Niro may refer to: Niro (rapper), French rapper Niro Group, originally A/S Niro Atomizer, a Danish company acquired by GEA Process Engineering Niro Ceramic Group, a ceramics and porcelain tiles manuf
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 0x91451a883e548dcabe7be943381751bdfde30aaa1782beae787ad3c99bf5e77d. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3aea5e24-7d86-40a2-9860-f6626851a518.json and https://artists.proofprofile.net/proofs/artist/3aea5e24-7d86-40a2-9860-f6626851a518.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).