Academy Lesson selfish-mining

Summary

Strategy of withholding blocks to gain disproportionate revenue.

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Graph Neighbors

Direction	Relation	Node
Outgoing	STRENGTHENS	Reorg
Outgoing	DEPENDS_ON	Network Topology Assumption
Outgoing	WEAKENS	Hashpower Majority Assumption
Outgoing	MITIGATED_BY	Faster Block Propagation
Incoming	WEAKENS	Network Topology Assumption
Incoming	WEAKENS	Faster Block Propagation

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