NIA, Nia, or nia may refer to: Nia (given name), including a list of people and fictional characters Nia (fitness), a type of aerobic exercise Nia (charity), a women's aid organisation based in Lo
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb402f49d64cf403771a59aeec13ea3a0f969c13a356248e7166d897490cf05de. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc39d469-13be-48a9-a74f-690ce2d5e1d2.json and https://artists.proofprofile.net/proofs/artist/bc39d469-13be-48a9-a74f-690ce2d5e1d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).