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Correct an error in the rule for nTime; also wording clarification for nonce

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nTime must be strictly greater than the median nTime of the previous 11 blocks, not just greater or equal:
fac0f30482/src/validation.cpp (L2910)
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Daira Hopwood 2017-01-12 23:42:42 +00:00 • committed by GitHub
parent f0371d2f00
commit 2c5ed58d03
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4
_includes/devdoc/ref_block_chain.md
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@ -23,9 +23,9 @@ serialized header format part of the consensus rules.
| 4 | version | int32_t | The [block version][/en/glossary/block]{:#term-block-version}{:.term} number indicates which set of block validation rules to follow. See the list of block versions below.
| 32 | [previous block header hash][]{:#term-previous-block-header-hash}{:.term} | char[32] | A SHA256(SHA256()) hash in internal byte order of the previous block's header. This ensures no previous block can be changed without also changing this block's header.
| 32 | merkle root hash | char[32] | A SHA256(SHA256()) hash in internal byte order. The merkle root is derived from the hashes of all transactions included in this block, ensuring that none of those transactions can be modified without modifying the header. See the [merkle trees section][section merkle trees] below.
| 4 | time | uint32_t | The block time is a Unix epoch time when the miner started hashing the header (according to the miner). Must be greater than or equal to the median time of the previous 11 blocks. Full nodes will not accept blocks with headers more than two hours in the future according to their clock.
| 4 | time | uint32_t | The block time is a Unix epoch time when the miner started hashing the header (according to the miner). Must be strictly greater than the median time of the previous 11 blocks. Full nodes will not accept blocks with headers more than two hours in the future according to their clock.
| 4 | nBits | uint32_t | An encoded version of the target threshold this block's header hash must be less than or equal to. See the nBits format described below.
| 4 | nonce | uint32_t | An arbitrary number miners change to modify the header hash in order to produce a hash below the target threshold. If all 32-bit values are tested, the time can be updated or the coinbase transaction can be changed and the merkle root updated.
| 4 | nonce | uint32_t | An arbitrary number miners change to modify the header hash in order to produce a hash less than or equal to the target threshold. If all 32-bit values are tested, the time can be updated or the coinbase transaction can be changed and the merkle root updated.
The hashes are in internal byte order; the other values are all
in little-endian order.