David Zollo is an American singer, songwriter, author and recording artist who plays piano and organ on his own albums and for other artists. Biography Early years Iowa native Zollo learned piano a
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 0x756d2b0f22c4e7ddd75d36e1aceb9b77f48f70c50121a19b7bf5e03429334988. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/064737a9-4566-4c52-bce3-f3942d15d7aa.json and https://artists.proofprofile.net/proofs/artist/064737a9-4566-4c52-bce3-f3942d15d7aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).