Brish may refer to: Alexei Brish (born 1986), Russian hockey player Arkady Brish (1917–2016), Soviet physicist William M. Brish (1906–1999), American public administrator Brish Run, a tributary of Pi
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 0xa4d0aee0708518e124d36ef2dc2df0b9731792aec8ecf822859f01693c9c847c. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3357c8a3-f1af-42db-aaf0-fb49ff6fe873.json and https://artists.proofprofile.net/proofs/artist/3357c8a3-f1af-42db-aaf0-fb49ff6fe873.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).