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 0x4f704c7ed8a9ec77e43749f45d61b2b5cde791f30d5ae2d0a2a08c0bf7e09187. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a99f09ed-c288-4e7c-8921-b7d0c95c8e5f.json and https://artists.proofprofile.net/proofs/artist/a99f09ed-c288-4e7c-8921-b7d0c95c8e5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shostakovich: String Quartets Nos. 2 and 3 / Tsintsadze: Miniatures
Nasidze: String Quartet No. 5 / Tsintsadze: String Quartet No. 6
Classical Georgia - Georgian State String Quartet Vol. 8
Classical Georgia - Georgian State String Quartet Vol. 2
Classical Georgia - Georgian State String Quartet Vol. 5
Classical Georgia - Georgian State String Quartet Vol. 7
Classical Georgia - Georgian State String Quartet Vol. 4
Classical Georgia - Georgian State String Quartet Vol. 6
Classical Georgia - Georgian State String Quartet Vol. 3
Classical Georgia - Georgian State String Quartet Vol. 1
Georgian Classical Visions - A String Dialogue Between Mountains and Silence