Compliance-ready evidence for AI systems
Generate cryptographically signed Evidence Bundles for the European Union Artificial Intelligence Act (EU AI Act) and International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) 42001. Verify offline—no network, no API keys required.
Residency by design:Data, keys, and logs pinned to United Kingdom/European Union regions
Verify offline
DSSE sign
Dead Simple Signing Envelope creates tamper-evident seal
STH inclusion
Signed Tree Head from transparency log proves when bundle was sealed
Local verify
Auditors check bundle integrity without network access
Typical verification time: Under 10 secondsSee method
Evidence you can export
Cryptographically signed packages that prove compliance. Auditors verify offline—no API keys, no network dependency.
Issue
Generate DSSE-signed Evidence Bundles that travel with their complete audit trail.
Cryptographically sealed packages with tamper-evident properties.
Verify
Validate STH inclusion and consistency alongside optional TSA timestamps.
Offline verification in seconds without network dependency.
Share
Distribute tender and audit packs without exposing raw bundles or keys.
Secure evidence sharing with built-in verification.
Runtime governance
Gateway evaluates prompts, tools, and outputs against policy. Decisions are logged to a transparency log that issues a Signed Tree Head (STH).
- IBM Granite Guardian insights with rules-only fallback keep policies enforceable.
- Every decision receives an exportable audit entry linked to STH checkpoints.
- Manual overrides capture reviewer comments so evidence stays balanced and traceable.
Tool call denied: content matches policy P-001 (Prohibited AI behaviours). Reason logged for reviewer follow-up.
- •Fingerprint anchored to the latest Signed Tree Head (STH).
- •Reviewer can annotate and re-issue within the Dossier workflow.
- •Transparency log entry published for independent verification.
Faster tenders. Calmer audits.
Built for the demands of enterprise procurement and regulatory oversight.
Pre-award assurance
Provide auditors and procurement teams with cryptographically signed evidence before contract award. Reduce post-award compliance queries.
Residency by design
United Kingdom/European Union
Data, cryptographic keys, and transparency logs remain in your selected UK or EU region. No cross-border data movement without explicit control.
Tender pack template
Pre-filled responses to common procurement questions with linked evidence. Accelerate Request for Proposal responses with verifiable proof.
Trusted by procurement teams & compatible with leading platforms
Evidary generates portable evidence that works with your existing AI infrastructure
Exclusive hosting platform with EU/UK data residency
AI platform integration
Cloud AI services compatibility
Amazon Web Services integration
OpenAI API evidence
Meta AI platform support
Model registry integration
Enterprise system integration
International standards compliance
UK government standards
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European Union Artificial Intelligence Act alignment
Map obligations to concrete artefacts by role. Evidary generates the evidence you need for each stage of the AI lifecycle.
Provider
Technical documentation
Signed Dossier snapshot with model card, training data provenance, and risk assessment
View detailsConformity assessment
Evidence Bundle with cryptographic proof of control implementation
View detailsTransparency log
Signed Tree Head (STH) entries proving when evidence was sealed
View details
Deployer
Fundamental rights impact assessment
Linked evidence in Dossier with stakeholder review workflows
View detailsHuman oversight measures
Runtime governance decisions logged with policy enforcement records
View detailsMonitoring obligations
Continuous evidence capture tied to operational metrics
View details
Importer
Verify provider compliance
Offline verification of Evidence Bundles without network dependency
View detailsDocumentation retention
Write Once Read Many (WORM) storage with tamper-evident seals
View detailsMarket surveillance cooperation
Portable bundles with complete audit trail for regulatory submission
View details
ISO/IEC 42001 readinessInternational Organization for Standardization/
ISO/IEC 42001 specifies requirements for an AI management system. Evidary helps you capture evidence for each capability without claiming product certification.
Policy
Establish and document AI policies, objectives, and acceptable use guidelines
Evidary artefact
Policy documents stored in Dossier with version control and approval workflows
Oversight
Assign roles, responsibilities, and authorities for AI governance
Evidary artefact
Reviewer assignments and decision records logged with cryptographic timestamps
Risk
Identify, assess, and treat risks throughout the AI system lifecycle
Evidary artefact
Risk assessments linked to controls with signed Evidence Bundles as proof
Improvement
Monitor performance, conduct audits, and drive continuous improvement
Evidary artefact
Dossier snapshots capture changes over time with full audit trail
Note: Evidary provides tools to generate evidence. ISO/IEC 42001 certification requires an independent audit by an accredited body.
Built for compliance
Living Dossiers, runtime governance, and tamper-evident trails. WORM retention available for evidence and log archives.
EU AI Act ready
- Mapped obligations with reviewer workflows and Dossier snapshots.
- Risk controls tracked to exportable transparency log entries.
- Write Once Read Many (WORM) retention for sealed artefacts.
ISO/IEC 42001
- Policy, oversight, and improvement cycles aligned to ISO/IEC 42001.
- Runtime evidence linked to management reviews and audits.
- Continuous improvement data captured in the Dossier.
Verify offline
Auditors can verify without an internet connection. DSSE, STH, and TSA checks run locally.
Frequently asked questions
Trust Centre
Verifiable commitments to security, residency, and transparency.
Evidary Pulse
Recent developments that affect provability, governance, and audit readiness.