thumb|upright=1.5|Evidence about the Nazi Ernst Kaltenbrunner's war crimes is presented at the Nuremberg trials. In its broadest sense, justice is the treatment of individuals fairly. According to th
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 0x196e0c4cfc8ca4090e4be599de48f9e6a63eccddc494dccd83edc0fdc3b9d4f0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b904317d-2a88-4c51-ba6a-9473f5148e25.json and https://artists.proofprofile.net/proofs/artist/b904317d-2a88-4c51-ba6a-9473f5148e25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).