Program Overview

The Validator History Program is a foundational component of Jito StakeNet that creates an on-chain record of verified Solana validator data, storing up to 512 epochs of history per validator.

What It Does

The program aggregates diverse validator metrics that are typically scattered across different data sources into a single, easily accessible on-chain account. This includes:

• Runtime-accessible data: validator performance history, validator commission, MEV commission
• Gossip network data: validator IP addresses, software versions, and client types
• Network position data: total active stake per validator, stake rank, and superminority status

All these fields are consolidated into a single ValidatorHistory account per validator, enabling seamless composition with other on-chain programs while providing extensive historical lookback capabilities.

Why It Matters

Before the Validator History Program, accessing comprehensive validator data required querying multiple disparate sources and APIs. This created friction for:

• Stake pool managers needing to evaluate validator performance over time
• On-chain programs requiring historical validator context for decision-making
• Network participants seeking transparent, verifiable validator metrics

By consolidating this data on-chain with a long historical record, the program enables more sophisticated validator selection algorithms and transparent network analysis.

Role in StakeNet

The Validator History Program serves as the data foundation for StakeNet's autonomous operations. The Jito Steward Program relies on this historical data to make informed staking decisions, using the comprehensive validator metrics to optimize stake allocation across the network.

Core Accounts

The Validator History Program operates through three main account types:

• Config: Global configuration and admin authorities for the Validator History Program
• ValidatorHistory: Tracks historical metadata on-chain for a single validator using a circular buffer structure
• ClusterHistory: Stores network-wide cluster information and metrics

This architecture ensures efficient data storage while maintaining the flexibility needed for complex validator analysis and automated decision-making.