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bitcoin/src
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glozow 9dd7efc8c3 [policy] lower default minrelaytxfee and incrementalrelayfee to 100sat/kvB 
Let's say an attacker wants to use/exhaust the network's bandwidth, and
has the choice between renting resources from a commercial provider and
getting the network to "spam" itself it by sending unconfirmed
transactions. We'd like the latter to be more expensive than the former.

The bandwidth for relaying a transaction across the network is roughly
its serialized size (plus relay overhead) x number of nodes. A 1000vB
transaction is 1000-4000B serialized. With 100k nodes, that's 0.1-0.4GB
If the going rate for commercial services is 10c/GB, that's like 1-4c per kvB
of transaction data, so a 1000vB transaction should pay at least $0.04.

At a price of 120k USD/BTC, 100sat is about $0.12. This price allows us
to tolerate a large decrease in the conversion rate or increase in the
number of nodes.

Github-Pull: #33106
Rebased-From: 6da5de58cabc4133c379baa50845e30e5bc6b3e4
2025-08-20 10:19:23 -04:00
..
bench
validation: use wtxid instead of txid in CheckEphemeralSpends
2025-03-11 16:00:46 +00:00
common
pcp: make NAT-PMP error codes uint16_t
2025-02-12 10:31:43 -05:00
compat
netbase: refactor CreateSock() to accept sa_family_t
2024-03-01 13:13:07 -05:00
consensus
Check leaves size maximum in MerkleComputation
2024-12-17 10:12:31 +07:00
crc32c
Update crc32c subtree to latest upstream master
2024-02-27 18:28:19 +00:00
crypto
cmake: Add missed SSE41_CXXFLAGS
2025-05-22 14:55:42 +01:00
index
scripted-diff: rename block and undo functions for consistency
2025-01-09 15:17:02 +01:00
init
config: add DEBUG_ONLY -logratelimit
2025-08-20 12:01:35 +01:00
interfaces
Merge bitcoin/bitcoin#31157: Cleanups to port mapping module post UPnP drop
2025-02-14 11:15:53 +01:00
ipc
Merge bitcoin/bitcoin#31384: mining: bugfix: Fix duplicate coinbase tx weight reservation
2025-02-10 08:26:01 -05:00
kernel
chainparams: remove hardcoded signet seeds
2025-03-06 15:39:58 -06:00
leveldb
Update leveldb subtree to latest upstream
2025-01-16 11:09:56 +00:00
logging
scripted-diff: LogPrint -> LogDebug
2024-08-29 13:49:57 +02:00
minisketch
Update minisketch subtree to latest master
2025-03-05 15:36:56 +00:00
node
[doc] assert that default min relay feerate and incremental are the same
2025-08-20 10:19:23 -04:00
policy
[policy] lower default minrelaytxfee and incrementalrelayfee to 100sat/kvB
2025-08-20 10:19:23 -04:00
primitives
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00
qt
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-19 10:39:27 +01:00
rpc
test: Fix 'getdescriptoractivity' RPCHelpMan, add test to verify 'spend_vin' is the correct field
2025-08-06 11:17:38 +01:00
script
miniscript: Make NodeRef a unique_ptr
2025-01-21 13:17:20 -05:00
secp256k1
Update secp256k1 subtree to v0.6.0
2024-11-04 14:59:46 -05:00
support
util: Add missing types in make_secure_unique
2024-12-10 21:51:48 +01:00
test
[policy] lower default minrelaytxfee and incrementalrelayfee to 100sat/kvB
2025-08-20 10:19:23 -04:00
univalue
cmake: Revamp handling of data files
2025-02-21 11:11:29 +00:00
util
cmake: Avoid using OBJECT libraries
2025-02-18 12:29:18 +00:00
wallet
wallet: fix crash on double block disconnection
2025-06-19 10:39:27 +01:00
zmq
refactor: Remove spurious virtual from final ~CZMQNotificationInterface
2025-05-06 18:04:27 +01:00
.clang-format
refactor: Print verbose serialize compiler error messages
2023-12-15 15:20:54 +01:00
.clang-tidy
tidy: add clang-tidy modernize-use-starts-ends-with check
2024-09-14 20:33:32 +03:00
addrdb.cpp
scripted-diff: Rename PACKAGE_* variables to CLIENT_*
2024-10-28 12:36:19 +00:00
addrdb.h
…
addresstype.cpp
policy: Add OP_1 <0x4e73> as a standard output type
2024-07-30 14:06:58 -04:00
addresstype.h
policy: Add OP_1 <0x4e73> as a standard output type
2024-07-30 14:06:58 -04:00
addrman_impl.h
Merge bitcoin/bitcoin#30568: addrman: change internal id counting to int64_t
2024-09-20 12:55:22 -04:00
addrman.cpp
addrman: cap the max_pct to not exceed the maximum number of addresses
2024-11-11 12:47:53 -03:00
addrman.h
addrman: cap the max_pct to not exceed the maximum number of addresses
2024-11-11 12:47:53 -03:00
arith_uint256.cpp
Add a fuzz test for Num3072 multiplication and inversion
2025-01-09 10:11:46 -05:00
arith_uint256.h
doc: Clarify comments about endianness after #30526
2025-01-03 09:19:53 -05:00
attributes.h
…
banman.cpp
refactor: Delay translation of _() literals
2025-01-14 19:21:37 +01:00
banman.h
net_processing: remove Misbehavior score and increments
2024-05-30 08:35:18 -04:00
base58.cpp
refactor: Avoid needless, unsafe c-style cast
2024-12-19 13:46:31 +01:00
base58.h
…
bech32.cpp
Split out bech32 separator char to header
2024-10-19 18:49:53 +02:00
bech32.h
Split out bech32 separator char to header
2024-10-19 18:49:53 +02:00
bip324.cpp
…
bip324.h
…
bitcoin-chainstate.cpp
kernel: Move block tree db open to block manager
2025-01-20 21:19:39 +01:00
bitcoin-cli-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-19 10:39:27 +01:00
bitcoin-cli.cpp
Fix nonsensical bitcoin-cli -norpcwallet behavior
2025-02-13 12:30:15 -05:00
bitcoin-tx-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-19 10:39:27 +01:00
bitcoin-tx.cpp
refactor: Use TranslateFn type consistently
2025-01-15 12:15:40 +01:00
bitcoin-util-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-19 10:39:27 +01:00
bitcoin-util.cpp
refactor: Use TranslateFn type consistently
2025-01-15 12:15:40 +01:00
bitcoin-wallet-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-19 10:39:27 +01:00
bitcoin-wallet.cpp
refactor: Use TranslateFn type consistently
2025-01-15 12:15:40 +01:00
bitcoind-res.rc
doc, windows: CompanyName "Bitcoin" => "Bitcoin Core project"
2025-06-19 10:39:27 +01:00
bitcoind.cpp
refactor: introduce a more general LockDirectories for init
2025-01-16 21:06:21 +00:00
blockencodings.cpp
scripted-diff: LogPrint -> LogDebug
2024-08-29 13:49:57 +02:00
blockencodings.h
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00
blockfilter.cpp
util: Move util/string.h functions to util namespace
2024-05-16 10:16:08 -05:00
blockfilter.h
…
chain.cpp
…
chain.h
doc: update NeedsRedownload() comment
2024-09-17 09:54:18 +02:00
chainparams.cpp
refactor: Avoid using IsArgSet() on -signetseednode and -signetchallenge list options
2025-02-13 12:30:15 -05:00
chainparams.h
…
chainparamsbase.cpp
net, init: derive default onion port if a user specified a -port
2024-11-14 13:41:02 -05:00
chainparamsbase.h
net, init: derive default onion port if a user specified a -port
2024-11-14 13:41:02 -05:00
chainparamsseeds.h
seeds: update fixed dns seeds
2025-03-06 15:39:58 -06:00
checkqueue.h
Merge bitcoin/bitcoin#31313: refactor: Clamp worker threads in ChainstateManager constructor
2024-12-03 18:02:37 -05:00
clientversion.cpp
refactor: Delay translation of _() literals
2025-01-14 19:21:37 +01:00
clientversion.h
scripted-diff: Clarify "user agent" variable name
2024-10-28 12:35:49 +00:00
cluster_linearize.h
doc: correct typos
2024-11-11 14:14:39 +00:00
CMakeLists.txt
cmake: Set top-level target output locations
2025-02-20 22:18:51 +00:00
coins.cpp
Merge bitcoin/bitcoin#30906: refactor: prohibit direct flags access in CCoinsCacheEntry and remove invalid tests
2024-12-04 14:09:05 -05:00
coins.h
coins, refactor: Remove direct GetFlags access
2024-12-02 13:52:34 +01:00
compressor.cpp
…
compressor.h
refactor: Rename CTransaction::nVersion to version
2024-06-07 13:55:23 -04:00
core_io.h
rpc: add getdescriptoractivity
2024-11-26 20:47:08 -05:00
core_memusage.h
…
core_read.cpp
ci: Update Clang in "tidy" job
2024-12-05 14:37:47 +00:00
core_write.cpp
refactor: Rename CTransaction::nVersion to version
2024-06-07 13:55:23 -04:00
cuckoocache.h
validation: Don't error if maxsigcachesize exceeds uint32::max
2024-07-04 22:35:29 +02:00
dbwrapper.cpp
dbwrapper: Bump max file size to 32 MiB
2024-11-30 20:19:08 +01:00
dbwrapper.h
dbwrapper: Bump max file size to 32 MiB
2024-11-30 20:19:08 +01:00
deploymentinfo.cpp
…
deploymentinfo.h
…
deploymentstatus.cpp
…
deploymentstatus.h
…
dummywallet.cpp
wallet, test: Be able to always swap BDB endianness
2024-05-16 15:03:13 -04:00
external_signer.cpp
refactor: Remove Span operator==, Use std::ranges::equal
2024-08-13 07:44:31 +02:00
external_signer.h
…
flatfile.cpp
scripted-diff: LogPrint -> LogDebug
2024-08-29 13:49:57 +02:00
flatfile.h
refactor: Add FlatFileSeq member variables in BlockManager
2024-07-24 09:39:35 +02:00
hash.cpp
crypto, hash: replace custom rotl32 with std::rotl
2024-01-05 17:12:38 +01:00
hash.h
Squashed 'src/secp256k1/' changes from 2f2ccc46954..0cdc758a563
2024-11-04 14:59:46 -05:00
headerssync.cpp
[headerssync] update headerssync config for v29
2025-03-04 14:23:18 -05:00
headerssync.h
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00
httprpc.cpp
Fix nonsensical -norpcwhitelist behavior
2025-02-13 12:30:15 -05:00
httprpc.h
…
httpserver.cpp
Fix nonsensical -norpcbind and -norpcallowip behavior
2025-02-13 12:30:15 -05:00
httpserver.h
rpc: increase the defaults for -rpcthreads and -rpcworkqueue
2024-11-04 17:08:21 +01:00
i2p.cpp
Merge bitcoin/bitcoin#29833: i2p: fix and improve logs
2024-06-26 15:28:26 -04:00
i2p.h
i2p: log errors properly according to their severity
2024-06-12 16:19:50 -03:00
indirectmap.h
…
init.cpp
config: add DEBUG_ONLY -logratelimit
2025-08-20 12:01:35 +01:00
init.h
refactor: introduce a more general LockDirectories for init
2025-01-16 21:06:21 +00:00
key_io.cpp
key: clear out secret data in DecodeExtKey
2024-10-27 15:38:54 +01:00
key_io.h
…
key.cpp
refactor: remove un-tested early returns
2024-08-04 08:52:22 +02:00
key.h
refactor: move SignSchnorr to KeyPair
2024-08-04 08:51:36 +02:00
logging.cpp
log: make m_limiter a shared_ptr
2025-08-20 11:59:45 +01:00
logging.h
config: add DEBUG_ONLY -logratelimit
2025-08-20 12:01:35 +01:00
mapport.cpp
mapport: make ProcessPCP void
2024-11-04 14:19:40 -05:00
mapport.h
mapport: rename 'use_pcp' to 'enable'
2024-10-29 11:58:51 -04:00
memusage.h
memusage: Add DynamicUsage for std::string
2024-11-04 18:46:40 +01:00
merkleblock.cpp
[clang-tidy] Enable the misc-no-recursion check
2024-04-07 14:04:45 +01:00
merkleblock.h
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00
net_permissions.cpp
util: move fees.h and error.h to common/messages.h
2024-05-16 10:16:08 -05:00
net_permissions.h
Accept "in" and "out" flags to -whitelist to allow whitelisting manual connections
2024-02-28 10:05:56 -03:00
net_processing.cpp
tracing: add misbehaving conn tracepoint
2025-02-04 10:25:22 +01:00
net_processing.h
net: add GetOrphanTransactions() to PeerManager
2024-10-01 21:55:18 -04:00
net_types.cpp
rpc: avoid copying into UniValue
2024-05-20 16:48:19 +00:00
net_types.h
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00
net.cpp
Merge bitcoin/bitcoin#30529: Fix -norpcwhitelist, -norpcallowip, and similar corner case behavior
2025-02-14 15:10:09 -08:00
net.h
net: reduce CAddress usage to CService or CNetAddr
2025-02-13 12:38:55 +01:00
netaddress.cpp
net: Add optional length checking to CService::SetSockAddr
2025-01-13 21:53:56 +01:00
netaddress.h
net: Add optional length checking to CService::SetSockAddr
2025-01-13 21:53:56 +01:00
netbase.cpp
add more bad p2p ports
2025-07-04 16:35:35 +01:00
netbase.h
net: add All() in ReachableNets
2024-09-10 11:20:40 -03:00
netgroup.cpp
…
netgroup.h
…
netmessagemaker.h
…
noui.cpp
node: Use log levels in noui_ThreadSafeMessageBox
2024-03-21 16:41:16 +01:00
noui.h
…
outputtype.cpp
fix incorrect multisig redeem script size limit for segwit
2024-05-03 14:20:44 -03:00
outputtype.h
fix incorrect multisig redeem script size limit for segwit
2024-05-03 14:20:44 -03:00
pow.cpp
consensus: add DeriveTarget() to pow.h
2025-01-22 11:29:05 +01:00
pow.h
consensus: add DeriveTarget() to pow.h
2025-01-22 11:29:05 +01:00
prevector.h
prevector: avoid GCC bogus warnings in insert method
2024-09-11 17:41:26 +02:00
protocol.cpp
scripted-diff: get rid of remaining "command" terminology in protocol.{h,cpp}
2024-10-26 23:44:15 +02:00
protocol.h
scripted-diff: get rid of remaining "command" terminology in protocol.{h,cpp}
2024-10-26 23:44:15 +02:00
psbt.cpp
util: add TransactionError includes and namespace declarations
2024-05-16 10:16:08 -05:00
psbt.h
Merge bitcoin/bitcoin#30406: refactor: modernize-use-equals-default
2024-07-11 19:08:46 +01:00
pubkey.cpp
refactor: Use immediate lambda to work around GCC bug 117966
2024-12-16 10:39:28 +01:00
pubkey.h
refactor: Make XOnlyPubKey tolerate constexpr std::arrays
2024-08-28 19:09:51 +02:00
random.cpp
Remove support for RNDR/RNDRRS for aarch64 on Linux
2025-05-06 18:04:27 +01:00
random.h
refactor: Drop unused UCharCast
2025-01-14 19:01:53 +01:00
randomenv.cpp
util: Remove RandAddSeedPerfmon
2024-10-21 23:24:17 +02:00
randomenv.h
…
rest.cpp
Merge bitcoin/bitcoin#31583: rpc: add target to getmininginfo field and show next block info
2025-01-22 15:01:23 -05:00
rest.h
…
scheduler.cpp
scripted-diff: Rename SingleThreadedSchedulerClient to SerialTaskRunner
2024-02-15 14:43:14 +01:00
scheduler.h
kernel: Remove dependency on CScheduler
2024-02-16 17:12:52 +01:00
serialize.h
Allow std::span in stream serialization
2024-12-19 14:41:21 +01:00
signet.cpp
scripted-diff: LogPrint -> LogDebug
2024-08-29 13:49:57 +02:00
signet.h
…
span.h
refactor: Simplify SpanPopBack
2024-12-19 13:46:52 +01:00
streams.cpp
streams: add DataStream::GetMemoryUsage
2024-11-04 18:46:40 +01:00
streams.h
refactor: Avoid passing span iterators when data pointers are expected
2024-12-19 14:39:55 +01:00
sync.cpp
util: avoid using thread_local variable that has a destructor
2024-05-16 18:16:46 +02:00
sync.h
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00
threadsafety.h
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00
tinyformat.h
refactor: Introduce struct to hold a runtime format string
2025-01-15 12:16:08 +01:00
torcontrol.cpp
Normalize inconsistent -noonlynet behavior
2025-02-13 12:30:15 -05:00
torcontrol.h
net, init: derive default onion port if a user specified a -port
2024-11-14 13:41:02 -05:00
txdb.cpp
refactor: Rely on returned value of GetCoin instead of parameter
2024-09-18 20:03:47 +02:00
txdb.h
kernel: Move default cache constants to caches
2025-01-15 15:44:55 +01:00
txmempool.cpp
txmempool: fix typos in comments
2024-12-31 00:04:20 -03:00
txmempool.h
txmempool: fix typos in comments
2024-12-31 00:04:20 -03:00
txorphanage.cpp
[fuzz] TxOrphanage::SanityCheck accounting
2025-02-07 13:55:57 -05:00
txorphanage.h
[fuzz] TxOrphanage::SanityCheck accounting
2025-02-07 13:55:57 -05:00
txrequest.cpp
[refactor] make GetCandidatePeers take uint256 and in-out vector
2025-01-29 18:05:16 -05:00
txrequest.h
[refactor] make GetCandidatePeers take uint256 and in-out vector
2025-01-29 18:05:16 -05:00
uint256.cpp
scripted-diff: Rename SetHex to SetHexDeprecated
2024-07-24 09:15:34 +02:00
uint256.h
doc: Clarify comments about endianness after #30526
2025-01-03 09:19:53 -05:00
undo.h
…
validation.cpp
log: Add rate limiting to LogPrintf, LogInfo, LogWarning, LogError, LogPrintLevel
2025-08-20 11:45:06 +01:00
validation.h
refactor: Replace uint256 type with Wtxid in PackageMempoolAcceptResult struct
2025-03-11 16:00:54 +00:00
validationinterface.cpp
refactor: include the proper header rather than forward-declaring RemovalReasonToString
2024-10-08 15:25:47 +00:00
validationinterface.h
[refactor] change ActiveTipChange to use CBlockIndex ref instead of ptr
2024-07-25 11:01:22 +01:00
versionbits.cpp
…
versionbits.h
…
walletinitinterface.h
tidy: modernize-use-equals-default
2024-07-08 11:12:01 +02:00