proinvo.org
Proinvo
Verifiable evidence for every transaction.
Summary
Proinvo is a transaction evidence platform that generates cryptographically signed proof packs for every marketplace transaction. By combining OCR, biometrics, AI flagging, and edge processing, it creates irrefutable evidence that trust and safety teams can query instantly.
Target Audience
Trust and safety operations teams at peer-to-peer marketplaces (e.g., OfferUp, Letgo, Nextdoor, local buy/sell groups)
Economic Engine
Per-proof pack fee ($0.05 per transaction) for marketplaces, or monthly subscription based on transaction volume tiers.
Point of Difference
Unlike generic escrow or dispute resolution tools, Proinvo is designed for high-volume, low-value transactions common in community marketplaces, with zero friction at checkout and automatic evidence creation.
Problem Statement
Community marketplace trust and safety teams rely on he-said-she-said evidence to resolve disputes, wasting hours on manual review of manipulated screenshots and missing context, leading to unfair resolutions and user churn.
Solution
Integrates via API. When a transaction is agreed, Proinvo sends a secure link to both parties. Buyer and seller each complete a biometric check-in (selfie + liveness), scan receipts/invoices using OCR capture, and optionally upload photos of the item (object detection confirms presence). The data is processed on-device (edge computing) for privacy, then aggregated into an entity resolution graph. AI QA reviewer flags inconsistencies (e.g., item photo doesn't match listing). The result is a tamper-evident evidence bundle with a unique hash. Trust and safety teams can pull up the bundle via dashboard or API.
Core Value Proposition
Resolve disputes in 5 minutes instead of 5 days by having irrefutable, pre-built evidence for every transaction.
Killer Features
- Instant Dispute Playback: Chronological, verified timeline of the transaction with photos, biometrics, and timestamps.
- Fraud Flag Heatmap: AI QA reviewer highlights anomalous patterns across the marketplace (e.g., same face, different names).
- Tamper-Proof Certificates: Each evidence pack is hashed on-chain and shareable as a QR code.
- One-Click Evidence Export: Export a CSV or PDF summary for law enforcement or arbitration.
Pros
- Dramatically reduces dispute handling time
- Creates deterrent for fraud
- Easy integration via API
- Privacy-preserving edge processing
- Scalable for any marketplace size
Cons
- Requires user cooperation (buyer and seller must complete steps)
- May add friction to transaction flow
- Privacy concerns over biometric data
- Dependency on device cameras
- Initial adoption hurdle for marketplaces
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