Slide 01 // Title

VERITY

RWA oracles that bleed when they're wrong.

Casper Agentic Buildathon 2026 Vouch Suite

Reputation Registry

Reputation Score9,247 / 10,000

EWMA α = 0.3Miss threshold: 2%

Query price0.0092 CSPR

Slide 02 // The Problem

Oracles face zero penalty
for delivering bad data.

$0

penalty when an oracle delivers incorrect pricing data

Static

trust assumptions — reputation is fixed, not earned

∅

no price signal for data quality — good and bad data cost the same

Blind

consumers can't distinguish reliable oracles from unreliable ones

Slide 03 // The Solution

Reputation that
bleeds on-chain.

📊

EWMA Scoring

score = α × accuracy + (1-α) × score_old — exponentially weighted, stored in basis points (0–10,000).

💉

Pain When Wrong

Miss > 2% threshold → reputation drops → query price drops → revenue falls. The oracle literally earns less for being wrong.

💰

x402 Micropayments

Pay-per-query via Casper x402. Price = BASE × reputation. Higher rep = higher price = market discipline.

🤖

AI Reasoning

Multi-source aggregation with conflict detection. The t2 engineered miss proves the system catches errors.

Slide 04 // Core Flow

Oracle Pipeline

01 · Source Aggregation

3 independent sources provide price data for the RWA asset

02 · AI Reasoning

Detect conflicts, weigh evidence, produce consensus value

03 · Post Value

Oracle posts value to Odra contract via casper-js-sdk

04 · Settlement

Ground truth revealed — was the oracle right or wrong?

05 · EWMA Update

Reputation score adjusts: accuracy → EWMA → new score on-chain

06 · Price Adjustment

Query price recalculated: BASE_PRICE × reputation

Slide 05 // Architecture

Technical Architecture

Layer	Technology
Frontend	Next.js 16 (App Router), React 19, Tailwind v4
Contract	Odra (Rust) — post_value + settle entry points
Reputation	EWMA (α=0.3) in basis points (0–10,000)
Micropayments	x402 (CSPR.cloud facilitator) — pay-per-query
Signing	CSPR.click AI Agent Skill (casper-js-sdk)
Credentials	casper-eip-712 (JS) — EIP-712 authorization
Testing	Vitest (unit) + Playwright (E2E) + CodeQL (SAST)

Slide 06 // Live Demo

Pitch & Walkthrough

What Judges Must See

Oracle Terminal

Click "GET /value" → 402 challenge → EIP-712 pay → 200 response. A real x402 round-trip.

📉 The Engineered Miss

At t2: posted value 1950 vs truth 2040 (4.41% error). Watch the reputation score drop in real-time.

📊 Reputation Curve

Interactive chart showing score over time — the visible dip at t2 proves accountability.

💰 Consumer LTV

Dynamic pricing panel showing how query cost tracks reputation — market discipline in action.

Slide 07 // Casper Integration

5 Casper Integration Points

Casper Tool	Integration
Odra Framework	Reputation registry contract — post_value + settle
casper-js-sdk	Oracle agent signing + transaction broadcasting
x402 Facilitator	CEP-18 micropayments for pay-per-query reads
casper-eip-712	EIP-712 typed data authorization for x402 payments
CSPR.cloud	Node RPC + API access for contract queries

Slide 08 // On-Chain Evidence

Live Testnet Deployment

Item	Value
Verity Contract	hash-657a83911a36b3aa2204e47f39c237f15b2ed6f54cbaf6f83b0be7f1d7873c82
Install TX	66b6f13ab163abf5265c4007d7438ee178bdbea682adab1c394a6f043765dcc1
CEP-18 Token	hash-541069ed8cad06249f76edb0972932d012badbb256111d3000df06ac1d703be6
Oracle Account	016bfd43f7d73c988702e0b1e8657687282bc578b60e9eaaabb1f3aa95ff9a7338

All verifiable at testnet.cspr.live

Slide 09 // Competitive Edge

Why Verity Wins

Feature	Standard Oracles	Verity
Accuracy penalty	None	EWMA score drops visibly
Data pricing	Fixed subscription	Dynamic: price = f(reputation)
Trust model	Static, assumed	Earned, on-chain, auditable
Monetization	Monthly SaaS	x402 micropayments per query
Transparency	Opaque aggregation	Full reasoning log + sources

Slide 10 // Roadmap

What's Next

NOW

Working prototype on Casper Testnet

EWMA scoring, x402 pay-to-read, engineered miss demo

30 DAYS

Multi-source aggregation

5+ independent data sources with weighted confidence scoring

60 DAYS

Mainnet deployment

Production CEP-18 token, real x402 facilitator integration

90 DAYS

Oracle federation

Multiple oracles competing on reputation — market-driven data quality

Slide 11 // Team

Built By

Edy Cu

Solo Developer · AI-Native Methodology

→ 60+ hackathon projects shipped

→ Full-stack: Rust contracts + Next.js dashboards + AI agents

→ Built the entire Vouch suite (3 projects) for this buildathon

Slide 12 // Conclusion

The first oracle that
pays the price
for being wrong.

Verity — RWA oracles that bleed when they're wrong.

Conclave · governance Verity · oracle Bastion · compliance

Live Website Pitch Video (YouTube) Codebase (GitHub)