Journal

Latest articles

Article of our Co-Founder Ariane in IM+io

Article of our Co-Founder Ariane in IM+io

Article・4 min

Article for IM+io of the August-Wilhelm Scheer Institut of our Co-Founder Ariane Scheer-Danielsson towards the need for a Trust Layer in Physical AI.

DPoP, HMAC, One-Time Nonces, AES-GCM: Anatomy of a Zero-Trust Certificate Issuance API

DPoP, HMAC, One-Time Nonces, AES-GCM: Anatomy of a Zero-Trust Certificate Issuance API

Crypto Engineering・3 min

Our SDK lets any browser obtain a signing certificate from AWS Private CA. That makes the issuance endpoint our most security-critical surface. Here is how it is defended, layer by layer.

One Signer Interface, Four Runtimes: Bridging C2PA Signing into Native iOS and Android Crypto

One Signer Interface, Four Runtimes: Bridging C2PA Signing into Native iOS and Android Crypto

Crypto Engineering・5 min

On mobile, signing keys belong in the keystore, not JavaScript. How callback-injected signers, browser key lifecycle management, and ASN.1/P1363 conversion let one manifest codebase run anywhere.

Building Your Own RFC 3161 Timestamp Authority on AWS KMS and Lambda

Building Your Own RFC 3161 Timestamp Authority on AWS KMS and Lambda

Crypto Engineering・3 min

A C2PA signature proves who signed, not when. How we run a standards-compliant TSA serverlessly: KMS key custody, salted DynamoDB serial numbers, and one nasty DER trap.

Signing a 2 GB Video in a Mobile Browser: Streaming C2PA with Lazy Blobs and BMFF Offset Patching

Signing a 2 GB Video in a Mobile Browser: Streaming C2PA with Lazy Blobs and BMFF Offset Patching

C2PA・3 min

C2PA demos are easy with a small JPEG. The engineering starts when the asset is a gigabyte-scale video in a mobile browser. Lazy Blob slices, chunked exclusion hashing, and iloc/stco/co64 repair.

Whitepaper: Zero Trust at the Source – Maximum Security for Decentralized Data

Whitepaper: Zero Trust at the Source – Maximum Security for Decentralized Data

Whitepaper・6 min

Zero Trust at the Point of Origin: A Software Trust Layer and Cryptographic Trust Label for Decentralized Sensor Data Integrity.

Build vs. Buy for Provenance: Why We Own the C2PA Engine

Build vs. Buy for Provenance: Why We Own the C2PA Engine

Architecture・3 min

Mature C2PA tooling exists. We built our own engine anyway. The architectural reasoning, what ownership enables, and an honest look at what it costs.

We Built a Full C2PA Library in TypeScript. Here's What the Spec Doesn't Tell You

We Built a Full C2PA Library in TypeScript. Here's What the Spec Doesn't Tell You

C2PA・8 min

JUMBF boxes, COSE signatures, custom assertions, and the edge cases only implementers discover. What we learned building a complete C2PA stack that runs in browsers, Lambda, and React Native.

Why Decentralized Trust Requires Different Network Protocols

Why Decentralized Trust Requires Different Network Protocols

tech-insight・4 min

When autonomous systems interact, trust is no longer a matter of centralized servers, but of decentralized verifiability. “Real-time capability” becomes the bottleneck.

What is C2PA?

What is C2PA?

Blogpost・4 min

The new lifeline against the flood of deepfakes, explained simply.

Exhibitor at InsureNXT 2026

Exhibitor at InsureNXT 2026

Events・1 min

Come visit us at InsureNXT Cologne 2026!

TrustNXT at MKS Leipzig 2026

TrustNXT at MKS Leipzig 2026

Events・1 min

TrustNXT Solution at the Messekongress Schadenmanagement & Assistance

Materna & TrustNXT: A Partnership for Digital Trust Protection

Materna & TrustNXT: A Partnership for Digital Trust Protection

Partnership・2 min

Materna and TrustNXT Announce a Technology Partnership to Protect Digital Content in the Public Sector

From Trust to Evidence: The Future of Bodycams

From Trust to Evidence: The Future of Bodycams

Bodycams・4 min

More Than Just Recording: Why Transparency Needs a Mathematical Guarantee

TrustNXT at InsurTech Insights

TrustNXT at InsurTech Insights

Events・1 min

Meet us in London at InsurTech Insights 2026!

Welcome to the team, Ji-Young!

Welcome to the team, Ji-Young!

Company News・1 min

New Head of Engineering on board!

The empty package

The empty package

Blogpost・3 min

When “Friendly Fraud” Eats Away at the Margin.

More momentum. More talent.

More momentum. More talent.

Company News・1 min

New Senior Product Manager & Founders Associate on board!

€1.6 Million Pre-Seed Financing for TrustNXT: Deep Tech to Combat AI Manipulation of Images and Videos

€1.6 Million Pre-Seed Financing for TrustNXT: Deep Tech to Combat AI Manipulation of Images and Videos

Company News・4 min

The Hamburg-based deep-tech startup TrustNXT, a spin-off of Basler AG, has received 1.6 million euros in pre-seed funding. The funding round is backed by investors D11Z. Ventures and HTGF.

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