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PayPal AI Hackathon 2026 Submission
FIPS 180-4 SHA-256 Validated

VeriSettle OS

Proof-Gated B2B Settlement, Multimodal 3-Way Invoice Reconciliation, Enterprise Admin Command Center & Langfuse AI Observability Hub.

Core Architectural Law: “AI/ML Proposes, Deterministic Policy Disposes, PayPal Executes.”
Launch Enterprise Command CenterExplore AI Multi-Modal Sandbox

Live Hold Telemetry & Anomaly Detection Radar

REAL-TIME SANDBOX FREQUENCY
Stealth Hold Telemetry RadarILLUSTRATIVE SAMPLE · not live PayPal data
42 Live Telemetry Pings
Active Auth Node Monitored Hold
Selected Security NodeESCROW

PayPal Authorization Hold #882

$4,250.00
Deterministic Status:PROTECTED
Sandbox Latency:242 ms
Payload Digest:0x8f7d92a1...ef4
Hold Lock Engaged0 Policy Breaches

Deterministic 3-Way Match Architecture

TWO-PHASE SETTLEMENT
Deterministic 3-Way Match Architecture

Autonomous Hold Verification Pipeline

“AI Proposes, Deterministic Policy Disposes, PayPal Executes.”

ILLUSTRATIVE SAMPLE · stage ids and amounts are example values, not PayPal responses

Pipeline Health: 100% Operational
Stage 05 Inspection: Cryptographic Settlement
POST /v2/payments/authorizations/{id}/capture (final_capture: true)
Cryptographic Payload & State

Capture ID: 41B920198VA99210M, SHA-256 Digest: 0x9f4a...81e

Deterministic Security Policy

FIPS 180-4 SHA-256 tamper-evident immutable proof generation

Enterprise Application Workspaces

Signature Freelancer Differentiator

Proofline: Versioned Scope & PayPal Proof

Chat-to-scope extraction, scope creep & change order intelligence, delivery verification & tamper-evident proof receipt.

Open workspace
1st Place Track ($17k)

Autonomous Command Center

Authorization holds, 3-way match engine, AG Grid relational ledger & Bryntum milestone Gantt.

Open workspace
React Admin Suite

Users & Counterparties Admin

Profile pages, 6-month spend charts, GNN/LSTM collusion risk scores & CRUD modal management.

Open workspace
Catalog Admin

Products Catalog & Radar

Channel3 market norm pricing, anomaly Z-scores, Holt-Winters inventory cover & product specs.

Open workspace
Langfuse Multi-Modal

AI Multi-Modal Sandbox & Langfuse

Streaming Q&A, LiveKit voice agent, image generation, sentiment analyzer & Rock-Paper-Scissors.

Open workspace
Media Subsystem

Video & Blueprint Walkthrough

Reverse-engineered YouTube player with Noembed oEmbed sync, Privacy Mode & restriction fallbacks.

Open workspace
Health Radar

System Health & Availability Hub

Live telemetry, latency gauges, OAuth token caching metrics, and circuit-breaker diagnostics.

Open workspace

Live REST & Cosmos.AI MCP Audit Stream

IDEMPOTENCY & FIPS HASHES
VeriSettle Stealth Audit Terminal (Cosmos.AI & PayPal REST)
08:14:02.102PAYPAL_RESTPOST /v2/checkout/orders HTTP/1.1 (intent=AUTHORIZE)
PayPal-Request-Id: 9f8a-21cb-44e1, Amount: $24,800.00 USD, Status: CREATED
08:14:02.344COSMOS_MCPtools/call: channel3_search_products (category: enterprise_server)
Market norm price calculated: $2,480.00/unit (Z-score: +0.02, Standard Deviation: 1.1)
08:14:02.580FIREWALLDeterministic 3-Way Match Firewall Evaluated
Price Variance: 0.00% <= 0.00%, Quantity Variance: 0.00% <= 0.00% -> PASS_PERMITTED
08:14:02.812PAYPAL_RESTPOST /v2/payments/authorizations/88M19204VA293841C/capture
HTTP 201 Created · final_capture: true, Capture ID: 41B920198VA99210M
08:14:02.940CRYPTO_FIPSFIPS 180-4 SHA-256 Digest Minted & Sealed
Digest: 0x9f4a7c81e2b53d4018ca91207e4d8b92 · Merkle Root Verified in AG Grid Ledger
Deterministic Firewall Integrity: Validated
FIPS 180-4 SHA-256 Engine

Multi-Sponsor Prize Integrations ($17,000 Stack Alignment)

AG Grid / AG Studio
10-Table Relational Schema & Custom Money Formats
APIMatic
Server SDK Context Plugin & TypeScript SDK 2.5.0
Bryntum
Finish-to-Start (FS) Hold Gantt & 30-Day Liquidity Forecast
Channel3
Multi-Merchant B2B Catalog Discovery & Price Norm Z-Scores
Render
Multi-Service Cloud Spec (render.yaml Next.js + FastAPI)

Live PayPal Developer Platform Endpoints

Catalog Products & Inventory AdminGET /v1/catalogs/productsBilling PlansGET /v1/billing/plansB2B InvoicesGET /v2/invoicing/invoicesTransaction SearchGET /v1/reporting/transactionsAccount BalancesGET /v1/reporting/balances