Mark, disclose and verify AI-generated content under the EU AI Act.

Article 50 enters into application on 2 August 2026. AxIA Protocol provides the cryptographic infrastructure that AI providers (§1) and deployers (§4) need to comply: machine-readable marking, publisher-attested disclosure, public verification, and the 12 official Annex I labels.

AxIA supports compliance with Article 50 transparency obligations. Compliance outcomes depend on each deployment and integration.

Machine-readable marking

Every piece of content signed with AxIA carries a tamper-evident, machine-readable receipt bound to a verified publisher. Any third party — including regulators, browsers and platforms — can independently verify the marking, with no AxIA account required.

Visible AI disclosure label

Whoever deploys an AI system that produces deepfakes or AI-generated text on matters of public interest must label the output. AxIA bundles the 12 official EU Annex I labels and a publisher-attested disclosure that is cryptographically signed — not detected.

Nexera Technologies — proud member of the European AI Alliance.

Together with policymakers, researchers, industry leaders and innovators, we help shape a trustworthy, human-centric and secure AI future for Europe.

TRUST & PROVENANCE

Verifiable digital provenance and authenticity for the AI era.

DIGITAL IDENTITY

Secure, privacy-preserving digital identity and ownership.

CYBERSECURITY

Protecting organizations from AI-enabled threats and synthetic content.

CONTENT AUTHENTICITY

Integrity, reliability and accountability of digital information.

COLLABORATION

Working across Europe to build a responsible AI ecosystem.

Building the trust infrastructure for the AI era.

SIGNATORY STATUS

AxIA Protocol — signing the Code of Practice as a technology provider of marking and detection solutions.

Nexera Technologies SL (operator of AxIA Protocol) is preparing its signature for Section 1 of the EU Code of Practice on Transparency of AI-generated content. AxIA delivers signed-metadata marking (Sub-measure 1.1.1), publisher disclosure (Art. 50(4)), interoperable detection (Measure 3.4) and watermarking evidence support (Sub-measure 1.1.2) through interoperability with SynthID, Stable Signature, AudioSeal and C2PA.

What AxIA covers today

Sub-measure 1.1.1 — Signed metadata marking

Tamper-evident, machine-readable marking on every signed asset. Independently verifiable by any third party.

Art. 50(4) — Deployer disclosure label

Official EU Annex I labels are surfaced automatically whenever a publisher attests that content is AI-generated or AI-modified.

Measure 3.4 — Interoperable detection

A documented public API lets any verifier — including browsers and external auditors — look up the provenance and disclosure status of a piece of content.

Sub-measure 1.1.2 — Watermarking evidence support

AxIA registers, preserves and verifies watermark evidence produced by specialised technologies (SynthID, AudioSeal, Stable Signature, C2PA). The evidence travels inside the signed receipt and the Verify response, with declared (by signer) and verified (by detector) entries kept strictly separate. AxIA does not produce or detect a proprietary watermark.

How to integrate

Sign + disclose

Use the Sign API or WordPress plugin. Declare ai_status (human_created · ai_assisted · ai_generated · ai_modified). The receipt is signed and logged.

Display the EU label

Embed <axia-badge> or use the WordPress block — the official Annex I label is shown automatically when ai_status is ai_generated or ai_modified.

Make it verifiable

Every receipt is published in the public Merkle log. Anyone can verify the marking and the disclosure independently — no AxIA account required.

What AxIA does NOT claim

Official references

Official EU Annex I labels (Art. 50(4))

AxIA surfaces the official EU labels automatically when a publisher attests AI-generated or AI-modified content. The label files themselves are issued and maintained by the European Commission — download them from the official source.

Supported transparency technologies

AxIA is designed for interoperability. We do not aim to create a closed standard — we carry and verify the evidence produced by the leading transparency technologies inside our signed receipts and Verify responses.