Tony Hajjar (born August 17, 1974) is a Lebanese-born American drummer, best known for playing in At the Drive-In and Sparta.Tony Hajjar, (Sparta) June 2002, thenitmustbetrue.com As of 2016, he is pla
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 0x3957cc1bfe7e715df2924410f25dc6c5334c6e042acaa7d464c21991ef996d6a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a34b241a-1dfe-4b6e-ad77-1d9c4c81a2b4.json and https://artists.proofprofile.net/proofs/artist/a34b241a-1dfe-4b6e-ad77-1d9c4c81a2b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).