thumb|upright=1.35|54 mm (1:32 scale) toy soldiers by Imperial Productions of New Zealand A toy soldier is a miniature figurine that represents a soldier. The term applies to depictions of uniformed
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 0xd44e5187175574e718a2bb4db0edd05be99a05fcd5e374177bf7ca079a01cdf6. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f76e252-08a4-438e-9e06-7e96df106e1d.json and https://artists.proofprofile.net/proofs/artist/2f76e252-08a4-438e-9e06-7e96df106e1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).