Larisa Izrailevna Mondrus (, , ; born 15 November 1943) is a Soviet singer (soprano), who was popular in the USSR in the 1960s. In 1973 she emigrated to West Germany. She sang in Latvian, Russian, Eng
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 0x12541f195edded615f644f2f74194c279fc6c10737ac42dc6cfeb3bb147f872e. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3a36cef-612e-49ad-8354-305f2847cb1c.json and https://artists.proofprofile.net/proofs/artist/b3a36cef-612e-49ad-8354-305f2847cb1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Возвращайтесь, журавли (Антология советской песни 1968)
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 0x7c8858ec6a11db723c2196a69114fb7d86b5d034e5350d14b41469ebca54c370. 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/UK2Y21305275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cce17e371c3270dc035bcc101049fdc1473de2eacb92a80fee1d2a23ae3ae16. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:32:54Z), 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/FR59R1741071.