Impact may refer to: Science, computing and technology Impact (mechanics), a large force or mechanical shock over a short period of time Impact (typeface), a sans-serif typeface Impact crater, a m
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 0xde031cb05a2654b1d13b73007ad0ba15cf1ca23518c21a40f0b8b37e56f18477. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9de80ce4-fc1e-4f1a-a51d-f2a973f48fec.json and https://artists.proofprofile.net/proofs/artist/9de80ce4-fc1e-4f1a-a51d-f2a973f48fec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).