NKA anchors records to the world's open networks, sealing them into a transparent, tamper-proof audit trail. One product that proves where something came from — and that it has never changed.
Provenance and security, established in a single pass — no trust in us required. The math and the public record do the proving.
Your content is fingerprinted with SHA-256 — in your browser. The content itself never has to leave your hands; we only need the hash.
NKA signs the hash with an Ed25519 key and binds it to an RFC 3161 trusted timestamp — cryptographic proof of what and when.
The proof is committed to the Bitcoin blockchain via OpenTimestamps. From then on, the record is non-falsifiable — provable by anyone, forever.
When a record can't be quietly altered, everything built on top of it gets more honest by default — contracts, creative work, compliance, and evidence alike.
Once sealed, a record cannot be back-dated, edited, or forged without breaking the proof. Tampering is mathematically obvious.
One step proves both where a record came from and that it hasn't changed — no two systems to reconcile, no audit trail to maintain by hand.
Anyone with the public link can confirm a seal — against open networks, with no account and no dependence on NKA staying online.
We seal a hash, not your file. Your private content stays private — the proof is real, the exposure is none.
The same engine that seals one creator's work scales to an enterprise's entire compliance record — one file or a million, the proof is identical.
SHA-256, Ed25519, RFC 3161, W3C Verifiable Credentials, PAdES — open standards, not a proprietary black box.
The same provenance engine, shaped for different worlds. One NKA account opens every one of them.
Cryptographic proof of authorship and existence-before-date. Seal any file in seconds; share a public verification link anyone can check.
Seal a record →A sealed, permanent home for the records that matter most — built on the same non-falsifiable foundation.
Take a look →David J Martin built NKA — and its first product, OriginProof — from a single laptop. Today a team across IT, sales, security, research, and operations is scaling that work. The mission is plain: make honesty the default state of the digital world.
Read the full story →This started as one person on a laptop. Now it's a team investing their own expertise and resources because we believe this technology can change lives — and we're proving it.
Create one NKA account and seal a record in under a minute. No card to start — just provable proof you can share with anyone.