fix: validate proof of work on block acceptance - #115

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Jiyacodex wants to merge 9 commits into

StabilityNexus:mainfrom

Jiyacodex:test-pow-validation

Commits on Jul 6, 2026

fix: validate proof of work on block acceptance

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799550d
fix: handle invalid proof of work explicitly

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24636cf
style: remove trailing whitespace

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9423173
fix: validate difficulty before proof-of-work checks

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add5a77

Commits on Jul 16, 2026

merge: incorporate upstream timestamp validation and CI workflows

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1fed17c
test: anchor _chain_with_tx timestamps to previous block instead of wall-clock

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fda0c04

Commits on Jul 18, 2026

Validate serialized block hashes during deserialization

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472fff1

Commits on Aug 9, 2026

chore: ignore local test environment

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593463a
Merge upstream main into test-pow-validation

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d10f956