thumb| Kuratas, a mecha made by Suidobashi Heavy Industry at the Maker Faire Tokyo (2012) In science fiction, or mechs are giant robots or machines, either depicted as piloted or sentient and are typ
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 0x9798ecb503a953028ee2511814a7e98d369cac2beba04b62bb143f568385e804. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bceeac87-77b4-4ead-9aae-1b824f20f672.json and https://artists.proofprofile.net/proofs/artist/bceeac87-77b4-4ead-9aae-1b824f20f672.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).