DATA CONTRACT GATE v1.0.0

Know if the file passes. Before money moves.

Deterministic acceptance evidence for CSV, JSON, and JSONL deliverables. Turn vague requirements into a contract, run every check locally, and keep a reproducible audit trail.

Download verifier See the $12 audit
Standard library only Zero network calls SHA-256 anchored
audit.jsonDETERMINISTIC

$ python audit_data.py orders.csv --contract contract.json

reading 24,812 records...

schema.requiredPASS
order_id.uniquePASS
total.min_valueFAIL
47 failuresevidence: rows [109, 716, 904, …]raw values: withheld

audit complete // exit 1

PACKAGE SHA-2560b60237f6f54a871…d0df7d33c4e2
01Explicit rulesNo hidden assumptions
02Safe evidenceIndices, never cell values
03Exact replaySame input, same result
04PortablePython 3.10+, no packages

CHECK SURFACE 08 CORE FAMILIES

Acceptance criteria that machines can actually enforce.

Every requirement becomes a named check with a pass/fail result, bounded evidence, and the exact contract used to produce it.

01Required fields
02Type constraints
03Null-rate ceilings
04Enums and regex
05Numeric bounds
06Composite uniqueness
07Malformed CSV rows
08Nested JSON paths

ONE RUN FOUR ARTIFACTS

A decision package, not a screenshot.

contract.json

The rules

Machine-readable acceptance criteria, field paths, limits, and uniqueness definitions.

audit.json

The authority

Structured results for automation, settlement gates, CI jobs, and downstream review.

audit.md

The explanation

A concise human report with totals, failure categories, assumptions, and replay steps.

sha256.txt

The fingerprint

Input and contract hashes that bind the report to the exact evidence examined.

DONE-FOR-YOU 24H DELIVERY

Send the file. Get a defensible answer.

The $12 service includes one complete audit of one file and one re-audit after corrections. Missing business rules are surfaced—not invented to force a pass.

  1. 1
    DefineProvide the file and acceptance criteria.
  2. 2
    AuditRules are encoded, executed, and reviewed.
  3. 3
    DecideReceive artifacts, evidence, hashes, and replay command.
VERIFY THE VERIFIER0b60237f6f54a8717f8190dff7429b41dbf2e95d445c4a9e332bd0df7d33c4e2