thumb|A military auxiliary radio system operator at Marine Corps Logistics Base Albany in Albany, Georgia in 1983 Auxiliaries are support personnel that assist the military or police but are organised
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 0x325684f1bf0f0758b378d0cfd20d8dfc1f2025d7c8284eea45405f9f0182802c. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c6e6df1-e34a-4788-9586-b685fd9d7cca.json and https://artists.proofprofile.net/proofs/artist/9c6e6df1-e34a-4788-9586-b685fd9d7cca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).