Gon Halevi () is an Israeli musician, pianist, composer, opera singer, and conductor. His work often merges classical and modern musical styles, and is known for his orchestral interpretations of well
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 0x4ea6084b8ecd7ba7ff522c04fc5d8f39fb30af730947def07c89d13f7d082acf. 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/854f69a3-d857-4173-a859-32faa1765f40.json and https://artists.proofprofile.net/proofs/artist/854f69a3-d857-4173-a859-32faa1765f40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).