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blockchain: clarify MAX_TARGET by referencing bitcoin core source

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change is no-op as the compact nBits form of both values are equal, that is:
```
>>> from electrum.blockchain import Blockchain
>>> MAX_TARGET1 = 0x00000000FFFF0000000000000000000000000000000000000000000000000000
>>> MAX_TARGET2 = 0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff
>>> Blockchain.bits_to_target(Blockchain.target_to_bits(MAX_TARGET2)) == Blockchain.bits_to_target(Blockchain.target_to_bits(MAX_TARGET1))
True
```
This commit is contained in:
SomberNight
2021-11-13 03:02:31 +01:00
parent 2599010eed
commit 6033471853
1 changed files with 3 additions and 1 deletions
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4
electrum/blockchain.py
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@@ -37,7 +37,9 @@ from .logging import get_logger, Logger
_logger = get_logger(__name__)
HEADER_SIZE = 80 # bytes
MAX_TARGET = 0x00000000FFFF0000000000000000000000000000000000000000000000000000
# see https://github.com/bitcoin/bitcoin/blob/feedb9c84e72e4fff489810a2bbeec09bcda5763/src/chainparams.cpp#L76
MAX_TARGET = 0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff # compact: 0x1d00ffff
class MissingHeader(Exception):