Braak may refer to: People Daniel ter Braak (born 1991), Dutch cricket player Eva Braak Heiko Braak (born 1937), German anatomist (1906-1991), German author Jan Willem Ter Braak (1914–1941), Du
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 0x4ecb6f4f9d16029ff95f8c25daff76211ed39af242cd13cc3d92235af9226d95. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6305f0b9-bcd2-46d5-b82f-4e102e8ca92e.json and https://artists.proofprofile.net/proofs/artist/6305f0b9-bcd2-46d5-b82f-4e102e8ca92e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).