Mining Difficulty Tracker

WHAT IT DOES

Mining Difficulty Tracker monitors and analyzes the mining difficulty of any EVM proof-of-work chain. It fetches the current difficulty and a configurable number of historical blocks, then displays the difficulty trend as a percentage change, along with a table showing difficulty progression over time. The tool also provides an estimated next difficulty adjustment based on recent changes in the difficulty level. This is essential for miners planning hardware investments, analysts tracking network security, or anyone who wants to understand how mining difficulty evolves over time.

HOW TO USE

Connect your EVM wallet (optional—the tool works read-only). Select the network from the dropdown. Optionally adjust the "blocks to sample" field (default 20, range 5–100) to control the historical window for analysis. Click "track difficulty" to fetch current and historical difficulty data. The tool displays a grid with current difficulty, percentage change over the sampled period, and an estimated next difficulty. Below the grid, you see detailed metadata and a table showing difficulty values at sampled blocks. Use the "clear" button to reset the display. No signing or approvals required.

TECHNICAL MECHANISM

The tool uses ethers.js v5.7.2 via the BGWallet provider. It fetches the latest block number, then retrieves the latest block to get the current difficulty. It then fetches a configurable number of recent blocks by iterating backwards from the latest block. For each block, it captures the block number, difficulty, and timestamp. The difficulty values are stored as ethers.BigNumber objects for precision. The percentage change is calculated as (lastDifficulty - firstDifficulty) / firstDifficulty * 100. The estimated next difficulty is computed by taking the most recent 10 blocks, calculating the average change per block, and projecting it forward by one block. The difficulty values are formatted into human-readable units (M, B, T) for display.

WHAT IT CANNOT SEE

This tool cannot predict future difficulty adjustments with certainty—the estimate is based on a simple projection and may not account for protocol-level adjustment rules or sudden hashrate changes. It cannot analyze non-EVM chains—only EVM-compatible networks are supported. It cannot detect changes in mining hardware efficiency or network hash rate distribution—it only sees the aggregated difficulty value. It cannot monitor difficulty in real-time—you must click to refresh. Historical data is limited by the RPC provider's block availability; older blocks may be unavailable. The tool does not account for difficulty bomb or protocol-level adjustments beyond the simple projection.

PLEASE NOTE

Works exclusively on EVM-compatible proof-of-work chains that use difficulty-based consensus: Ethereum Mainnet (pre-merge), Goerli, Sepolia, Polygon, Arbitrum, and Optimism. Note that Ethereum is now proof-of-stake (post-merge), so difficulty tracking is not meaningful for Ethereum Mainnet after The Merge. This is a read-only, free analytics tool—use it for mining research and network analysis, but always cross-check with multiple sources for accurate mining decisions.