Braat is a Dutch language surname. People with the name include: Floris Braat (born 1979), Dutch canoeist Joseph Braat (born 1946), Dutch optical engineer Marloes Braat (born 1990), Dutch crickete
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 0x826a811ebf78c2af1e9cf576ba86994d8a16baa0e5ba75a5f0111ccdb2dee8f6. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17376d22-e251-4182-b50f-12646eb7ac81.json and https://artists.proofprofile.net/proofs/artist/17376d22-e251-4182-b50f-12646eb7ac81.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).