Napoleon Solo is a fictional character from the 1960s TV spy series The Man from U.N.C.L.E. The series format was notable for pairing the American Solo, played by Robert Vaughn, and the Russian Illya
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 0xb582343b8bbde7cbe1f5a76e6217dd20ea86fbffc3f11469c0e4e518fb4bc211. 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/2810b059-ae0b-47f2-87be-8395e2d2dad0.json and https://artists.proofprofile.net/proofs/artist/2810b059-ae0b-47f2-87be-8395e2d2dad0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Merry Xmas Everybody / In the Midnight Hour