The Best Difficulty represents the most complex share your miner has successfully solved and submitted. Not all shares are equal shares vary in difficulty, with higher-difficulty shares being rarer and more valuable.

A share’s difficulty determines its significance... low-difficulty shares help pools track miner contributions but don't contribute to finding a block.

High-difficulty shares indicate that the miner is closer to discovering a block.

If a share's difficulty meets or exceeds the Bitcoin network difficulty, it becomes a valid block, meaning the miner has successfully mined a block. The higher the difficulty of a share, the greater its chance of being accepted as a full block.

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