Slide 01 // Title

VERITY Verity Logo

RWA oracles that bleed when they're wrong.

Casper Agentic Buildathon 2026 · Finalist 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.

🤖
Real Claude Analyst

A genuine Anthropic call narrates the settled timeline and independently risk-flags sources. Numbers stay deterministic (the engineered t2 miss proves the penalty path); keyless fallback built in.

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

LayerTechnology
FrontendNext.js 16 (App Router), React 19, Tailwind v4
ContractOdra (Rust) — post_value + settle entry points
ReputationEWMA (α=0.3) in basis points (0–10,000)
AI AnalystClaude Haiku 4.5 — schema-constrained call over the settled timeline; keyless fallback
Micropaymentsx402 — 402 → pay → 200 flow; CSPR.cloud facilitator verify/settle in live mode
Signingcasper-js-sdk — PEM-key signing + TransactionV1 broadcast
Payment envelopeEIP-712-style typed data (simulated in demo mode; facilitator-settled live)
TestingVitest (unit) + Playwright (E2E) + CodeQL (SAST)
Slide 06 // Live Demo

Pitch & Walkthrough

What Judges Must See

Verity Icon Oracle Terminal

Click "GET /value" → 402 challenge → pay → 200 response. Full x402 flow; live mode settles via the CSPR.cloud facilitator.

📉 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

Casper Integration Points

Casper ToolIntegration
Odra FrameworkReputation registry contract — post_value + settle
casper-js-sdkOracle agent signing + transaction broadcasting
x402 FacilitatorCEP-18 micropayments for pay-per-query reads
Casper TestnetLive deployed package + confirmed post_value → settle lifecycle
CSPR.cloudNode RPC + API access for contract queries
Slide 08 // On-Chain Evidence

Live Testnet Deployment

ItemValue
Verity Contracthash-657a83911a36b3aa2204e47f39c237f15b2ed6f54cbaf6f83b0be7f1d7873c82
Install TX66b6f13ab163abf5265c4007d7438ee178bdbea682adab1c394a6f043765dcc1
post_value TXfc10730db99724ee78bb8c55657fa29054268a61e4fb96b1e794e649cda66e0b
settle TX — the MISS (rep 83.2 → 58.2)ce35dd60774149baa8564e5adc0adbedd1ec624157103666e2615beaa615be21
CEP-18 Tokenhash-541069ed8cad06249f76edb0972932d012badbb256111d3000df06ac1d703be6
Oracle Account016bfd43f7d73c988702e0b1e8657687282bc578b60e9eaaabb1f3aa95ff9a7338
All verifiable at testnet.cspr.live
Slide 09 // Competitive Edge

Why Verity Wins

FeatureStandard OraclesVerity
Accuracy penaltyNoneEWMA score drops visibly
Data pricingFixed subscriptionDynamic: price = f(reputation)
Trust modelStatic, assumedEarned, on-chain, auditable
MonetizationMonthly SaaSx402 micropayments per query
TransparencyOpaque aggregationFull 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

Launch plan: MIT open-source · live at verity.edycu.dev · public demo video · follow the launch on X: @VouchOnCasper.

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) @VouchOnCasper (X)