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 0xa595fc1839758d5055db0b423eaf8cbeeef56de002423268136684c158b85c29. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/821ca7b4-6295-4e1a-801a-3ce291256350.json and https://artists.proofprofile.net/proofs/artist/821ca7b4-6295-4e1a-801a-3ce291256350.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Обнимая небо (Антология советской песни 1966)
Орлята учатся летать (Антология советской песни 1967-1968)
Русское поле (Антология советской песни 1969)
Степь да степь кругом (Антология русской песни 1969)
Из-за острова на стрежень (Антология русской песни 1969)
Знаете, каким он парнем был (Антология советской песни 1971)
Песня ямщика (Антология русского романса 1970-1973)
На безымянной высоте (Антология советской песни 1972-1973)
На безымянной высоте (из фильма "Тишина")
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 0xb65d041ddb490738291cff1a8c6044f24c57b201311ca5a03d9b1851689c7f10. 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/QZL5N2441489.
Коли кружляють сніжинки (Anthology of Ukrainian songs 1966 - 1974)
Зимняя любовь (Антология советской песни 1974)
Дивные очи (Антология советской песни 1976)
Маленькая баллада (Антология русского романса 1977)
Я не пророк (Антология русского романса 1978)
Песни Александры Пахмутовой (2023 Remastered)