Valiant may refer to: Arts, entertainment and media Film The Valiant (1929 film), starring Paul Muni The Valiant (1962 film), directed by Roy Ward Baker Valiant (film), a 2005 film about British
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 0x783632b9740a8f42d8d07e84861a401ad65b82e0b459af62d395290d99e23784. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/198b8a55-a86a-4a7f-a101-606b35757fa5.json and https://artists.proofprofile.net/proofs/artist/198b8a55-a86a-4a7f-a101-606b35757fa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).