Here is a list of cool things you can see, do and find out on a bitcoin node. Specifically for full nodes running in CLI or daemon mode – not GUI client.
Get Block Count
Get the total number of blocks in your version of the blockchain – the one on your local node. If it is up to date then this will be the number of blocks in total verified on the bitcoin blockchain.
bitcoin-cli getblockcount
685608Get the total amount of bitcoin that has been mined
To check the total amount of bitcoin that has been mined execute:
ubuntu@btc:~$ bitcoin-cli gettxoutsetinfo
{
"height": 713513,
"bestblock": "00000000000000000000e786c548255af5b4509c16d909b03c65568dc4ab998a",
"transactions": 46621408,
"txouts": 77012436,
"bogosize": 5761235215,
"hash_serialized_2": "4edfcd9e471794a587ac32dd26d2285829b89d0999ab4740391593bc7358a63c",
"disk_size": 4705170290,
"total_amount": 18896756.29158394
}The "total_amount": 18896756.29158394 is the total from the max of 21000000
Get the time (in UTC not blockheight) a block was mined
Get the hash, get the block verbosely and convert the unix epoch time into human readable. Use the mediantime.
Mediantime is the median time of the past 11 block timestamps
bitcoin-cli getblockhash 100000
bitcoin-cli getblock 000000000003ba27aa200b1cecaad478d2b00432346c3f1f3986da1afd33e506 2
date -d @1293622620
Wed 29 Dec 2010 11:37:00 AM UTCSome dates:
- block 100,000: Wed 29 Dec 2010 11:37:00 AM UTC
- block 200,000: Sat 22 Sep 2012 09:57:08 AM UTC
- block 300,000: Sat 10 May 2014 05:54:38 AM UTC
- block 400,000: Thu 25 Feb 2016 03:52:57 PM UTC
- block 500,000: Mon 18 Dec 2017 06:14:46 PM UTC
- block 600,000: Fri 18 Oct 2019 11:09:37 PM UTC
- block 700,000: Sat 11 Sep 2021 04:14:32 AM UTC
- block 800,000: Mon 24 Jul 2023 03:17:09 AM UTC
The number of blocks per gregorean year:
365 days * 24 hours * 6 blocks an hour
52560Get the Genesis Block
Get the block hash at height 0:
ubuntu@btc:~$ bitcoin-cli getblockhash 0
000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26fVerbosely get the block by the hash:
ubuntu@btc:~$ bitcoin-cli getblock 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f 2
{
"hash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
"confirmations": 695440,
"strippedsize": 285,
"size": 285,
"weight": 1140,
"height": 0,
"version": 1,
"versionHex": "00000001",
"merkleroot": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
"tx": [
{
"txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
"hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
"version": 1,
"size": 204,
"vsize": 204,
"weight": 816,
"locktime": 0,
"vin": [
{
"coinbase": "04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73",
"sequence": 4294967295
}
],
"vout": [
{
"value": 50.00000000,
"n": 0,
"scriptPubKey": {
"asm": "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f OP_CHECKSIG",
"hex": "4104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac",
"type": "pubkey"
}
}
],
"hex": "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000"
}
],
"time": 1231006505,
"mediantime": 1231006505,
"nonce": 2083236893,
"bits": "1d00ffff",
"difficulty": 1,
"chainwork": "0000000000000000000000000000000000000000000000000000000100010001",
"nTx": 1,
"nextblockhash": "00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048"
}Decode the hex field – with the iconic Chancellor on brink evidence
ubuntu@btc:~$ echo “01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000” | xxd -r -p
????M??EThe Times 03/Jan/2009 Chancellor on brink of second bailout for banks?????*CAg????UH'g?q0?\֨(?9 ?yb??aI???L?8??U???\8M??
?W?Lp+k?_?You can also get this by going to your blocks folder in your bitcoin folder and running:
ubuntu@btc:/mnt/btc/bitcoin/blocks$ hexdump -C -s 8 -n 285 blk00000.dat
00000008 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000018 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000028 00 00 00 00 3b a3 ed fd 7a 7b 12 b2 7a c7 2c 3e |....;...z{..z.,>|
00000038 67 76 8f 61 7f c8 1b c3 88 8a 51 32 3a 9f b8 aa |gv.a......Q2:...|
00000048 4b 1e 5e 4a 29 ab 5f 49 ff ff 00 1d 1d ac 2b 7c |K.^J)._I......+||
00000058 01 01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 |................|
00000068 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000078 00 00 00 00 00 00 ff ff ff ff 4d 04 ff ff 00 1d |..........M.....|
00000088 01 04 45 54 68 65 20 54 69 6d 65 73 20 30 33 2f |..EThe Times 03/|
00000098 4a 61 6e 2f 32 30 30 39 20 43 68 61 6e 63 65 6c |Jan/2009 Chancel|
000000a8 6c 6f 72 20 6f 6e 20 62 72 69 6e 6b 20 6f 66 20 |lor on brink of |
000000b8 73 65 63 6f 6e 64 20 62 61 69 6c 6f 75 74 20 66 |second bailout f|
000000c8 6f 72 20 62 61 6e 6b 73 ff ff ff ff 01 00 f2 05 |or banks........|
000000d8 2a 01 00 00 00 43 41 04 67 8a fd b0 fe 55 48 27 |*....CA.g....UH'|
000000e8 19 67 f1 a6 71 30 b7 10 5c d6 a8 28 e0 39 09 a6 |.g..q0..\..(.9..|
000000f8 79 62 e0 ea 1f 61 de b6 49 f6 bc 3f 4c ef 38 c4 |yb...a..I..?L.8.|
00000108 f3 55 04 e5 1e c1 12 de 5c 38 4d f7 ba 0b 8d 57 |.U......\8M....W|
00000118 8a 4c 70 2b 6b f1 1d 5f ac 00 00 00 00 |.Lp+k.._.....|Source: Plan B tweet
Get Info
There are a few ways to get information
bitcoin-cli help | grep info
getblockchaininfo
getmempoolinfo
gettxoutsetinfo ( "hash_type" )
getmemoryinfo ( "mode" )
getrpcinfo
getmininginfo
getaddednodeinfo ( "node" )
getnetworkinfo
getpeerinfo
getdescriptorinfo "descriptor"
getindexinfo ( "index_name" )
getaddressinfo "address"
getwalletinfoGet the Pizza Day Traction by Laszlo
bitcoin-cli getrawtransaction a1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d 2Get Block Stats
bitcoin-cli getblockstats <hash_or_height>
Example:
bitcoin-cli getblockstats 821595
{
"avgfee": 149184,
"avgfeerate": 637,
"avgtxsize": 390,
"blockhash": "0000000000000000000428204fbb6c41d5b1ea5da2d108b0e3ed1dfc783f99b4",
"feerate_percentiles": [
558,
571,
590,
618,
659
],
"height": 821595,
"ins": 5399,
"maxfee": 25877000,
"maxfeerate": 63795,
"maxtxsize": 43152,
"medianfee": 89090,
"mediantime": 1702801119,
"mediantxsize": 321,
"minfee": 33880,
"minfeerate": 180,
"mintxsize": 151,
"outs": 12171,
"subsidy": 625000000,
"swtotal_size": 1649376,
"swtotal_weight": 3924735,
"swtxs": 4216,
"time": 1702804998,
"total_out": 206749061584,
"total_size": 1666152,
"total_weight": 3991839,
"totalfee": 635823245,
"txs": 4263,
"utxo_increase": 6772,
"utxo_size_inc": 549895,
"utxo_increase_actual": 6766,
"utxo_size_inc_actual": 549338
}View all Config Options
bitcoind -helpBitcoin Core version v25.0.0
Usage: bitcoind [options] Start Bitcoin Core
Options:
-?
Print this help message and exit
-alertnotify=
Execute command when an alert is raised (%s in cmd is replaced by
message)
-assumevalid=
If this block is in the chain assume that it and its ancestors are valid
and potentially skip their script verification (0 to verify all,
default:
000000000000000000035c3f0d31e71a5ee24c5aaf3354689f65bd7b07dee632,
testnet:
0000000000000021bc50a89cde4870d4a81ffe0153b3c8de77b435a2fd3f6761,
signet:
0000004429ef154f7e00b4f6b46bfbe2d2678ecd351d95bbfca437ab9a5b84ec)
-blockfilterindex=
Maintain an index of compact filters by block (default: 0, values:
basic). If is not supplied or if = 1, indexes for
all known types are enabled.
-blocknotify=
Execute command when the best block changes (%s in cmd is replaced by
block hash)
-blockreconstructionextratxn=
Extra transactions to keep in memory for compact block reconstructions
(default: 100)
-blocksdir=
Specify directory to hold blocks subdirectory for *.dat files (default:
)
-blocksonly
Whether to reject transactions from network peers. Automatic broadcast
and rebroadcast of any transactions from inbound peers is
disabled, unless the peer has the 'forcerelay' permission. RPC
transactions are not affected. (default: 0)
-coinstatsindex
Maintain coinstats index used by the gettxoutsetinfo RPC (default: 0)
-conf=
Specify path to read-only configuration file. Relative paths will be
prefixed by datadir location (only useable from command line, not
configuration file) (default: bitcoin.conf)
-daemon
Run in the background as a daemon and accept commands (default: 0)
-daemonwait
Wait for initialization to be finished before exiting. This implies
-daemon (default: 0)
-datadir=
Specify data directory
-dbcache=
Maximum database cache size MiB (4 to 16384, default: 450). In
addition, unused mempool memory is shared for this cache (see
-maxmempool).
-debuglogfile=
Specify location of debug log file (default: debug.log). Relative paths
will be prefixed by a net-specific datadir location. Pass
-nodebuglogfile to disable writing the log to a file.
-includeconf=
Specify additional configuration file, relative to the -datadir path
(only useable from configuration file, not command line)
-loadblock=
Imports blocks from external file on startup
-maxmempool=
Keep the transaction memory pool below megabytes (default: 300)
-maxorphantx=
Keep at most unconnectable transactions in memory (default: 100)
-mempoolexpiry=
Do not keep transactions in the mempool longer than hours (default:
336)
-par=
Set the number of script verification threads (-4 to 15, 0 = auto, <0 =
leave that many cores free, default: 0)
-persistmempool
Whether to save the mempool on shutdown and load on restart (default: 1)
-pid=
Specify pid file. Relative paths will be prefixed by a net-specific
datadir location. (default: bitcoind.pid)
-prune=
Reduce storage requirements by enabling pruning (deleting) of old
blocks. This allows the pruneblockchain RPC to be called to
delete specific blocks and enables automatic pruning of old
blocks if a target size in MiB is provided. This mode is
incompatible with -txindex. Warning: Reverting this setting
requires re-downloading the entire blockchain. (default: 0 =
disable pruning blocks, 1 = allow manual pruning via RPC, >=550 =
automatically prune block files to stay under the specified
target size in MiB)
-reindex
Rebuild chain state and block index from the blk*.dat files on disk.
This will also rebuild active optional indexes.
-reindex-chainstate
Rebuild chain state from the currently indexed blocks. When in pruning
mode or if blocks on disk might be corrupted, use full -reindex
instead. Deactivate all optional indexes before running this.
-settings=
Specify path to dynamic settings data file. Can be disabled with
-nosettings. File is written at runtime and not meant to be
edited by users (use bitcoin.conf instead for custom settings).
Relative paths will be prefixed by datadir location. (default:
settings.json)
-shutdownnotify=
Execute command immediately before beginning shutdown. The need for
shutdown may be urgent, so be careful not to delay it long (if
the command doesn't require interaction with the server, consider
having it fork into the background).
-startupnotify=
Execute command on startup.
-txindex
Maintain a full transaction index, used by the getrawtransaction rpc
call (default: 0)
-version
Print version and exit
Connection options:
-addnode=
Add a node to connect to and attempt to keep the connection open (see
the addnode RPC help for more info). This option can be specified
multiple times to add multiple nodes; connections are limited to
8 at a time and are counted separately from the -maxconnections
limit.
-asmap=
Specify asn mapping used for bucketing of the peers (default:
ip_asn.map). Relative paths will be prefixed by the net-specific
datadir location.
-bantime=
Default duration (in seconds) of manually configured bans (default:
86400)
-bind=[:][=onion]
Bind to given address and always listen on it (default: 0.0.0.0). Use
[host]:port notation for IPv6. Append =onion to tag any incoming
connections to that address and port as incoming Tor connections
(default: 127.0.0.1:8334=onion, testnet: 127.0.0.1:18334=onion,
signet: 127.0.0.1:38334=onion, regtest: 127.0.0.1:18445=onion)
-cjdnsreachable
If set, then this host is configured for CJDNS (connecting to fc00::/8
addresses would lead us to the CJDNS network, see doc/cjdns.md)
(default: 0)
-connect=
Connect only to the specified node; -noconnect disables automatic
connections (the rules for this peer are the same as for
-addnode). This option can be specified multiple times to connect
to multiple nodes.
-discover
Discover own IP addresses (default: 1 when listening and no -externalip
or -proxy)
-dns
Allow DNS lookups for -addnode, -seednode and -connect (default: 1)
-dnsseed
Query for peer addresses via DNS lookup, if low on addresses (default: 1
unless -connect used or -maxconnections=0)
-externalip=
Specify your own public address
-fixedseeds
Allow fixed seeds if DNS seeds don't provide peers (default: 1)
-forcednsseed
Always query for peer addresses via DNS lookup (default: 0)
-i2pacceptincoming
Whether to accept inbound I2P connections (default: 1). Ignored if
-i2psam is not set. Listening for inbound I2P connections is done
through the SAM proxy, not by binding to a local address and
port.
-i2psam=
I2P SAM proxy to reach I2P peers and accept I2P connections (default:
none)
-listen
Accept connections from outside (default: 1 if no -proxy, -connect or
-maxconnections=0)
-listenonion
Automatically create Tor onion service (default: 1)
-maxconnections=
Maintain at most connections to peers (default: 125). This limit
does not apply to connections manually added via -addnode or the
addnode RPC, which have a separate limit of 8.
-maxreceivebuffer=
Maximum per-connection receive buffer, *1000 bytes (default: 5000)
-maxsendbuffer=
Maximum per-connection send buffer, *1000 bytes (default: 1000)
-maxtimeadjustment
Maximum allowed median peer time offset adjustment. Local perspective of
time may be influenced by outbound peers forward or backward by
this amount (default: 4200 seconds).
-maxuploadtarget=
Tries to keep outbound traffic under the given target per 24h. Limit
does not apply to peers with 'download' permission or blocks
created within past week. 0 = no limit (default: 0M). Optional
suffix units [k|K|m|M|g|G|t|T] (default: M). Lowercase is 1000
base while uppercase is 1024 base
-natpmp
Use NAT-PMP to map the listening port (default: 0)
-networkactive
Enable all P2P network activity (default: 1). Can be changed by the
setnetworkactive RPC command
-onion=
Use separate SOCKS5 proxy to reach peers via Tor onion services, set
-noonion to disable (default: -proxy)
-onlynet=
Make automatic outbound connections only to network (ipv4, ipv6,
onion, i2p, cjdns). Inbound and manual connections are not
affected by this option. It can be specified multiple times to
allow multiple networks.
-peerblockfilters
Serve compact block filters to peers per BIP 157 (default: 0)
-peerbloomfilters
Support filtering of blocks and transaction with bloom filters (default:
0)
-port=
Listen for connections on . Nodes not using the default ports
(default: 8333, testnet: 18333, signet: 38333, regtest: 18444)
are unlikely to get incoming connections. Not relevant for I2P
(see doc/i2p.md).
-proxy=
Connect through SOCKS5 proxy, set -noproxy to disable (default:
disabled)
-proxyrandomize
Randomize credentials for every proxy connection. This enables Tor
stream isolation (default: 1)
-seednode=
Connect to a node to retrieve peer addresses, and disconnect. This
option can be specified multiple times to connect to multiple
nodes.
-timeout=
Specify socket connection timeout in milliseconds. If an initial attempt
to connect is unsuccessful after this amount of time, drop it
(minimum: 1, default: 5000)
-torcontrol=:
Tor control port to use if onion listening enabled (default:
127.0.0.1:9051)
-torpassword=
Tor control port password (default: empty)
-upnp
Use UPnP to map the listening port (default: 1 when listening and no
-proxy)
-whitebind=<[permissions@]addr>
Bind to the given address and add permission flags to the peers
connecting to it. Use [host]:port notation for IPv6. Allowed
permissions: bloomfilter (allow requesting BIP37 filtered blocks
and transactions), noban (do not ban for misbehavior; implies
download), forcerelay (relay transactions that are already in the
mempool; implies relay), relay (relay even in -blocksonly mode,
and unlimited transaction announcements), mempool (allow
requesting BIP35 mempool contents), download (allow getheaders
during IBD, no disconnect after maxuploadtarget limit), addr
(responses to GETADDR avoid hitting the cache and contain random
records with the most up-to-date info). Specify multiple
permissions separated by commas (default:
download,noban,mempool,relay). Can be specified multiple times.
-whitelist=<[permissions@]IP address or network>
Add permission flags to the peers connecting from the given IP address
(e.g. 1.2.3.4) or CIDR-notated network (e.g. 1.2.3.0/24). Uses
the same permissions as -whitebind. Can be specified multiple
times.
Wallet options:
-addresstype
What type of addresses to use ("legacy", "p2sh-segwit", "bech32", or
"bech32m", default: "bech32")
-avoidpartialspends
Group outputs by address, selecting many (possibly all) or none, instead
of selecting on a per-output basis. Privacy is improved as
addresses are mostly swept with fewer transactions and outputs
are aggregated in clean change addresses. It may result in higher
fees due to less optimal coin selection caused by this added
limitation and possibly a larger-than-necessary number of inputs
being used. Always enabled for wallets with "avoid_reuse"
enabled, otherwise default: 0.
-changetype
What type of change to use ("legacy", "p2sh-segwit", "bech32", or
"bech32m"). Default is "legacy" when -addresstype=legacy, else it
is an implementation detail.
-consolidatefeerate=
The maximum feerate (in BTC/kvB) at which transaction building may use
more inputs than strictly necessary so that the wallet's UTXO
pool can be reduced (default: 0.0001).
-disablewallet
Do not load the wallet and disable wallet RPC calls
-discardfee=
The fee rate (in BTC/kvB) that indicates your tolerance for discarding
change by adding it to the fee (default: 0.0001). Note: An output
is discarded if it is dust at this rate, but we will always
discard up to the dust relay fee and a discard fee above that is
limited by the fee estimate for the longest target
-fallbackfee=
A fee rate (in BTC/kvB) that will be used when fee estimation has
insufficient data. 0 to entirely disable the fallbackfee feature.
(default: 0.00)
-keypool=
Set key pool size to (default: 1000). Warning: Smaller sizes may
increase the risk of losing funds when restoring from an old
backup, if none of the addresses in the original keypool have
been used.
-maxapsfee=
Spend up to this amount in additional (absolute) fees (in BTC) if it
allows the use of partial spend avoidance (default: 0.00)
-mintxfee=
Fee rates (in BTC/kvB) smaller than this are considered zero fee for
transaction creation (default: 0.00001)
-paytxfee=
Fee rate (in BTC/kvB) to add to transactions you send (default: 0.00)
-signer=
External signing tool, see doc/external-signer.md
-spendzeroconfchange
Spend unconfirmed change when sending transactions (default: 1)
-txconfirmtarget=
If paytxfee is not set, include enough fee so transactions begin
confirmation on average within n blocks (default: 6)
-wallet=
Specify wallet path to load at startup. Can be used multiple times to
load multiple wallets. Path is to a directory containing wallet
data and log files. If the path is not absolute, it is
interpreted relative to . This only loads existing
wallets and does not create new ones. For backwards compatibility
this also accepts names of existing top-level data files in
.
-walletbroadcast
Make the wallet broadcast transactions (default: 1)
-walletdir=
Specify directory to hold wallets (default: /wallets if it
exists, otherwise )
-walletnotify=
Execute command when a wallet transaction changes. %s in cmd is replaced
by TxID, %w is replaced by wallet name, %b is replaced by the
hash of the block including the transaction (set to 'unconfirmed'
if the transaction is not included) and %h is replaced by the
block height (-1 if not included). %w is not currently
implemented on windows. On systems where %w is supported, it
should NOT be quoted because this would break shell escaping used
to invoke the command.
-walletrbf
Send transactions with full-RBF opt-in enabled (RPC only, default: 1)
ZeroMQ notification options:
-zmqpubhashblock=
Enable publish hash block in
-zmqpubhashblockhwm=
Set publish hash block outbound message high water mark (default: 1000)
-zmqpubhashtx=
Enable publish hash transaction in
-zmqpubhashtxhwm=
Set publish hash transaction outbound message high water mark (default:
1000)
-zmqpubrawblock=
Enable publish raw block in
-zmqpubrawblockhwm=
Set publish raw block outbound message high water mark (default: 1000)
-zmqpubrawtx=
Enable publish raw transaction in
-zmqpubrawtxhwm=
Set publish raw transaction outbound message high water mark (default:
1000)
-zmqpubsequence=
Enable publish hash block and tx sequence in
-zmqpubsequencehwm=
Set publish hash sequence message high water mark (default: 1000)
Debugging/Testing options:
-debug=
Output debug and trace logging (default: -nodebug, supplying
is optional). If is not supplied or if = 1,
output all debug and trace logging. can be: addrman,
bench, blockstorage, cmpctblock, coindb, estimatefee, http, i2p,
ipc, leveldb, libevent, mempool, mempoolrej, net, proxy, prune,
qt, rand, reindex, rpc, scan, selectcoins, tor, txreconciliation,
util, validation, walletdb, zmq. This option can be specified
multiple times to output multiple categories.
-debugexclude=
Exclude debug and trace logging for a category. Can be used in
conjunction with -debug=1 to output debug and trace logging for
all categories except the specified category. This option can be
specified multiple times to exclude multiple categories.
-help-debug
Print help message with debugging options and exit
-logips
Include IP addresses in debug output (default: 0)
-logsourcelocations
Prepend debug output with name of the originating source location
(source file, line number and function name) (default: 0)
-logthreadnames
Prepend debug output with name of the originating thread (only available
on platforms supporting thread_local) (default: 0)
-logtimestamps
Prepend debug output with timestamp (default: 1)
-maxtxfee=
Maximum total fees (in BTC) to use in a single wallet transaction;
setting this too low may abort large transactions (default: 0.10)
-printtoconsole
Send trace/debug info to console (default: 1 when no -daemon. To disable
logging to file, set -nodebuglogfile)
-shrinkdebugfile
Shrink debug.log file on client startup (default: 1 when no -debug)
-uacomment=
Append comment to the user agent string
Chain selection options:
-chain=
Use the chain (default: main). Allowed values: main, test,
signet, regtest
-signet
Use the signet chain. Equivalent to -chain=signet. Note that the network
is defined by the -signetchallenge parameter
-signetchallenge
Blocks must satisfy the given script to be considered valid (only for
signet networks; defaults to the global default signet test
network challenge)
-signetseednode
Specify a seed node for the signet network, in the hostname[:port]
format, e.g. sig.net:1234 (may be used multiple times to specify
multiple seed nodes; defaults to the global default signet test
network seed node(s))
-testnet
Use the test chain. Equivalent to -chain=test.
Node relay options:
-bytespersigop
Equivalent bytes per sigop in transactions for relay and mining
(default: 20)
-datacarrier
Relay and mine data carrier transactions (default: 1)
-datacarriersize
Maximum size of data in data carrier transactions we relay and mine
(default: 83)
-mempoolfullrbf
Accept transaction replace-by-fee without requiring replaceability
signaling (default: 0)
-minrelaytxfee=
Fees (in BTC/kvB) smaller than this are considered zero fee for
relaying, mining and transaction creation (default: 0.00001)
-permitbaremultisig
Relay non-P2SH multisig (default: 1)
-whitelistforcerelay
Add 'forcerelay' permission to whitelisted inbound peers with default
permissions. This will relay transactions even if the
transactions were already in the mempool. (default: 0)
-whitelistrelay
Add 'relay' permission to whitelisted inbound peers with default
permissions. This will accept relayed transactions even when not
relaying transactions (default: 1)
Block creation options:
-blockmaxweight=
Set maximum BIP141 block weight (default: 3996000)
-blockmintxfee=
Set lowest fee rate (in BTC/kvB) for transactions to be included in
block creation. (default: 0.00001)
RPC server options:
-rest
Accept public REST requests (default: 0)
-rpcallowip=
Allow JSON-RPC connections from specified source. Valid for are a
single IP (e.g. 1.2.3.4), a network/netmask (e.g.
1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This
option can be specified multiple times
-rpcauth=
Username and HMAC-SHA-256 hashed password for JSON-RPC connections. The
field comes in the format: :$. A
canonical python script is included in share/rpcauth. The client
then connects normally using the
rpcuser=/rpcpassword= pair of arguments. This
option can be specified multiple times
-rpcbind=[:port]
Bind to given address to listen for JSON-RPC connections. Do not expose
the RPC server to untrusted networks such as the public internet!
This option is ignored unless -rpcallowip is also passed. Port is
optional and overrides -rpcport. Use [host]:port notation for
IPv6. This option can be specified multiple times (default:
127.0.0.1 and ::1 i.e., localhost)
-rpccookiefile=
Location of the auth cookie. Relative paths will be prefixed by a
net-specific datadir location. (default: data dir)
-rpcpassword=
Password for JSON-RPC connections
-rpcport=
Listen for JSON-RPC connections on (default: 8332, testnet:
18332, signet: 38332, regtest: 18443)
-rpcserialversion
Sets the serialization of raw transaction or block hex returned in
non-verbose mode, non-segwit(0) or segwit(1) (default: 1)
-rpcthreads=
Set the number of threads to service RPC calls (default: 4)
-rpcuser=
Username for JSON-RPC connections
-rpcwhitelist=
Set a whitelist to filter incoming RPC calls for a specific user. The
field comes in the format: :,,...,. If multiple whitelists are set for a given user,
they are set-intersected. See -rpcwhitelistdefault documentation
for information on default whitelist behavior.
-rpcwhitelistdefault
Sets default behavior for rpc whitelisting. Unless rpcwhitelistdefault
is set to 0, if any -rpcwhitelist is set, the rpc server acts as
if all rpc users are subject to empty-unless-otherwise-specified
whitelists. If rpcwhitelistdefault is set to 1 and no
-rpcwhitelist is set, rpc server acts as if all rpc users are
subject to empty whitelists.
-server
Accept command line and JSON-RPC commands View Bitcoin cli named arguments
bitcoin-cli -?Get Info about your node
bitcoin-cli -getinfo