Aqta · Dublin, EU

If you can't prove,
it didn't happen

Receipts for AI. Signed at runtime. Verifiable without us.

Cryptographic receipts on every inference call. Public ledger commitments for prediction systems. Methodology published openly before pilots sign.

Est. MMXXVI · Dublin, IrelandReceipt of Attestation

Acta · etymology

aq·ta
/'ak·tə/ · noun
1.
From Latin acta, plural of actum: things done, the public record. Roman senates inscribed acta diurna daily, dated and public, impossible to deny later.
2.
Since 2026. Cryptographic attestation: every action signed at source, independently auditable, indelible.

verba volant, scripta manent

retain this receipt · how verification works

AqtaBio · Public Ledger · W19

Eight days.
Public git.

Congo Basin · 6×5 tile lattice top-5 elevated baseline

9 May 2026

AqtaBio · W19 commit

Five Congo Basin ebola tiles, listed in an append-only public git ledger. Three in Central African Republic and Republic of the Congo, DR Congo at rank 4.

commitments/2026-W19.json

17 May 2026

WHO · PHEIC declared

Public Health Emergency of International Concern for Bundibugyo Ebola in DR Congo and Uganda. Biome-correct cluster; the genus we trained on.

who.int/news/PHEIC-bundibugyo-2026-05-17

# Verify the timestamp yourself
$ git log commitments/2026-W19.json --pretty=format:"%aI %s"

This is the pattern across Aqta. Receipts you can verify without us, signed before the moment they matter.

AqtaCore · The artefact

Every AI call returns
a receipt like this.

Ed25519-signed at the source. Hash-chained to the previous receipt. Verifiable offline against the open ATTESTATION-v1 spec, with no Aqta server in the trust path.

# Thirty seconds. No Aqta call.
$ pip install aqta-verify-receipt
$ aqta-verify-receipt receipt.json
✓ Signature valid · Ed25519 · chain ok
receipt.json
specimen · ATTESTATION-v1
{
  "spec_version": "ATTESTATION-v1",
  "request_hash": "a3f9c1b8...",
  "decision": "ALLOWED",
  "model": "claude-sonnet-4-6",
  "provider": "anthropic",
  "policy_version": "v2.4.0",
  "tenant": "your-org",
  "timestamp": "2026-05-19T08:14:23.184Z",
  "chain_prev": "f7a28b3c...",
  "signature": "Ed25519:9k2Lm4nP8qR..."
}
Trust ArchitectureAuditable Spec

Independently verifiable by any auditor · The ATTESTATION-v1 format and the offline receipt verifier tools are public, open, and auditable. Third-party auditors can run compliance checks completely offline with no runtime dependency on Aqta's systems.

What's shipped

Four products.

AqtaCore

Finance · Healthcare · Public sector

Open-spec AI receipts. Verify any call offline.

Every AI request signed at the source. A receipt your regulator can read without calling us.

  • Pre-execution policy, signed receipt per call
  • Hash-chained audit log, exportable for regulatory review
  • EU AI Act Articles 9 / 11 / 13 · DORA · GDPR · MiFID II
boundsPRO

Legal · Compliance · HR

HIPAA-safe document redaction on-device.

On-device contextual layer for clinical-narrative PHI. Documents never leave your machine.

  • Contextual health-data detection · entity recognition · OCR · faces · 40+ regex patterns
  • Ten UI locales · GDPR / HIPAA / FADP
AqtaBio

Public-health research

Spillover forecasts in public git. Signed before the outcome window closes.

Public-health authorities can verify every forecast we acted on was logged before the outcome, not after. Machine-learning ensemble targeting 25 km² tiles. Predictions land in an append-only public ledger; the W19 commit is the worked example.

Testera

Education · Standardised exams

Adaptive exam coaching for high-stakes tests. Voice-first.

For students priced out of private tuition. The model knows what you are bad at, remembers what you will forget, and is designed not to hallucinate answers on covered content. Open at testera.org.