bda3255. 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/RUA582104354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced69563ce2781b6d10a1b367ed74df24e42106bdac9ccbcb2bdca9daab81c1e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DGA072199453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794ac1d5c8bbc44001d6250bb4cc821da8723ac7a2c2c5af03eefae1d7441fbe. 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/RUA582106564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75f0431b9ac6732c1402a121621a58ec42fde59c5b540a55af62cd5a07864a2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/RUA582200526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cddce9487db83f8197dbc8f4a79f83625119eda04bf01a8987c90d9ea820a6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/RUA582200708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d915a97fd4daff20ec01e47e8c944edd63efe717ae680e6ba6a733f23048f1f. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/RUA322202303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f400973558ef1314ef46912698e38f3e718bd59dee22b347d9fc19600c56607. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/RUAGV2301136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46268d4ad27625fbc09e79d8fd376b7801c7bc92bf59e0b0bd6ea1efbdf3793b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2303582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2631675f556e6a9fc3e58627fe60b1f32ab8ea9be1f39df009268241a86c3356. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/RUAGV2305543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c331b7fd428365210975c2c3230c8337af04bee3072a9ea4405fd6a9296956. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2402225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79ac98a0a804c26601997b9b78e1f90704f2859534bb5fb10e7fed2d47ba27f. 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/RUAGV2404307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9381a0ca1ae81368e30d3e116b4cb1c32f92f2c7a94d59577964d5219c864c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/RUAGV2406013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a61a11aa886b2348a127b152c6756422049ae9d4ce5844ae0f504720347a3ba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUAGV2408323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd91264f377b527d9f92587ffe4f41c6d6226b4cea1342e50193b9fcb9095cc. 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/QZMZ92510075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d151d2d2ad37c281068eb3b7802b996be93905b2dcfd95028923055fbe8c6d9. 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/QZTPX2514605.