blockvalidity.h
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blockvalidity.h
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	// Copyright (c) 2018 The Bitcoin developers
	// Distributed under the MIT software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	#ifndef BITCOIN_BLOCKVALIDITY_H
	#define BITCOIN_BLOCKVALIDITY_H

	#include <cstdint>

	enum class BlockValidity : uint32_t {
	/**
	* Unused.
	*/
	UNKNOWN = 0,

	/**
	* Reserved (was HEADER).
	*/
	RESERVED = 1,

	/**
	* All parent headers found, difficulty matches, timestamp >= median
	* previous, checkpoint. Implies all parents are also at least TREE.
	*/
	TREE = 2,

	/**
	* Only first tx is coinbase, 2 <= coinbase input script length <= 100,
	* transactions valid, no duplicate txids, size, merkle root.
	* Implies all parents are at least TREE but not necessarily TRANSACTIONS.
	* When all parent blocks also have TRANSACTIONS, CBlockIndex::nChainTx and
	* CBlockIndex::nChainSize will be set.
	*/
	TRANSACTIONS = 3,

	/**
	* Outputs do not overspend inputs, no double spends, coinbase output ok, no
	* immature coinbase spends, BIP30.
	* Implies all parents are also at least CHAIN.
	*/
	CHAIN = 4,

	/**
	* Scripts & signatures ok. Implies all parents are also at least SCRIPTS.
	*/
	SCRIPTS = 5,
	};

	#endif // BITCOIN_BLOCKVALIDITY_H