{"copyright_id":"0x7df35d1dfd65893ec35174c5b9f6ae85c0401b5bf6bfc9becf9201bc30b9ce1a","name":"Stepan Vasylyshyn (Степан Василишин)","registered_at":"2026-06-14T21:35:04Z","symbol":"NIM0583379","token_address":"0xaf80f918a5c9fbaf6821a9c54adea05d789bdb7f","type":"artist","uuid":"a25fce36-994b-4cc2-8248-ec3e327cea19"}
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 0x7df35d1dfd65893ec35174c5b9f6ae85c0401b5bf6bfc9becf9201bc30b9ce1a. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a25fce36-994b-4cc2-8248-ec3e327cea19.json and https://artists.proofprofile.net/proofs/artist/a25fce36-994b-4cc2-8248-ec3e327cea19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rainbow of Six Strings (Радуга в шесть струн)
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 0x43bc99cf2bc6ac570febfd6deaaf16b484474e3adcb77e7587c210504b5688a4. 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/USCGH1224470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb41f7906846065f4d89131a33a45c77b5dbae74b0fc26bd38fb829cf2d80d13. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USCGH1224471.
Between Summer And Autumn (Между летом и осенью)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939570227f07df75bd159797bfc83bb670652082a07c54a6ab70d8025a216226. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USCGH1224472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544c8f49c36f85a918507f880ed20b95f81c91f4b4cff1a30527e2b8493e7f17. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USCGH1224473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485f14006c150e711734d49b2824162469e4392b78e61c589604905b6598cef8. 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/USCGH1224474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc299923780e1a229cd6a63bd3e5c4e850e1feff7ffccaca008d691377215909. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USCGH1224475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979c50375dfa72948fccc93842ca0be3e3ead7f6a41ce0052f2fd527d73f3989. 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/USCGH1224476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685dcc39dc698746cb6454e93012f97d56d7f151a47b27829a5769ee3b752421. 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/USCGH1224477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dd9e5ad68d3ed6d72397b26d731715f2882f0b3b74aff32bd9e4afc347caf5. 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/USCGH1224478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135c3304c9e32ea27a7417a337d16e5cb0435e4ead50358f18e9de103a7213f8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USCGH1224479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cea1501d51a3b36e29cc684d8c2d806c852750e2fea6c6b2e30e50c80e27f80. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USCGH1224480.
Goodbye, My Friend (До свидания, мой друг)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cc8811fac43516ec4007a5b6c5567b8dd86628615f195bab339ef557f76eb4. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/USCGH1224481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e3cd6d9f5d56091adc80d00ec1c8042d93a71e1007014c11e848ea0f82f85e. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USHM21110064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0cc617f80dcd6ae66d7ceb87dcb2c287550abd0b12000748a3c08973827d86. 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/USHM21110065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d01ae671d9ec0681c8bbb50ee7a3f8987e186465029b08f2364a6dfa015ed. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USHM21110066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9d18e8dde08966aa392cf7c8d46ef8a696962b7dab5721e28dd6b353f4089f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USHM21110067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657c54b9b4a335624c31b0213c0b9da2bad9e8d40dbdc22d8f9251dc85a74864. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USHM21110068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ed8ba816e197d25444dbde3f7f62579eea2cf6abe3c39aeec5cd52cbe165e3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM21110069.
Gathering With Life (Знакомство с жизнью)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767d8357333cd88ca0806c831743a4ff878f49b44a2e62a6eed6e9804b1420a1. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USHM21110070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9368f0b5e01226ba5895d58e995c876afbb97e61d66a8677b852fc57e5f4fbd7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USHM21110071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fc22551672ce771a0460abdec0c858a78e920b4d108bee17cdc89e92bb5445. 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/USHM21110072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa103f1d58e723cf1742dfcacf352c932ffae398ba351cb8dd7b3602c8bb3895d. 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/USHM21110073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c9f323b962fa94992715551745268353112767e5c1a90f4ea02f6f8619cabd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM21110074.
Clean Heart Does Not Weep (Сердце чистое не плачет)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4aa38e3c051d2c7c017db6d6df6bb33a70c7ba2b037a54bc0b1c04deb3083ea. 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/USHM21110075.