from __future__ import division
import itertools
+import random
+import time
-from bitcoin import data as bitcoin_data
+from twisted.python import log
-class CompressedList(bitcoin_data.Type):
- def __init__(self, inner):
- self.inner = inner
-
- def read(self, file):
- values = bitcoin_data.ListType(self.inner).read(file)
- if values != sorted(set(values)):
- raise ValueError("invalid values")
- references = bitcoin_data.ListType(bitcoin_data.VarIntType()).read(file)
- return [values[reference] for reference in references]
-
- def write(self, file, item):
- values = sorted(set(item))
- values_map = dict((value, i) for i, value in enumerate(values))
- bitcoin_data.ListType(self.inner).write(file, values)
- bitcoin_data.ListType(bitcoin_data.VarIntType()).write(file, [values_map[subitem] for subitem in item])
+import p2pool
+from p2pool import skiplists
+from p2pool.bitcoin import data as bitcoin_data, script
+from p2pool.util import memoize, expiring_dict, math
merkle_branch_type = bitcoin_data.ListType(bitcoin_data.ComposedType([
share_data_type = bitcoin_data.ComposedType([
('previous_share_hash', bitcoin_data.PossiblyNone(0, bitcoin_data.HashType())),
- ('previous_shares_hash', bitcoin_data.HashType()),
- ('target2', bitcoin_data.FloatingIntegerType()),
+ ('target', bitcoin_data.FloatingIntegerType()),
('nonce', bitcoin_data.VarStrType()),
])
coinbase_type = bitcoin_data.ComposedType([
- ('identifier', bitcoin_data.StructType('<Q')),
+ ('identifier', bitcoin_data.FixedStrType(8)),
('share_data', share_data_type),
])
share1a_type = bitcoin_data.ComposedType([
- ('header', bitcoin_data.block_header_type), # merkle_header not completely needed
+ ('header', bitcoin_data.block_header_type),
('share_info', share_info_type),
('merkle_branch', merkle_branch_type),
])
('other_txs', bitcoin_data.ListType(bitcoin_data.tx_type)),
])
-shares_type = CompressedList(bitcoin_data.VarStrType())
-
def calculate_merkle_branch(txs, index):
hash_list = [(bitcoin_data.tx_type.hash256(tx), i == index, []) for i, tx in enumerate(txs)]
new_script=gentx['tx_outs'][-1]['script'],
)
-def share_info_to_gentx(share_info, chain, net):
+def share_info_to_gentx(share_info, block_target, tracker, net):
return generate_transaction(
- previous_share2=chain.share2s[share_info['share_data']['previous_share_hash']],
- nonce=share_info['share_data']['nonce'],
+ tracker=tracker,
+ previous_share_hash=share_info['share_data']['previous_share_hash'],
new_script=share_info['new_script'],
subsidy=share_info['subsidy'],
+ nonce=share_info['share_data']['nonce'],
+ block_target=block_target,
net=net,
)
class Share(object):
+ @classmethod
+ def from_block(cls, block):
+ return cls(block['header'], gentx_to_share_info(block['txs'][0]), other_txs=block['txs'][1:])
+
+ @classmethod
+ def from_share1a(cls, share1a):
+ return cls(**share1a)
+
+ @classmethod
+ def from_share1b(cls, share1b):
+ return cls(**share1b)
+
+ __slots__ = 'header previous_block share_info merkle_branch other_txs timestamp share_data new_script subsidy previous_hash previous_share_hash target nonce bitcoin_hash hash time_seen shared peer'.split(' ')
+
def __init__(self, header, share_info, merkle_branch=None, other_txs=None):
if merkle_branch is None and other_txs is None:
raise ValueError('need either merkle_branch or other_txs')
+ if other_txs is not None:
+ new_merkle_branch = calculate_merkle_branch([dict(version=0, tx_ins=[], tx_outs=[], lock_time=0)] + other_txs, 0)
+ if merkle_branch is not None:
+ if merke_branch != new_merkle_branch:
+ raise ValueError('invalid merkle_branch and other_txs')
+ merkle_branch = new_merkle_branch
+
+ if len(merkle_branch) > 16:
+ raise ValueError('merkle_branch too long!')
+
self.header = header
+ self.previous_block = header['previous_block']
self.share_info = share_info
self.merkle_branch = merkle_branch
self.other_txs = other_txs
+ self.timestamp = self.header['timestamp']
+
self.share_data = self.share_info['share_data']
self.new_script = self.share_info['new_script']
self.subsidy = self.share_info['subsidy']
- self.previous_share_hash = self.share_data['previous_share_hash']
- self.previous_shares_hash = self.share_data['previous_shares_hash']
- self.target2 = self.share_data['target2']
+ if len(self.new_script) > 100:
+ raise ValueError('new_script too long!')
- self.hash = bitcoin_data.block_header_type.hash256(header)
-
- @classmethod
- def from_block(cls, block):
- return cls(block['header'], gentx_to_share_info(block['txs'][0]), other_txs=block['txs'][1:])
-
- @classmethod
- def from_share1a(cls, share1a):
- return cls(**share1a)
-
- @classmethod
- def from_share1b(cls, share1b):
- return cls(**share1b)
+ self.previous_hash = self.previous_share_hash = self.share_data['previous_share_hash']
+ self.target = self.share_data['target']
+ self.nonce = self.share_data['nonce']
+
+ if len(self.nonce) > 100:
+ raise ValueError('nonce too long!')
+
+ self.bitcoin_hash = bitcoin_data.block_header_type.hash256(header)
+ self.hash = share1a_type.hash256(self.as_share1a())
+
+ if self.bitcoin_hash > self.target:
+ print 'hash', hex(self.bitcoin_hash)
+ print 'targ', hex(self.target)
+ raise ValueError('not enough work!')
+
+ if script.get_sigop_count(self.new_script) > 1:
+ raise ValueError('too many sigops!')
+
+ # XXX eww
+ self.time_seen = time.time()
+ self.shared = False
+ self.peer = None
- def as_block(self):
- if self.txs is None:
+ def as_block(self, tracker, net):
+ if self.other_txs is None:
raise ValueError('share does not contain all txs')
- return dict(header=self.header, txs=self.txs)
+ gentx = share_info_to_gentx(self.share_info, self.header['target'], tracker, net)
+
+ return dict(header=self.header, txs=[gentx] + self.other_txs)
+
+ def as_share1a(self):
+ return dict(header=self.header, share_info=self.share_info, merkle_branch=self.merkle_branch)
- def as_share1(self):
- return dict(header=self.header, gentx_info=self.gentx_info)
+ def as_share1b(self):
+ return dict(header=self.header, share_info=self.share_info, other_txs=self.other_txs)
- def check(self, chain, height, previous_share2, net):
- if self.chain_id_data != chain.chain_id_data:
- raise ValueError('wrong chain')
+ def check(self, tracker, now, net):
+ import time
+ if self.previous_share_hash is not None:
+ if self.header['timestamp'] <= math.median((s.timestamp for s in itertools.islice(tracker.get_chain_to_root(self.previous_share_hash), 11)), use_float=False):
+ raise ValueError('share from too far in the past!')
- if self.hash > net.TARGET_MULTIPLIER*bitcoin_data.bits_to_target(self.header['bits']):
- raise ValueError('not enough work!')
+ if self.header['timestamp'] > now + 2*60*60:
+ raise ValueError('share from too far in the future!')
- gentx, shares, merkle_root = gentx_info_to_gentx_shares_and_merkle_root(self.gentx_info, chain, net)
+ gentx = share_info_to_gentx(self.share_info, self.header['target'], tracker, net)
- if merkle_root != self.header['merkle_root']:
- raise ValueError("gentx doesn't match header")
+ if len(gentx['tx_ins'][0]['script']) > 100:
+ raise ValueError('''coinbase too large!''')
- return Share2(self, shares, height)
-
-class Share2(object):
- '''Share with associated data'''
-
- def __init__(self, share, shares, height):
- self.share = share
- self.shares = shares
- self.height = height
+ if check_merkle_branch(gentx, self.merkle_branch) != self.header['merkle_root']:
+ raise ValueError('''gentx doesn't match header via merkle_branch''')
- self.shared = False
+ if self.other_txs is not None:
+ if bitcoin_data.merkle_hash([gentx] + self.other_txs) != self.header['merkle_root']:
+ raise ValueError('''gentx doesn't match header via other_txs''')
+
+ if len(bitcoin_data.block_type.pack(dict(header=self.header, txs=[gentx] + self.other_txs))) > 1000000 - 1000:
+ raise ValueError('''block size too large''')
def flag_shared(self):
self.shared = True
+
+ def __repr__(self):
+ return '<Share %s>' % (' '.join('%s=%r' % (k, v) for k, v in self.__dict__.iteritems()),)
+
+def get_pool_attempts_per_second(tracker, previous_share_hash, net, dist=None):
+ if dist is None:
+ dist = net.TARGET_LOOKBEHIND
+ near = tracker.shares[previous_share_hash]
+ far = tracker.shares[tracker.get_nth_parent_hash(previous_share_hash, dist - 1)]
+ attempts = tracker.get_work(near.hash) - tracker.get_work(far.hash)
+ time = near.timestamp - far.timestamp
+ if time == 0:
+ time = 1
+ return attempts//time
def generate_transaction(tracker, previous_share_hash, new_script, subsidy, nonce, block_target, net):
- previous_share2 = tracker.shares[previous_share_hash] if previous_share_hash is not None else None
- #previous_share2 = chain.shares
- #previous_shares
- #shares =
- #shares = (previous_share2.shares if previous_share2 is not None else [net.SCRIPT]*net.SPREAD)[1:-1] + [new_script, new_script]
-
- chain = list(itertools.islice(tracker.get_chain(previous_share_hash), net.CHAIN_LENGTH))
- if len(chain) < 100:
- target2 = bitcoin_data.FloatingIntegerType().truncate_to(2**256//2**32 - 1)
+ height, last = tracker.get_height_and_last(previous_share_hash)
+ if height < net.TARGET_LOOKBEHIND:
+ target = bitcoin_data.FloatingIntegerType().truncate_to(2**256//2**20 - 1)
else:
- attempts_per_second = sum(bitcoin_data.target_to_average_attempts(share.target) for share in itertools.islice(chain, 0, max(0, len(chain) - 1)))//(chain[0].timestamp - chain[-1].timestamp)
- pre_target = 2**256*net.SHARE_PERIOD//attempts_per_second
- pre_target2 = math.clip(pre_target, (previous_share2.target*9//10, previous_share2.target*11//10))
- pre_target3 = math.clip(pre_target2, (0, 2**256//2**32 - 1))
- target2 = bitcoin_data.FloatingIntegerType().truncate_to(pre_target3)
-
+ attempts_per_second = get_pool_attempts_per_second(tracker, previous_share_hash, net)
+ pre_target = 2**256//(net.SHARE_PERIOD*attempts_per_second) - 1
+ previous_share = tracker.shares[previous_share_hash] if previous_share_hash is not None else None
+ pre_target2 = math.clip(pre_target, (previous_share.target*9//10, previous_share.target*11//10))
+ pre_target3 = math.clip(pre_target2, (0, net.MAX_TARGET))
+ target = bitcoin_data.FloatingIntegerType().truncate_to(pre_target3)
attempts_to_block = bitcoin_data.target_to_average_attempts(block_target)
- total_weight = 0
-
- class fake_share(object):
- script = new_script
- share = dict(target=target2)
+ max_weight = net.SPREAD * attempts_to_block
- dest_weights = {}
- for share in itertools.chain([fake_share], itertools.islice(tracker.get_chain(previous_share_hash), net.CHAIN_LENGTH)):
- weight = bitcoin_data.target_to_average_attempts(share.share['target'])
- weight = max(weight, attempts_to_block - total_weight)
-
- dest_weights[share.script] = dest_weights.get(share.script, 0) + weight
- total_weight += weight
-
- if total_weight == attempts_to_block:
- break
+ this_weight = min(bitcoin_data.target_to_average_attempts(target), max_weight)
+ other_weights, other_weights_total = tracker.get_cumulative_weights(previous_share_hash, min(height, net.CHAIN_LENGTH), max(0, max_weight - this_weight))
+ dest_weights, total_weight = math.add_dicts([{new_script: this_weight}, other_weights]), this_weight + other_weights_total
+ assert total_weight == sum(dest_weights.itervalues())
- amounts = dict((script, subsidy*(199*weight)//(200*total_weight)) for (script, weight) in dest_weights.iteritems())
- amounts[net.SCRIPT] = amounts.get(net.SCRIPT, 0) + subsidy*1//200 # prevent fake previous p2pool blocks
+ amounts = dict((script, subsidy*(396*weight)//(400*total_weight)) for (script, weight) in dest_weights.iteritems())
+ amounts[new_script] = amounts.get(new_script, 0) + subsidy*2//400
+ amounts[net.SCRIPT] = amounts.get(net.SCRIPT, 0) + subsidy*2//400
amounts[net.SCRIPT] = amounts.get(net.SCRIPT, 0) + subsidy - sum(amounts.itervalues()) # collect any extra
+ if sum(amounts.itervalues()) != subsidy:
+ raise ValueError()
+ if any(x < 0 for x in amounts.itervalues()):
+ raise ValueError()
- dests = sorted(amounts.iterkeys(), key=lambda script: (script == new_script, script))
- assert dests[-1] == new_script, dests
+ pre_dests = sorted(amounts.iterkeys(), key=lambda script: (amounts[script], script))
+ pre_dests = pre_dests[-4000:] # block length limit, unlikely to ever be hit
- previous_shares = [] # XXX
+ dests = sorted(pre_dests, key=lambda script: (script == new_script, script))
+ assert dests[-1] == new_script
return dict(
version=1,
identifier=net.IDENTIFIER,
share_data=dict(
previous_share_hash=previous_share_hash,
- previous_shares_hash=shares_type.hash256(previous_shares),
nonce=nonce,
- target2=target2,
+ target=target,
),
)),
)],
)
-class Tracker(object):
- def __init__(self):
- self.shares = {} # hash -> share
- self.reverse_shares = {} # previous_share_hash -> share_hash
- self.heads = {} # hash -> (height, tail hash)
- self.heads = set()
-
- def add_share(self, share):
- if share.hash in self.shares:
- return # XXX raise exception?
-
- self.shares[share.hash] = share
- self.reverse_shares.setdefault(share.previous_share_hash, set()).add(share.hash)
+
+class OkayTracker(bitcoin_data.Tracker):
+ def __init__(self, net):
+ bitcoin_data.Tracker.__init__(self)
+ self.net = net
+ self.verified = bitcoin_data.Tracker()
- if self.reverse_shares.get(share.hash, set()):
- pass # not a head
- else:
- self.heads.add(share.hash)
- if share.previous_share_hash in self.heads:
- self.heads.remove(share.previous_share_hash)
+ self.get_cumulative_weights = skiplists.WeightsSkipList(self)
- def get_chain(self, start):
- share_hash_to_get = start
- while share_hash_to_get in self.shares:
- share = self.shares[share_hash_to_get]
- yield share
- share_hash_to_get = share.previous_share_hash
+ def add(self, share, known_verified=False):
+ bitcoin_data.Tracker.add(self, share)
+ if known_verified:
+ self.verified.add(share)
- def get_best_share_hash(self):
- if not self.heads:
- return None
- return max(self.heads, key=self.score_chain)
+ def attempt_verify(self, share, now):
+ if share.hash in self.verified.shares:
+ return True
+ height, last = self.get_height_and_last(share.hash)
+ if height < self.net.CHAIN_LENGTH and last is not None:
+ raise AssertionError()
+ try:
+ share.check(self, now, self.net)
+ except:
+ log.err(None, 'Share check failed:')
+ return False
+ else:
+ self.verified.add(share)
+ return True
- def score_chain(self, start):
- length = len(self.get_chain(start))
+ def think(self, ht, previous_block, now):
+ desired = set()
- score = 0
- for share in itertools.islice(self.get_chain(start), self.net.CHAIN_LENGTH):
- score += a
+ # O(len(self.heads))
+ # make 'unverified heads' set?
+ # for each overall head, attempt verification
+ # if it fails, attempt on parent, and repeat
+ # if no successful verification because of lack of parents, request parent
+ bads = set()
+ for head in set(self.heads) - set(self.verified.heads):
+ head_height, last = self.get_height_and_last(head)
+
+ for share in itertools.islice(self.get_chain_known(head), None if last is None else min(5, max(0, head_height - self.net.CHAIN_LENGTH))):
+ if self.attempt_verify(share, now):
+ break
+ if share.hash in self.heads:
+ bads.add(share.hash)
+ else:
+ if last is not None:
+ desired.add((self.shares[random.choice(list(self.reverse_shares[last]))].peer, last))
+ for bad in bads:
+ assert bad not in self.verified.shares
+ assert bad in self.heads
+ self.remove(bad)
- return (min(length, 1000), score)
-
-class OkayTracker(Tracker):
- def __init__(self):
- Tracker.__init__(self)
- self.okay_cache = set()
- def is_okay(self, start):
- '''
- Returns:
- {'result': 'okay', verified_height: ...} # if share has an okay parent or if share has CHAIN_LENGTH children and CHAIN_LENTH parents that it verified with
- {'result': 'needs_parent', 'parent_hash': ...} # if share doesn't have CHAIN_LENGTH parents
- {'result': 'needs_share_shares', 'share_hash': ...} # if share has CHAIN_LENGTH children and needs its shares to
- {'result': 'not_okay'} # if the share has a not okay parent or if the share has an okay parent and failed validation
- '''
+ # try to get at least CHAIN_LENGTH height for each verified head, requesting parents if needed
+ for head in list(self.verified.heads):
+ head_height, last_hash = self.verified.get_height_and_last(head)
+ last_height, last_last_hash = self.get_height_and_last(last_hash)
+ # XXX review boundary conditions
+ want = max(self.net.CHAIN_LENGTH - head_height, 0)
+ can = max(last_height - 1 - self.net.CHAIN_LENGTH, 0) if last_last_hash is not None else last_height
+ get = min(want, can)
+ #print 'Z', head_height, last_hash is None, last_height, last_last_hash is None, want, can, get
+ for share in itertools.islice(self.get_chain_known(last_hash), get):
+ if not self.attempt_verify(share, now):
+ break
+ if head_height < self.net.CHAIN_LENGTH and last_last_hash is not None:
+ desired.add((self.verified.shares[random.choice(list(self.verified.reverse_shares[last_hash]))].peer, last_last_hash))
- length = len
- to_end_rev = []
- for share in itertools.islice(self.get_chain(start), self.net.CHAIN_LENGTH):
- if share in self.okay_cache:
- return validate(share, to_end_rev[::-1])
- to_end_rev.append(share)
- # picking up last share from for loop, ew
- self.okay_cache.add(share)
- return validate(share, to_end_rev[::-1])
-class Chain(object):
- def __init__(self):
- pass
-
-def get_chain_descriptor(tracker, start):
- for item in tracker.get_chain(self.net.CHAIN_LENGTH):
- a
- pass
-
-if __name__ == '__main__':
- class FakeShare(object):
- def __init__(self, hash, previous_share_hash):
- self.hash = hash
- self.previous_share_hash = previous_share_hash
-
- t = Tracker()
+ # decide best tree
+ best_tail = max(self.verified.tails, key=lambda h: self.score(max(self.verified.tails[h], key=self.verified.get_height), ht)) if self.verified.tails else None
+ # decide best verified head
+ scores = sorted(self.verified.tails.get(best_tail, []), key=lambda h: (
+ self.verified.get_work(self.verified.get_nth_parent_hash(h, min(5, self.verified.get_height(h)))),
+ ht.get_min_height(self.verified.shares[h].previous_block),
+ self.verified.shares[h].peer is None,
+ -self.verified.shares[h].time_seen
+ ))
+
+
+ if p2pool.DEBUG:
+ print len(self.verified.tails.get(best_tail, []))
+ for h in scores:
+ print ' ', format_hash(h), format_hash(self.verified.shares[h].previous_hash), (
+ self.verified.get_work(self.verified.get_nth_parent_hash(h, min(5, self.verified.get_height(h)))),
+ ht.get_min_height(self.verified.shares[h].previous_block),
+ self.verified.shares[h].peer is None,
+ -self.verified.shares[h].time_seen
+ )
+
+ # eat away at heads
+ if scores:
+ while True:
+ to_remove = set()
+ for share_hash, tail in self.heads.iteritems():
+ if share_hash in scores[-5:]:
+ continue
+ if self.shares[share_hash].time_seen > time.time() - 30:
+ continue
+ if max(self.shares[before_tail_hash].time_seen for before_tail_hash in self.reverse_shares.get(tail)) > time.time() - 120:
+ continue
+ to_remove.add(share_hash)
+ for share_hash in to_remove:
+ self.remove(share_hash)
+ if share_hash in self.verified.shares:
+ self.verified.remove(share_hash)
+ if not to_remove:
+ break
+
+ # drop tails
+ while True:
+ removed = False
+ # if removed from this, it must be removed from verified
+ for tail, heads in list(self.tails.iteritems()):
+ if min(self.get_height(head) for head in heads) < 2*self.net.CHAIN_LENGTH + 10:
+ continue
+ start = time.time()
+ for aftertail in list(self.reverse_shares.get(tail, set())):
+ self.remove(aftertail)
+ if aftertail in self.verified.shares:
+ self.verified.remove(aftertail)
+ removed = True
+ end = time.time()
+ print "removed! %x %f" % (tail, end - start)
+ if not removed:
+ break
+
+ best = scores[-1] if scores else None
+
+ if best is not None:
+ best_share = self.verified.shares[best]
+ if ht.get_min_height(best_share.header['previous_block']) < ht.get_min_height(previous_block) and best_share.bitcoin_hash != previous_block and best_share.peer is not None:
+ if p2pool.DEBUG:
+ print 'Stale detected!'
+ best = best_share.previous_hash
+
+ return best, desired
- t.add_share(FakeShare(1, 2))
- print t.heads
- t.add_share(FakeShare(4, 0))
- print t.heads
- t.add_share(FakeShare(3, 4))
- print t.heads
+ @memoize.memoize_with_backing(expiring_dict.ExpiringDict(5, get_touches=False))
+ def score(self, share_hash, ht):
+ head_height, last = self.verified.get_height_and_last(share_hash)
+ score2 = 0
+ attempts = 0
+ max_height = 0
+ share2_hash = self.verified.get_nth_parent_hash(share_hash, min(self.net.CHAIN_LENGTH//2, head_height//2)) if last is not None else share_hash
+ for share in reversed(list(itertools.islice(self.verified.get_chain_known(share2_hash), self.net.CHAIN_LENGTH))):
+ max_height = max(max_height, ht.get_min_height(share.header['previous_block']))
+ attempts += bitcoin_data.target_to_average_attempts(share.target)
+ this_score = attempts//(ht.get_highest_height() - max_height + 1)
+ if this_score > score2:
+ score2 = this_score
+ return min(head_height, self.net.CHAIN_LENGTH), score2
+
+def format_hash(x):
+ if x is None:
+ return 'xxxxxxxx'
+ return '%08x' % (x % 2**32)
class Mainnet(bitcoin_data.Mainnet):
SHARE_PERIOD = 5 # seconds
- CHAIN_LENGTH = 1000 # shares
- SPREAD = 10 # blocks
- ROOT_BLOCK = 0x6c9cb0589a44808d9a9361266a4ffb9fea2e2cf4d70bb2118b5
+ CHAIN_LENGTH = 24*60*60//5 # shares
+ TARGET_LOOKBEHIND = 200 # shares
+ SPREAD = 3 # blocks
SCRIPT = '4104ffd03de44a6e11b9917f3a29f9443283d9871c9d743ef30d5eddcd37094b64d1b3d8090496b53256786bf5c82932ec23c3b74d9f05a6f95a8b5529352656664bac'.decode('hex')
- IDENTIFIER = 0x7452839666e1f8f8
- PREFIX = '2d4224bf18c87b87'.decode('hex')
+ IDENTIFIER = 'fc70035c7a81bc6f'.decode('hex')
+ PREFIX = '2472ef181efcd37b'.decode('hex')
ADDRS_TABLE = 'addrs'
P2P_PORT = 9333
+ MAX_TARGET = 2**256//2**32 - 1
+ PERSIST = True
+ HEADERSTORE_FILENAME = 'headers.dat'
class Testnet(bitcoin_data.Testnet):
- SHARE_PERIOD = 5 # seconds
- CHAIN_LENGTH = 1000 # shares
- SPREAD = 10 # blocks
- ROOT_BLOCK = 0xd5070cd4f2987ad2191af71393731a2b143f094f7b84c9e6aa9a6a
+ SHARE_PERIOD = 1 # seconds
+ CHAIN_LENGTH = 24*60*60//5 # shares
+ TARGET_LOOKBEHIND = 200 # shares
+ SPREAD = 3 # blocks
SCRIPT = '410403ad3dee8ab3d8a9ce5dd2abfbe7364ccd9413df1d279bf1a207849310465b0956e5904b1155ecd17574778f9949589ebfd4fb33ce837c241474a225cf08d85dac'.decode('hex')
- IDENTIFIER = 0x1ae3479e4eb6700a
- PREFIX = 'd19778c812754854'.decode('hex')
+ IDENTIFIER = '5fc2be2d4f0d6bfb'.decode('hex')
+ PREFIX = '3f6057a15036f441'.decode('hex')
ADDRS_TABLE = 'addrs_testnet'
P2P_PORT = 19333
+ MAX_TARGET = 2**256//2**20 - 1
+ PERSIST = False
+ HEADERSTORE_FILENAME = 'testnet_headers.dat'
git://git.novaco.in / p2pool.git / blobdiff