John Pisano (February 6, 1931 – May 2, 2024) was an American jazz guitarist. Along with being the “godfather of jazz guitar”, he founded the “Guitar Night” in Los Angeles that had weekly shows for ove
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 0x39f9e6d9c5e97aca6e06883d96f4bb2f27488dbfc8d0f157a4cad7523060c28e. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f47407a6-93ec-4cfb-88ad-b7927813690f.json and https://artists.proofprofile.net/proofs/artist/f47407a6-93ec-4cfb-88ad-b7927813690f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).