Noora may refer to: Noora (film), a 2002 film directed by Mahmoud Shoolizadeh Noora (given name), a female given name Noora (vaccine), an Iranian COVID-19 vaccine candidate House of Noora, a fami
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 0xf66cfe9edada7fa20a8d308f3f77fb2cd32083b38203771fb5f484981fd43eaa. 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/335f64b1-2e2d-440e-a8e3-f925f86e4eca.json and https://artists.proofprofile.net/proofs/artist/335f64b1-2e2d-440e-a8e3-f925f86e4eca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).