Schmidt may refer to: Schmidt (surname), including list of people and fictional characters with the surname Schmidt (singer) (born 1990), German pop and jazz singer Schmidt (lunar crater), a small
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 0xb89ecb305949b492579d499dcf2e421523afdc97006b5f8a7ad53165b2db5c66. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b60c2b78-64d4-4cc0-a299-334122f164e5.json and https://artists.proofprofile.net/proofs/artist/b60c2b78-64d4-4cc0-a299-334122f164e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).