Daniel Akiva (Hebrew: דניאל עקיבא; born 1953, Haifa, Israel) is a musician (guitarist) and composer. Akiva studied with Haim Alexander and Haim Asulin at the Jerusalem Academy of Music and Dance in J
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 0xac0462b5aa99743e348292f04020264d59a666965de653f830d5e5a8e325766a. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78a5142b-0a48-4737-abb8-c0fec1ac6d2b.json and https://artists.proofprofile.net/proofs/artist/78a5142b-0a48-4737-abb8-c0fec1ac6d2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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