A layer on the ACTIS standard: evidence bundles, offline verification, and the Evidence Viewer. Cryptographic, insurer-grade.
Tamperable. Not portable. Not evidence. They prove something happened, not what it meant.
When an agent transaction fails, responsibility is unclear. Disputes require guesswork and arbitration.
Without sealed, replayable evidence, legal review and insurer-grade reporting are impossible.
Tamper-evident bundles. Portable. Replayable. They prove what happened and what it meant.
Default Blame Logic assigns responsibility deterministically. No guesswork, no arbitration loop.
Sealed, replayable evidence. Legal review and insurer-grade reporting out of the box.
Two clean layers. Agents emit signed transcripts. The verifier processes them offline.
Pact is an open layer on the ACTIS standard. On top of ACTIS, Pact gives you:
Sealed ZIP. Transcript, verification report, settlement records. Portable forever.
CLI. Hash chain, signatures, constitution compliance, replay determinism. No network.
Local drag-drop UI. Verdict, timeline, DBL panel. No server required.
Signed responsibility attribution. NO_FAULT or RESPONSIBLE_ACTOR.
PDF formatted for legal review. Signed, timestamped, ready for counsel.
Audit-grade report formatted for claims and underwriting review.
Identity and credential state across deals. Snapshot per pack; delta for multi-deal audit.
Sealed, replayable evidence bundles — not dashboards. Independently verifiable years later, without trusting the operator.
Default Blame Logic assigns responsibility deterministically. No human review loop, no subjective interpretation.
Trust lives in the verifier, not the vendor. Every artifact validates offline — no network, no proprietary services.
Works on any settlement layer: stablecoins, traditional payments, blockchains, internal ledgers, bank transfers, or API credit systems.
One party can generate Pact evidence even if the counterparty doesn't run Pact, doesn't know about Pact, or uses a normal API.
Pact sits above transactions, recording what happened. It's not a marketplace or protocol — just an integrity layer.
Works across agent↔agent, agent↔API, agent↔human, and enterprise automation. Evidence aggregates into verifiable agent history passport.
Buyer agent acquires a capability from Provider agent. Example outcomes:
Signed transcript, verification PASS, settlement confirmation. Full evidence bundle generated.
Price or rate limit breach detected. Negotiation aborts before settlement. Evidence captures violation.
Settlement attempt recorded. Failure event sealed in pack. Delivery SLA breach documented.
# Install pnpm install --frozen-lockfile # Run demo + verify packs bash demo/h5-golden/run_all.sh bash design_partner_bundle/verify_all.sh # Open Evidence Viewer (local) pnpm --filter @pact/evidence-viewer dev
Pact is an open layer on the ACTIS standard. It sits above any rail, platform, or runtime.
Wrap your settlement layer with Pact evidence generation. Every transaction becomes independently auditable — without changing your core flow.
Integrate the Pact runtime SDK so agents you host emit signed transcripts natively. Accountability ships as a feature, not an afterthought.
Pact produces insurer-grade evidence summaries out of the box. Build AI transaction policies on top of verifiable, tamper-evident data.
Consume GC-ready PDFs and signed judgment records directly. Disputes resolved from evidence, not hearsay.
Offer Pact-verified execution environments as a premium tier. Give enterprise customers the accountability layer they need to deploy autonomous agents.
Pact builds on the open ACTIS standard. Academic institutions and standards bodies are welcome to build on, audit, and extend both.
We're working with a small group of design partners to shape how Pact integrates with real-world agent infrastructure. If you're building something that requires provable accountability — reach out.
Open protocol. Verifier-first. Offline-capable.