# on receiving block 309937 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-06-22T13:23:21Z
# as written in the block header
2026-06-22T13:22:50Z
$ uptime # since last reboot
13:23:21 up 95 days, 4:16, 0 users, load average: 2.55, 2.51, 2.43
$ battery.sh
170%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1185884 kB
$ du -h -d1 .bitcoin/signet
306M .bitcoin/signet/indexes
21M .bitcoin/signet/wallets
569M .bitcoin/signet/blocks
3.8G .bitcoin/signet/chainstate
4.7G .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
309937
$ BH=$(bitcoin-cli -signet getblockhash 309937); echo $BH
0000000d2b238d1a13658b2ef345704b344a6539ed7eb64cd1a295c3876310c0
$ bitcoin-cli -signet getblockheader 0000000d2b238d1a13658b2ef345704b344a6539ed7eb64cd1a295c3876310c0
{
"hash": "0000000d2b238d1a13658b2ef345704b344a6539ed7eb64cd1a295c3876310c0",
"confirmations": 1,
"height": 309937,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "74e6752ec0aa40b83830095b1be0939c2eac744fb2cfcf2d8366822cc0565e4f",
"time": 1782134570,
"mediantime": 1782131872,
"nonce": 241822771,
"bits": "1d146a04",
"target": "000000146a040000000000000000000000000000000000000000000000000000",
"difficulty": 0.04898494610796347,
"chainwork": "00000000000000000000000000000000000000000000000000000e67ad64db6e",
"nTx": 44,
"previousblockhash": "00000009893f7bf2de2fa43c52881937ed6fa08bddf7ac97f0bba6187778c3c2"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... ...d 2b23 8d1a
1365 8b2e f345 7.4b
344a 6539 ed7e b64c
d1a2 95c3 8763 1.c.
$ : 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
309937 sf: ...d 7.4b 1.c.
$ : 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 .
309937 sk: 1.c. c1
$ : 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 .
309937 ak: 64f2 c1
$ : Following is the jointkode
309937 jk: 10c0 64f2 c1
### niceblack moved to the end
$ bitcoin-cli -signet getmempoolinfo
{
"loaded": true,
"size": 2,
"bytes": 351,
"usage": 90432,
"total_fee": 0.00001554,
"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
221
## Current epoch estimation is -1.59%
## 1489 of 2016, i.e. 73%, 527 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
344964.0873322164
$ bitcoin-cli -signet getnetworkhashps 2016 308447
350573.0694396333
$ bitcoin-cli -signet getnetworkhashps 2016 306431
347971.3775737199
$ bitcoin-cli -signet getblockstats 309937
{
"avgfee": 15488,
"avgfeerate": 28,
"avgtxsize": 654,
"blockhash": "0000000d2b238d1a13658b2ef345704b344a6539ed7eb64cd1a295c3876310c0",
"feerate_percentiles": [
0,
0,
0,
0,
1
],
"height": 309937,
"ins": 55,
"maxfee": 611510,
"maxfeerate": 3694,
"maxtxsize": 15615,
"medianfee": 14,
"mediantime": 1782131872,
"mediantxsize": 191,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 142,
"outs": 466,
"subsidy": 2500000000,
"swtotal_size": 28002,
"swtotal_weight": 92391,
"swtxs": 42,
"time": 1782134570,
"total_out": 3053029998108,
"total_size": 28144,
"total_weight": 92959,
"totalfee": 666021,
"txs": 44,
"utxo_increase": 411,
"utxo_size_inc": 33707,
"utxo_increase_actual": 373,
"utxo_size_inc_actual": 29568
}
$ bitcoin-cli -signet getnettotals
{
"totalbytesrecv": 1036134788,
"totalbytessent": 30585487620,
"timemillis": 1782134601666,
"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 total block manual
in 2 2
out 11 11 2 1
total 13 13
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -signet -addrinfo
{
"addresses_known": {
"ipv4": 1028,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 1028
}
}
### v2_peerinfo are in v2_peerinfo-signet.txt
$ bitcoin-cli -signet getpeerinfo | grep -w 'v2' | uniq -c
10 "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
6d928997571421d84825693fc526996aa6e1a3b30a218f08245455915dd885f6
cb6d7e2c716bdfc5
c6d449cfc835bd1b0c81c088218e7506cf27ab370765bec060746281f82317b8
413f26415640e02d
7a18f1fec68aa5e4cd694d87672fe64c4a4a213f93edf50d718800dbd9d114ab
a9e407828463a7f3
2287ad6e342f4e285295f5e082798682c11defc8cb74c39fdc096783e543c0f9
efc846ec47160038
821d903b964a4c3739c662d4473bbda54f275d94076f3926a632dd434f2c2a42
0023b28c288594d1
397c9fe047401b6e16a8a5cd0cc1c61fc73e1fb805cd2c66aed9eabfd91563af
cab8c858635df991
de316c5e0e73f11000d8e2c4290f938da5f52bbd1441ac6249062704e3daf52a
d1880a75a2e73e6a
6f07fae3e688c085e3c5952040511902c3024f13caa9c6a4a749be9d93b4e7f8
2c92bdda6fb6f85d
8efa1fe298d7780e56e47dfa41dc191d605004950a957b6a7fa1965544dc994c
c3725707c7756fe6
8619afa0b5b4e446579caeafc01bcfb03d1e2c256e3151c95c9ed5b6ba93c4fc
$ niceblack.sh $BH $BC
_ _ _
| |__| |___ __| |__
| '_ \ / _ \/ _| / /
|_.__/_\___/\__|_\_\
____ __ ___ ___ ________
|__ // \/ _ \/ _ \__ /__ |
|_ \ () \_, /\_, /|_ \ / /
|___/\__/ /_/ /_/|___//_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... ...d 2b23 8d1a .f |
| 1. 1365 8b2e f345 7.4b 1f |
| 2. 344a 6539 ed7e b64c 2f |
| 3. d1a2 95c3 8763 1.c. 3f |
'=== ==== ==== ==== ==== ==='
jk: 1.c. 64f2 c1