Nando may refer to: People Nando (name), a male given name or nickname (short for Fernando, Ferdinando, etc.) Fernando da Piedade Dias dos Santos (born 1950), known as Nandó, Angolan politician and
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 0xd510b59b6a31a8bce243bfbb6260b4ad08c386f3b77ef5e7c850bae5101bfc1f. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee4dc37e-d6fc-402a-92c4-9148032c3367.json and https://artists.proofprofile.net/proofs/artist/ee4dc37e-d6fc-402a-92c4-9148032c3367.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).