A Foundation · Product owned by 256Bank

Digital trust — that just works

The internet was built on trust me, bro. We're building the layer that lets you actually verify — that the message is real, the document is signed, the transaction happened. Quietly. In the background. Everywhere.

EU-based · GDPR by design
Cryptographically verifiable
Open standard · Neutral
Built for humans and machines
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Why it matters

Every day, you're asked to trust something you can't verify

A message from your bank. A photo in a news article. A "sign here" pop-up. An AI answer. The internet has run on faith for thirty years — and it's getting harder every day to tell what's real. We think that should change.

Is this message real?
Scam texts, fake bank emails, deepfake voices. When someone says "it's me" — you should be able to check, not guess.
Is this document signed for real?
Contracts, receipts, medical records. A signature should mean something — and you should be able to prove it years later.
Did this actually happen?
Payments, transactions, events on the record. When it matters, you should have proof that stands up — not just a screenshot.
How it works

Simple in the middle. Serious cryptography underneath.

You don't have to understand it to benefit from it — just like you don't need to know how HTTPS works to bank online. But if you're curious, we'll show you.

1
Something happens
A message is sent, a document is signed, a transaction is made, a piece of content is published.
2
A Trust Stamp is created
In the background, a cryptographic fingerprint is recorded — verifiable by anyone, forgeable by no-one.
3
Anyone can check
Now — or in ten years — anyone can verify: yes, this really happened, exactly like this, at this moment.
Where the Trust Stamp shows up
💬
Your bank actually texted you
A little checkmark next to the message — real, verified, safe.
📄
Your contract still holds
Signed today. Provable ten years from now, in any court.
💸
Your transfer really went through
Cryptographic receipt — no more "the payment must be lost".
🖼️
That photo wasn't AI
Or it was — and you can tell the difference in half a second.
Our promise

Digital trust — as basic as electricity, as neutral as a public utility.

The Trust Stamp is an open standard, stewarded by a Foundation. No single company owns it. No user pays for content authenticity. It's built to last decades, not quarters.

A Foundation · Product owned by 256Bank

The Foundation of Digital Trust

The Trust Stamping Foundation advances the Trust Stamp — a cryptographic standard for verifying digital actions, identities, and computations against a unified benchmark for integrity, accountability, and trust.

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02
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Trust Stamp
Verified Integrity
0xa7f3…9e1c · verified
MPC · 4-of-5 quorum
Stamp valid
Anchored in
The Foundation

Who is the Trust Stamping Foundation

A Danish Foundation established to advance digital trust through open, neutral, privacy-preserving infrastructure. The Trust Stamping product is owned and operated by 256Bank — the Foundation stewards the standard, the ecosystem, and the public interest around it.

The Trust Stamping Foundation is a Foundation dedicated to the long-term stewardship and adoption of the Trust Stamp — an open cryptographic standard for verifying digital actions, identities, and computations.

Rather than building products or competing applications, the Foundation develops the standard, supports the ecosystem, funds public-interest research, and ensures that the Trust Stamp remains open, neutral, and usable across industries and jurisdictions.

The underlying Trust Stamping product, platform, and intellectual property are owned and operated by 256Bank. The Foundation operates at arm's length to protect the standard from commercial capture and ensure broad, fair participation.

"Trust is not a product. It is a public good. The Trust Stamping Foundation exists to make verifiable trust as available, as cheap, and as neutral as an internet connection."
Digital Trust Architecture

Two layers. One cryptographic stamp of trust.

The Trust Stamping Architecture combines two core technologies — blockchain as a coordination and security layer, and Multi-Party Computation (MPC) as a cryptographic execution layer — into a unified infrastructure that delivers the highest level of verifiable integrity for data and processes.

Layer 01 — Coordination
Blockchain Coordination
An immutable, tamper-evident ledger that orders events, distributes attestations, and provides the public record against which any Trust Stamp can be verified.
Ordered, auditable event log
Distributed consensus across independent operators
Tamper-evident: any change is cryptographically detectable
Public verifiability without exposing underlying data
Layer 02 — Execution
Multi-Party Computation
A cryptographic protocol that lets independent operators jointly compute results over encrypted inputs — producing verifiable outputs without ever revealing the underlying data.
Computation over encrypted data — no plaintext exposure
No single party ever sees the complete input
Quorum-based execution: resilient to collusion and failure
Suitable for identity, fraud, compliance, and AI workloads
TRUST STAMP
The output · Layer 01 + Layer 02
The Trust Stamp
A Trust Stamp is a cryptographic attestation — produced by the combined blockchain and MPC layers — that verifies a digital action, identity, or computation against a standard for integrity, accountability, and trust. Anyone can verify a stamp. No one can forge one.
Verifies digital actions: transactions, approvals, credentials
Verifies identities: people, organisations, AI agents, devices
Verifies computations: fraud scoring, compliance checks, AI inference
Publicly verifiable, privately computed
Solution Pillars

Real-world problems, solved with the Trust Stamp

Solution pillars group real-world problems into domains that can be solved using the Digital Trust Architecture. Each pillar delivers verifiable integrity, privacy by design, and regulatory alignment — out of the box.

Participate

Three roles. One ecosystem.

The Trust Stamping Foundation is sustained through active participation — not passive usage. Every participant takes on one of three roles, each with its own responsibilities, rights, and contribution model.

How the roles fit together

Contributors fund and shape the Foundation. Actors build on and use the Trust Stamp across industries. Core Operators run the cryptographic infrastructure itself. Each role reinforces the others — removing any one weakens the whole.

Contributors — supporters and funders
Actors — builders, users, deployers
Core Operators — node operators, validators
TRUST STAMP Foundation Contributors fund · govern Actors build · deploy Core Operators run nodes
Contribute to the Foundation

Four ways to contribute

Contributions fund the Foundation's public-interest work: open-source development, builder grants, research, education, and policy engagement. Choose a recurring tier below or make a one-off contribution in any amount.

Governance

Operating principles

The Foundation operates under a published governance framework designed to keep the Trust Stamp open, neutral, and accountable over the long term.

Verifiable digital trust — as a shared public good

Join the Trust Stamping Foundation and help build the open standard for integrity, accountability, and trust on the European internet.

Partner access · Actors & Core Operators
Economics

How the Trust Stamp is paid for

Every verification is an on-chain action. On-chain actions have a cost.

The core principle

Two pricing models

Use cases & fees

How the interchange fee is shared

Pricing principles

Detailed pricing

Every use case, every fee, every split

A per-use-case breakdown of what each verification costs, who pays it, and how the fee is distributed across the ecosystem. Use the calculator below to estimate real-world costs for your volume.

Fee calculator
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Contributor
Individual or organisation funding and governing the Foundation's public-interest work.
From €50/year · Immediate membership
Actor
Builder, integrator, or enterprise using the Trust Stamp inside your products and services.
From €2,400/year · Reviewed within 5 business days
Core Operator
Institution running cryptographic infrastructure — MPC nodes, validators, signing quorums.
By application · Technical due diligence required
By joining you accept the Foundation's governance charter and privacy policy.
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Your contribution funds protocol development, builder grants, and public-interest research. EU charitable receipt issued on request.
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Your contribution has been received. A receipt has been emailed to you, and you are now a registered Contributor in the Trust Stamping Foundation.

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