Ruah () is a surname of Hebrew origin. Notable people with the surname include: Daniela Ruah (born 1983), Portuguese-American actress from the NCIS Los Angeles TV series (1892-1958), Portuguese e
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 0x28b8cfab5cfbf662a8148da81587c937087d0a9f1760902c47d8468dd53f85ef. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd1737d5-8210-4946-8c40-de40042d5640.json and https://artists.proofprofile.net/proofs/artist/bd1737d5-8210-4946-8c40-de40042d5640.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).