Kybos: Demonstrating DAHR's Universal Data Verification

th the Demos SDK, Kybos is a dice game built on the Demos Network, accessible at kybos.demos.sh. Kybos in itself is an engaging predictions market game that combines classic dice rolling with blockchain-based betting and provably fair rolls executed publicly on-chain. Its creation however serves a more fundamental purpose: it's the first simple demonstration of how Demos DAHR can verify data from any API.

DAHR in Action

Kybos showcases DAHR (Data Agnostic HTTP Relay) by proving that external data—in this case, dice roll outcomes, can be fetched from any API and verified on-chain without manipulation. The game's provable fairness isn't just about transparent gambling; it demonstrates that Demos' decentralized infrastructure can validate any off-chain data source in a tamper-proof manner.

This means the same technology powering Kybos' dice rolls can verify:

• Price feeds from financial APIs

• Sports scores from data providers

• Weather data from meteorological services

• Any HTTP-accessible data endpoint

How It Works

Players follow a simple flow:

1. Connect your Demos Wallet

2. Select your bet amount

3. Choose your prediction threshold (Even/Odd, Exact Number, High/Low, or Range)

4. Hit roll, the die tumbles and reveals your results

Behind each roll, DAHR fetches the outcome from an external source API, verifies its authenticity, and records it on-chain. The explorer lets you examine every transaction, making the entire verification process transparent.

Why This Matters

Kybos proves that Demos Network's Omniweb infrastructure enables secure, verifiable connections between off-chain data and on-chain applications. The same cross-chain interoperability and identity features that make Kybos seamless can power any application requiring trusted external data, from DeFi protocols to prediction markets to real-world asset tokenization.

Low fees, no KYC, provable outcomes. Kybos is more than a game, it's the proof of concept for universal data verification.