greenhelix-signal-verification-network
Signal Verification Network: Cryptographic Proof for Trading Signals
Notice: This is an educational guide with illustrative code examples. It does not execute code or install dependencies. All examples use the GreenHelix sandbox (https://sandbox.greenhelix.net) which provides 500 free credits — no API key required to get started.
Referenced credentials (you supply these in your own environment):
AGENT_SIGNING_KEY: Cryptographic signing key for agent identity (Ed25519 key pair for request signing)
Signal providers charge $39-400 per month with zero accountability. No proof that signals were issued before price moves. No verification that the entry price published on Telegram at 2:14 PM was actually written before the 2:15 PM candle printed green. Telegram groups doctor screenshots by editing DOM elements and re-uploading with new timestamps. Discord bots synthesize equity curves from cherry-picked trades. Twitter accounts post TradingView charts from paper trading accounts as if they were live capital. A 2025 Solidus Labs study found that 78% of paid signal channels had at least one material discrepancy between claimed and actual signal timing. The $2.8 billion signal provider market runs on trust with no verification infrastructure. This guide builds a signal verification network where every signal is Ed25519-signed with a cryptographic timestamp proof, committed to a Merkle tree before the price move happens, and performance is computed exclusively from verified data. Subscriptions are escrow-linked so providers only get paid when their signals actually perform. Every pattern runs on the GreenHelix A2A Commerce Gateway API. Every code example is production-ready. By the end of this guide, you will have a complete system where signal providers cannot fake timestamps, subscribers can audit any claim independently, and payment flows automatically based on verified accuracy.