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 0x8c7a9d253b31934b0aad1b5eb4cde1411d044e199be450ced0154a27c60aaec9. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6364f5be-1633-4dba-a1fb-c7a52676fc49.json and https://artists.proofprofile.net/proofs/artist/6364f5be-1633-4dba-a1fb-c7a52676fc49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Добрый вечер (Антология советской песни 1964)
Нас звезды ждут (Антология советской песни 1965)
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 0x933582b2af8a8cf3d72b9c4572ed403d66c04c5c8d054bfd7ade63ae34a6cf96. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:06:26Z), 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/QZL5N2322362.
Солнечная баллада (Антология советской песни 1967)
Только любовь права (Антология советской песни 1969)
Озерный край (Антология советской песни 1970)
Синий лен (Антология советской песни 1970)
Проснись и пой (Антология советской песни 1972)