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 0xad9ce0c5777badce95b287a5d69236cccc651d3534653b3a893586d197b1c7cf. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b713a2f-64b5-42ff-9f51-f280814d1ae6.json and https://artists.proofprofile.net/proofs/artist/5b713a2f-64b5-42ff-9f51-f280814d1ae6.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 0x6f2b77c4d09133fdc521324d3b6bed2769276a44f1c8dc7fb38d015255f89cb6. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/CH6542556191.
Концерт в "Гнезде глухаря" 29.03.2000, часть I - Всё перекаты…
Концерт в "Гнезде глухаря" 29.03.2000, часть II - Жена французского посла
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef07fb8cc4894f3037051cf1e343e3e4b467ee7691e7a94f061c0cabb9c0d4e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:09:34Z), 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/CH6542557566.
Барды нашего века (Диск 1. Снег 1953-1961)
Барды нашего века. Диск 6. Острова в океане (1972-1977)
Российские барды (Александр Городницкий)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20769a0a5e94aa71de6793607ed832bb3f2001127c163a0aca7fa4c46e3dcbf5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:40:19Z), 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/FR10S1560623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7e2c1c56e2fcf813cb574c47a43b5c9fdc4089009de86404b8265114d68e81. 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/FR10S1560627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7535a4b82706027ed69227e132f45485f58ced79445fb15fef581a39f7bad37. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:28:30Z), 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/FR10S1560649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe1ffe26258443bd263e7a4929b5f05aad2942f62dbc6c1fd6d6482899d8bd1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:04Z), 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/FR10S1560650.
Za tekh , kto na zemle (За тех , кто на земле )
Ot Orenburga do Peterburga (От Оренбурга до Петербурга)
Globalnoe poteplenie (Глобальное потепление)
Guessing on the Palm (Гадание по ладони)
Davai poedem v Tsarskoye Selo (Давай поедем в Царское Село )
Blue Sky Over Canada (Над Канадой небо синее)
Airports of the 19th Century (Аэропорты 19 века)
Pillars of Hercules (Геркулесовы столбы)
Why Did We Part Our Ways (Почему расстались)