Niko may refer to: People The given name is sometimes a short form of Nikola, Nikolas, Nikolaos or others. Nikō (1253–1314), Japanese Buddhist disciple of Nichiren Niko (musician), American music
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 0xbbc35bd8a7130d669e99c0c8d55ff96dfa00ae1ac2bbe8e6ea00cc1d926e32a5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4fdfc76e-3c78-47c5-b572-1ad9b9fe2b57.json and https://artists.proofprofile.net/proofs/artist/4fdfc76e-3c78-47c5-b572-1ad9b9fe2b57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).