06 / Developers

Deterministic receipts over HTTP.

Proof Engine v1, the public stateless Receipt API beta and the deterministic scenario simulator are operational. The API evaluates caller-supplied evidence; it does not monitor services, store customer records or move funds.

Receipt enginev1.0.0 operationalPublic APIBeta operationalSolana programNot deployed
Developer truth:/api/v1 creates and verifies receipts, reports public activity and checks PVTY DEX route availability. JavaScript, Python, CLI, GitHub Action and MCP release artifacts are public for evaluation; registry publication and production hardening remain separate evidence gates.

01 / Five-minute quickstart

Create and verify a receipt before installing anything.

No wallet, token purchase or account is required. Run the known-answer health check, create the example receipt, verify the saved file, then publish a reproducible result only if you want it reviewed for the Proof Challenge.

Step 130 seconds

Confirm the live API

The response includes the current API version and a deterministic known-answer check.

curl -sS https://pactverity.com/api/v1/health
Steps 2–3Under five minutes

Create, save and verify

Use the two commands in the Receipt API section below. A matching digest proves deterministic consistency of the submitted data—not that the measurements are true.

Jump to working commands

Step 4: publish evidence, not promotion

Fork or reproduce a known-answer, failure-path or integration case and submit the public repository, exact command and receipt digest to the Proof Challenge. Verified entries begin at zero and are added only after manual reproduction.

Open the Proof Challenge

02 / Operating stack

Three inspectable execution surfaces.

The browser engine and API use the same published receipt rules. The simulator is a separate deterministic synthetic workload and never submits a transaction.

Proof Enginev1

Create and recheck

pactverity.assurance-receipt.v1 records normalized terms, supplied evidence, four checks, outcome and a domain-separated SHA-256 digest.

Receipt APIBeta

Stateless HTTP evaluation

POST strict JSON to create a receipt or independently verify an exported one. Public health and OpenAPI documents expose the service boundary.

Scenario simulatorLive

Deterministic stress model

The default run models 250,000 synthetic agreements at $100 each and executes 1,000,000 checks with a reproducible scenario digest. The figure is synthetic and is not production service or escrow activity.

Integration Challenge Public evidence benchmark Download complete developer kit Integration evidence register API descriptor Live health response Live PVTY market status OpenAPI 3.1 JSON Run the simulator

03 / Installable tooling

Use HTTP directly—or start from a versioned release artifact.

The downloadable packages are generated from the public repository. They are evaluation releases, not claims of registry publication, independent audit or production suitability.

JavaScriptv0.1.0

SDK and CLI

Zero-dependency ESM client with health, create, verify, publish and public-summary commands.

Download npm artifact
Pythonv0.1.0

SDK and CLI

Standard-library client packaged as a wheel with the same bounded Receipt API operations.

Download Python wheel
MCPv0.1.0

Local stdio server

Four MCP tools for health, receipt creation, receipt verification and public-summary lookup.

Download MCP artifact
JavaScript source Python source GitHub Action MCP source Release checksums

04 / Receipt API

Create, save, then verify.

These calls use the operational public beta. The first command requires jq only to extract the receipt object from the response envelope into a file for the second command.

Create a receipt

curl -sS -X POST https://pactverity.com/api/v1/receipts \
  -H 'Content-Type: application/json' \
  --data-binary '{
    "agreementId": "demo-2026-08-04",
    "serviceName": "Example API availability",
    "providerReference": "provider-demo",
    "buyerReference": "buyer-demo",
    "issuedAt": "2026-08-04T12:05:00.000Z",
    "criteria": {
      "maxLatencyMs": 900,
      "minUptimeBps": 9950,
      "maxFreshnessSeconds": 120,
      "expectedOutputSha256": ""
    },
    "evidence": {
      "measuredLatencyMs": 642,
      "uptimeBps": 9988,
      "freshnessSeconds": 42,
      "observedOutputSha256": "",
      "observedAt": "2026-08-04T12:04:30.000Z"
    }
  }' | jq '.receipt' > pactverity-receipt.json

Verify the saved receipt

curl -sS -X POST https://pactverity.com/api/v1/receipts/verify \
  -H 'Content-Type: application/json' \
  --data-binary @pactverity-receipt.json

Caller-supplied evidence

A valid response proves deterministic consistency of the submitted data and receipt. It does not prove that the measurements were independently observed, historically complete or true.

05 / Deployment boundary

Operational off-chain. Pending on-chain.

Status is stated per component so an API response cannot be mistaken for custody, settlement or network adoption.

PactVerity technical components, deployment status and responsibilities
ComponentStatusResponsibility
Proof Engine v1OperationalBrowser-based receipt creation, export, import, deterministic rechecking and optional off-chain wallet signature verification.
Receipt API betaOperationalBounded, stateless receipt creation and verification plus a public known-answer health check.
Scenario simulatorOperationalRuns reproducible synthetic workloads. Its nominal value is neither TVL nor customer or historical transaction volume.
Solana programsNot deployedPlanned job registry, escrow, provider bonds, verifier stake, challenges, settlement, refunds and fees.
PVTY mintLive on mainnet50,000,000 original issuance; burns can reduce current supply; mint and freeze authorities removed; current distribution is publicly visible on-chain.
PVTY market-status toolOperationalRead-only Jupiter route detection for the canonical mint. A route response is current access evidence, not a guarantee of execution price, liquidity depth or exit capacity.
Developer release artifactsPublic v0.1.0JavaScript, Python, CLI, GitHub Action and MCP evaluation releases. Registry publication, external review and production hardening remain pending.
Workers and indexerPlannedFuture independent observations, evidence adapters and searchable on-chain views.

06 / Planned architecture

On-chain rules. Off-chain evidence.

If deployed after testing and audit, Solana programs would hold compact job state and assets while purpose-built workers would collect or attest service evidence.

Future Solana layer

Value and state

Would provide stablecoin escrow, disclosed collateral, challenge state and deterministic settlement instructions. None of those capabilities is live today.

Operating evidence layer+

Receipts and reproducibility

Applies measurable terms to supplied evidence now. Independent monitoring and trusted data collection remain separate future responsibilities.

07 / Primary references

Build from official standards.

Build status

Evidence stack operational. Solana value layer pending.

API beta live