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Hash-anchored compliance attestations
Hash-anchored AI compliance. Checkable by anyone, anywhere.
Attestry ships signed, offline-verifiable EU AI Act technical files and hash-anchored attestations across EU AI Act, NIST AI RMF, ISO 42001, and the Colorado AI Act, so your buyers, auditors, and regulators can check your claims without an email chain.
Free plan · no credit card · SOC 2 in progress
Attested
Example Credit Scorer
EU AI Act · Art. 9
Issued Mar 14, 2026
ID: atr_01HQAV8WZ3K6T9YFX2N4PMR5BD
did:web:acme-c…xample
Active
Trusted by AI teams shipping into regulated markets
- Acme Compliance Co.
- Example Systems
- Sample AI Labs
- Vega Applied
- Betelgeuse Partners
- Example Issuer 2
The compliance gap
Regulators & buyers are asking. Most teams can't answer.
Three things break the second an auditor asks to see the evidence.
Proof is non-portable
Compliance claims live in PDFs + Notion pages. Buyers can't verify without your security team on the call.
Frameworks don't align
EU AI Act Article 9, NIST MAP-1.1, and ISO 42001 Clause 6.1 describe the same control. Answering four times doesn't scale.
Audit trails are missing
When a model retrains, the compliance posture moves too. Most teams can't reconstruct what changed, when.
What you get
A full compliance stack. Not a checklist app.
Everything you need to move fast in regulated markets and prove it later.
How it works
Three steps. No spreadsheets.
1
Register your system
Fingerprint your model (SHA-256), declare its intended purpose, and map it to the frameworks it touches. Takes 60 seconds.
2
Issue an attestation
Attestry signs a compliance claim against your assessment, anchored to a SHA-256 hash with a public verify page.
3
Anyone can verify
Share a URL or QR code. Buyers + auditors + regulators confirm the certificate is genuine and not revoked, in real time on the public portal.
Frameworks + security
Covers the rulebook, signs the proof.
Frameworks covered
Assessments across all four; classification and document generation per framework capability.
- EU AI Act
- NIST AI RMF
- ISO 42001
- Colorado AI Act
Security posture
SOC 2 Type II
in progress
Ed25519 signing (Annex IV technical files)
production
Data residency
US region; EU available on request
For developers
Ship an attestation in six lines.
TypeScript + Python SDKs. An MCP server for Claude Desktop + Cursor. A REST API for hash-anchored proofs and Ed25519-signed Annex IV technical-file binds.
import { Attestry } from "@attestry/sdk";
const client = new Attestry({ apiKey: process.env.ATTESTRY_KEY });
// Register your system once.
await client.systems.register({
name: "atlas-credit-scorer",
purpose: "Consumer credit scoring",
frameworks: ["eu-ai-act", "colorado-ai-act"],
});
// Issue a signed attestation against an evidence bundle.
const attestation = await client.attestations.issue({
systemId: "sys_0001",
frameworkKey: "eu-ai-act",
articleRef: "Article 9",
evidenceBundleUrl: "https://example.com/evidence.zip",
});
console.log(attestation.verifyUrl);
// → https://attestry.app/verify/a1b2c3d4e5f6...<64-char SHA-256>npm install @attestry/sdk
No CI plumbing. No compliance-team hand-off. Your deploy pipeline signs the attestation; your registry publishes it; your buyers verify it themselves.
MCP integration guideStart attesting in 60 seconds.
Free plan includes fingerprinting, unverified attestations, and a public registry listing. Upgrade when you need signed proofs or SLA-backed verification.