300px|thumb|Guido Tonelli in front of the CMS experiment at CERN Guido Tonelli (born 1950) is an Italian particle physicist who was involved with the discovery of the Higgs boson at the Large Hadron C
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 0xe778ce54c25fe76fec40d00dcc6c68ef982487e9207c1b20284a97092406dbe8. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/862c155e-8513-475e-a010-f5fff9164c97.json and https://artists.proofprofile.net/proofs/artist/862c155e-8513-475e-a010-f5fff9164c97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Genesis (Die Geschichte des Universums in sieben Tagen)