# on receiving block 302540 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-01T23:46:53Z
# as written in the block header
2026-05-01T23:45:47Z
$ uptime # since last reboot
23:46:52 up 43 days, 14:39, 0 users, load average: 1.07, 1.43, 1.76
$ battery.sh
156%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1737596 kB
$ du -h -d1 .bitcoin/signet
293M .bitcoin/signet/indexes
19M .bitcoin/signet/wallets
589M .bitcoin/signet/blocks
3.6G .bitcoin/signet/chainstate
4.5G .bitcoin/signet
$ df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 912G 435G 476G 48% /
$ bitcoind -version
Bitcoin Core daemon version v31.0.0rc4 bitcoind
Copyright (C) 2009-2026 The Bitcoin Core developers
Please contribute if you find Bitcoin Core useful. Visit
for further information about the software.
The source code is available from .
This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or
$ BC=$(bitcoin-cli -signet getblockcount); echo $BC
302540
$ BH=$(bitcoin-cli -signet getblockhash 302540); echo $BH
0000000080a3fca11ae295b2a65c866466fdc3222b7db621a85bf5b896b7cf1d
$ bitcoin-cli -signet getblockheader 0000000080a3fca11ae295b2a65c866466fdc3222b7db621a85bf5b896b7cf1d
{
"hash": "0000000080a3fca11ae295b2a65c866466fdc3222b7db621a85bf5b896b7cf1d",
"confirmations": 1,
"height": 302540,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "40183fe98f71a0f104ea17ac1a5d39f992db45427b63ea2c3a1de0269f82e0b2",
"time": 1777679147,
"mediantime": 1777678427,
"nonce": 537999771,
"bits": "1d14e3c0",
"target": "00000014e3c00000000000000000000000000000000000000000000000000000",
"difficulty": 0.04786986933757188,
"chainwork": "00000000000000000000000000000000000000000000000000000d0331be55d4",
"nTx": 17,
"previousblockhash": "00000010d5ed5bdc301407445cb9ef22f3c3e64d55356136aaeb33ed398ec29e"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... 8.a3 fca1
1ae2 95b2 a65c 8664
66fd c322 2b7d b621
a85b f5b8 96b7 cf1d
$ : Following was the shortform
$ : from which shortkode came
$ last=${BH: -4}
$ a=$(echo $BH | cut -b-60 \
| fold -w 4 \
| grep -Ev '^(0000|[^0]{4})$')
$ R=$(echo $a $last | cut -b-20)
$ printf "%s sf: " $BC
$ { echo $R | grep "$last$" \
|| echo $R M; } | tr "0\n" ". "
echo
302540 sf: 8.a3 cf1d
$ : Following was the shortkode
$ : from which anecdote came
$ nz=$(echo $BH | fold -w 4 \
| grep -cE '^[^0]{4}$')
$ z=$(echo $BH | fold -w 4 \
| grep -c '^0000$')
$ nzzs=$(((${nz}<<4)+${z}))
$ printf "%s sk: " $BC
$ printf "%s %x\n" \
$last \
$nzzs \
| tr 0 .
302540 sk: cf1d d2
$ : Following is an anecdote
$ all=$(echo $BH | fold -w 4 \
| sed 's/^/0x/' \
| paste -s | tr '\t' ^)
$ printf "%s ak: " $BC
$ printf "%04x %02x\n" \
$(($all)) $nzzs \
| tr 0 .
302540 ak: efa. d2
$ : Following is the jointkode
302540 jk: cf1d efa. d2
### niceblack moved to the end
$ bitcoin-cli -signet getmempoolinfo
{
"loaded": true,
"size": 2,
"bytes": 294,
"usage": 3344,
"total_fee": 0.00000598,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 25,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
202
## Current epoch estimation is +0.37%
## 140 of 2016, i.e. 6%, 1876 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
343749.1150219585
$ bitcoin-cli -signet getnetworkhashps 2016 302399
342474.190435588
$ bitcoin-cli -signet getnetworkhashps 2016 300383
346462.8663674932
$ bitcoin-cli -signet getblockstats 302540
{
"avgfee": 8070,
"avgfeerate": 23,
"avgtxsize": 587,
"blockhash": "0000000080a3fca11ae295b2a65c866466fdc3222b7db621a85bf5b896b7cf1d",
"feerate_percentiles": [
1,
2,
26,
26,
26
],
"height": 302540,
"ins": 42,
"maxfee": 73625,
"maxfeerate": 200,
"maxtxsize": 5260,
"medianfee": 389,
"mediantime": 1777678427,
"mediantxsize": 244,
"minfee": 172,
"minfeerate": 1,
"mintxsize": 162,
"outs": 64,
"subsidy": 2500000000,
"swtotal_size": 9397,
"swtotal_weight": 22042,
"swtxs": 16,
"time": 1777679147,
"total_out": 98006757253,
"total_size": 9397,
"total_weight": 22042,
"totalfee": 129130,
"txs": 17,
"utxo_increase": 22,
"utxo_size_inc": 1696,
"utxo_increase_actual": 20,
"utxo_size_inc_actual": 1464
}
$ bitcoin-cli -signet getnettotals
{
"totalbytesrecv": 20340480,
"totalbytessent": 509606772,
"timemillis": 1777679213266,
"uploadtarget": {
"timeframe": 86400,
"target": 0,
"target_reached": false,
"serve_historical_blocks": true,
"bytes_left_in_cycle": 0,
"time_left_in_cycle": 0
}
}
$ bitcoin-cli -signet -netinfo
Bitcoin Core client v31.0.0rc4 signet - server 70016/Satoshi:31.0.0/
ipv4 npr total block manual
in 4 1 5
out 11 0 11 2 1
total 15 1 16
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -signet -addrinfo
{
"addresses_known": {
"ipv4": 1241,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 1241
}
}
### v2_peerinfo are in v2_peerinfo-signet.txt
$ bitcoin-cli -signet getpeerinfo | grep -w 'v2' | uniq -c
12 "transport_protocol_type": "v2",
$ bitcoin-cli getpeerinfo \
| jq -r '.[]
| select ( .transport_protocol_type == "v2" )
| .addr + " " + .session_id' \
| while read addr sid
do
a=$(echo ${addr%\]*} | tr -d '\[' | md5sum | cut -b-16);
printf "%s\n\t%s\n" "$a" "$sid"
done
82b27e77426c9cf3
40d5913d6710f8e753b9da842db391ba6f98c7d47d5b39096f504dfca1824933
2422645f1d448cf3
b44009c8ddfe51d477afe384265ae44214a0ef4a5b84e5ebf50180d8f7029b4c
9c92af8aca057984
41cdc4ef9bcce8c36a6e3b64d09e7fa21df4fc09d4d04159d2257fb6db73e3d0
dae5386813585576
3eb22b32781af816a5b542098b6561c6e870a83ceb3732f1abcd39ae71542e59
846416a94258a525
94f947719dd7c438e12932baeacbdfefb50fb203791cdba393113e1ebd911b92
8063f4d9bd3f3283
5d8700dbec185d4c78f1376ea417ea58b11a3cb2a2cb7ff2edb245840eef3b93
949e0d5f8f18cf24
9e64a7f9a321684452ebfd12a8a67b58eaf53e524bc28f8c4218b2a38deeecf3
b664943e4e115d75
de3e4a0041a783dc0051b5e96280d551a834a91e480aee3a22941b0e7a58d6b1
7572cba03a3b6157
c96c8427887fe30b1708cc55d869d05fc9b896662bf65f08085790bc08b1bc96
fec491b457d7f6fb
3e53f3c3816d272664c999341d7a986e56881691ba49a02afa52ca00c3e871c7
7b4566df59a7b36f
664b9440fd705ab96113311160ab31283079b6da00f469cba5022923e6ec5e13
ac6bf978890b7474
168a7b74b6c80952b90a103d91a7d836bd42227467a6022ad46e13b4fdf441fe
$ niceblack.sh $BH $BC
| | |
_ \ | _ \ _| | /
_.__/_|\___/\__|_\_\
__ / \_ ) __| | | \
_ \ ( | / __ \__ _|( |
___/\__/___|___/ _|\__/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... 8.a3 fca1 .f |
| 1. 1ae2 95b2 a65c 8664 1f |
| 2. 66fd c322 2b7d b621 2f |
| 3. a85b f5b8 96b7 cf1d 3f |
'=== ==== ==== ==== ==== ==='
jk: cf1d efa. d2