Kunst may refer to: Kunst (surname), a surname Kunst (album), a 2013 album by industrial music band KMFDM Art, a word for art in the Estonian, Danish, Dutch, German, and Norwegian languages See also
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 0x1b01560eda2262236c354a62a67b08c8248d9c37bc90358d8f3327abbb1551a9. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c130d9c1-52a7-4e16-bde3-1b9e9f19a72e.json and https://artists.proofprofile.net/proofs/artist/c130d9c1-52a7-4e16-bde3-1b9e9f19a72e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).