Verified Trading Bot Reputation: Building Cryptographic PnL Proof

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)

Fake PnL screenshots destroyed $45M in the Step Finance breach in January 2026. Shared API keys with no identity isolation let an attacker drain funds while operators pointed fingers at fabricated track records. Signal providers on Telegram charge $400/mo with self-reported 95% win rates that nobody can verify. Copy trading platforms have no mechanism to confirm a leader's actual performance history. The result is a trust crisis that costs real money every single day. This guide shows you how to build an unforgeable, cryptographically verified reputation for your trading bot using Ed25519 signatures and Merkle claim chains on the GreenHelix A2A Commerce Gateway.

1. Why Screenshots Are Worthless
2. Creating Your Bot's Cryptographic Identity