right|thumb|Tim Armacost (left) with Jon Hammond in 2008 Tim Armacost (born December 8, 1962) is an American jazz musician. Life and career Armacost grew up in Tokyo and Washington D.C. At the age
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 0xb73e53ce141471f9782e4f7d9653bd63109b988b633d831451705c8a340fbd39. 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/ac38f831-3973-4a49-8e36-15239404374d.json and https://artists.proofprofile.net/proofs/artist/ac38f831-3973-4a49-8e36-15239404374d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).