DUCAT Oracle

Privacy-preserving price threshold commitments using Chainlink CRE and Nostr.

Overview

Creates Hash160 commitments to BTC/USD price thresholds that reveal their secret only when breached.

Handlers

Handler	Trigger	Description
createQuote	HTTP	Create new threshold commitment
evaluateQuotes	HTTP	Batch check quotes, reveal secrets on breach
generateQuotesParallel	Cron	Auto-generate quotes across rate range

Quick Start

go mod download
export DUCAT_PRIVATE_KEY="<32-byte-hex>"
export DUCAT_CLIENT_SECRET="<secret>"
go test ./...
cd hmac && GOOS=wasip1 GOARCH=wasm go build -o main.wasm

Structure

hmac/       CRE WASM workflow
crypto/     Crypto library (testable, non-WASM)
shared/     Shared types and validation
wasmtest/   Handler tests with mock runtime

Configuration

See hmac/config.json for workflow settings and secrets.yaml for secret mappings.

Cryptography

• HMAC-SHA256: Deterministic secret derivation
• Hash160: Bitcoin-compatible commitment
• Schnorr (BIP-340): Event signatures
• DON Consensus: Byzantine fault tolerant price data

License

MIT