EU AI Acthigh-risk AI systems evidence

High-risk AI systems evidence

Preserve lifecycle evidence for high-risk AI systems, from model changes to human oversight.

Last reviewed: 2026-06-03Official source links includedRobots: index,followQuality gate: approved
Relevant evidence visual for High-risk AI systems evidence

What this page covers

High-risk AI governance depends on traceable system versions, risk controls, monitoring records and human decisions.

Legal timing

The AI Act entered into force on 1 August 2024. The Commission describes 2 August 2026 as the general application date, while the AI Omnibus political agreement moves many high-risk areas to 2 December 2027 and product-integrated systems to 2 August 2028. The preparation work still has to start now because evidence cannot be rebuilt reliably after deployment.

This page is implementation guidance for evidence planning, not legal advice.

Evidence Attesto AI can preserve

system identifier

model or service version

dataset version

risk control result

post-market monitoring signal

Example evidence records

system identifiermodel or service versionpolicy versionhuman approval or overrideauditor verification receipt

Example proof receipt

Example Attesto receipt

event_type

HIGHRISKAI

timestamp

2026-06-04T10:21:00Z

leaf_hash

sha256:8f41...b19e

merkle_root

sha256:52ac...91d4

verification_status

valid demo receipt, raw data not exposed

Where Attesto fits

Attesto records proof across the lifecycle instead of leaving teams to reconstruct evidence from tools and tickets later.

FAQ

How is this different from a normal log?

A normal log asks an auditor to trust the system that produced it. Attesto records hashes, signatures, Merkle proofs and verifier receipts so selected evidence can be checked independently.

Does Attesto need to expose raw sensitive data?

No. Raw records can remain encrypted or customer-controlled while proof material is shared for verification.

Where does High-risk AI systems evidence fit in the compliance stack?

Attesto records proof across the lifecycle instead of leaving teams to reconstruct evidence from tools and tickets later.