# on receiving block 309491 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-06-19T08:10:49Z
# as written in the block header
2026-06-19T08:10:16Z
$ uptime # since last reboot
08:10:49 up 91 days, 23:03, 0 users, load average: 1.49, 1.80, 2.03
$ battery.sh
157%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1201272 kB
$ du -h -d1 .bitcoin/signet
305M .bitcoin/signet/indexes
21M .bitcoin/signet/wallets
535M .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
309491
$ BH=$(bitcoin-cli -signet getblockhash 309491); echo $BH
000000020d74db4e73f46dfe0aafaa308c11921bab2f09546c10be97c555b06b
$ bitcoin-cli -signet getblockheader 000000020d74db4e73f46dfe0aafaa308c11921bab2f09546c10be97c555b06b
{
"hash": "000000020d74db4e73f46dfe0aafaa308c11921bab2f09546c10be97c555b06b",
"confirmations": 1,
"height": 309491,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "69e552587e6594bfc63850abf9114d8dadc9d665554684eaa34468af2dc395b1",
"time": 1781856616,
"mediantime": 1781852167,
"nonce": 263589804,
"bits": "1d146a04",
"target": "000000146a040000000000000000000000000000000000000000000000000000",
"difficulty": 0.04898494610796347,
"chainwork": "00000000000000000000000000000000000000000000000000000e51d467484c",
"nTx": 44,
"previousblockhash": "0000000b5cb7823d645b1d2b0a26b6c2f9f32b63877a4274b066349b6757c899"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... ...2 .d74 db4e
73f4 6dfe .aaf aa3.
8c11 921b ab2f .954
6c1. be97 c555 b.6b
$ : 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
309491 sf: ...2 .d74 .aaf aa3. M
$ : 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 .
309491 sk: b.6b 81
$ : 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 .
309491 ak: 7365 81
$ : Following is the jointkode
309491 jk: b06b 7365 81
### niceblack moved to the end
$ bitcoin-cli -signet getmempoolinfo
{
"loaded": true,
"size": 7,
"bytes": 1861,
"usage": 94536,
"total_fee": 0.00983555,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 1,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 25,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
213
## Current epoch estimation is -1.15%
## 1043 of 2016, i.e. 51%, 973 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
346508.6294417576
$ bitcoin-cli -signet getnetworkhashps 2016 308447
350573.0694396333
$ bitcoin-cli -signet getnetworkhashps 2016 306431
347971.3775737199
$ bitcoin-cli -signet getblockstats 309491
{
"avgfee": 20005,
"avgfeerate": 38,
"avgtxsize": 643,
"blockhash": "000000020d74db4e73f46dfe0aafaa308c11921bab2f09546c10be97c555b06b",
"feerate_percentiles": [
0,
0,
0,
0,
2
],
"height": 309491,
"ins": 53,
"maxfee": 770364,
"maxfeerate": 4654,
"maxtxsize": 14637,
"medianfee": 14,
"mediantime": 1781852167,
"mediantxsize": 191,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 118,
"outs": 489,
"subsidy": 2500000000,
"swtotal_size": 27533,
"swtotal_weight": 89291,
"swtxs": 42,
"time": 1781856616,
"total_out": 3101291809752,
"total_size": 27651,
"total_weight": 89763,
"totalfee": 860253,
"txs": 44,
"utxo_increase": 436,
"utxo_size_inc": 33999,
"utxo_increase_actual": 397,
"utxo_size_inc_actual": 29808
}
$ bitcoin-cli -signet getnettotals
{
"totalbytesrecv": 979939364,
"totalbytessent": 28583234235,
"timemillis": 1781856650178,
"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 5 5
out 11 11 2 1
total 16 16
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -signet -addrinfo
{
"addresses_known": {
"ipv4": 1039,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 1039
}
}
### v2_peerinfo are in v2_peerinfo-signet.txt
$ bitcoin-cli -signet getpeerinfo | grep -w 'v2' | uniq -c
13 "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
7d27257fcc87eff6
c72f9ccdc4f2fe6827871bbcdb3d87728dd8135438801b55cc9938b44e002bca
a9e407828463a7f3
8723d91baabc6c128df59d5dcfcad63c2d9c50d4cb7041af38b38cfec837ce18
82b27e77426c9cf3
e234f196dc6cac756b95e1f09ad32ab8e2e096915b467639f696835045e78e06
02ce84759fdbc1f1
d4e964fe2f38bc6dfa17fefb887ded2510568c38b1f09dca89a7bd4bd541ee69
a4dda9c03849be5c
396733a2381b1a5ba696d6b796031f65e341b1784cdb174731fc53c20fca528e
ccac5f3d92a6d821
083741d149c9fa20eff0ffe1582cda192dff5327f4bc78185371d04457e03fcd
ef33457b76d2201b
92892ec21489e49ae656277936b513539a4cc4b7049736231e1280c0f9916b62
d26dc11e642083e6
4888249f39cdb833771fad3380faed358d7541214788464a3e0e3d24f7d520f7
509e8cf1d81d4e1b
ffbb8c187b8d2bfb4277fa0f391270bc73a5b8d78186d4e2ab78c8fdcd010795
2ce2bef7160cebb4
8277b6d6d333cbb1ee2e60bdc85b42e5587a470c1f869fc3362d561c6ffe5efe
b70f5f18268c0e18
4abc9732163b88246db52377e551b1eb8a4c07d479ee352e47ae693568f47477
45ed3cc4b3ee424c
52b66382a34d361e1f3865c2652084690abd287bef4f75860e286aa727fd12cb
073863b4569202fb
58cdcb77c92e34a277f8fc5b318662653042aac2b13d84e4e85bad6b287a384c
$ niceblack.sh $BH $BC
_____ ___ ___ _ _ ___ _
|___ / / _ \ / _ \ | || | / _ \/ |
|_ \| | | | (_) | | || || (_) | |
___) | |_| |\__, | |__ _\__, | |
|____/ \___/ /_/ |_| /_/|_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... ...2 .d74 db4e .f |
| 1. 73f4 6dfe .aaf aa3. 1f |
| 2. 8c11 921b ab2f .954 2f |
| 3. 6c1. be97 c555 b.6b 3f |
'=== ==== ==== ==== ==== ==='
jk: b.6b 7365 81