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@ -68,7 +68,7 @@ var ( |
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// codebase, inherently breaking if the engine is swapped out. Please put common
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// error types into the consensus package.
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var ( |
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errZeroBlockTime = errors.New("timestamp equals parent's") |
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errOlderBlockTime = errors.New("timestamp older than parent") |
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errTooManyUncles = errors.New("too many uncles") |
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errDuplicateUncle = errors.New("duplicate uncle") |
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errUncleIsAncestor = errors.New("uncle is ancestor") |
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@ -255,9 +255,9 @@ func (ethash *Ethash) verifyHeader(chain consensus.ChainReader, header, parent * |
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} |
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} |
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if header.Time <= parent.Time { |
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return errZeroBlockTime |
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return errOlderBlockTime |
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} |
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// Verify the block's difficulty based in its timestamp and parent's difficulty
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// Verify the block's difficulty based on its timestamp and parent's difficulty
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expected := ethash.CalcDifficulty(chain, header.Time, parent) |
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if expected.Cmp(header.Difficulty) != 0 { |
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