# on receiving block 307144 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-06-02T21:28:59Z
# as written in the block header
2026-06-02T21:26:27Z
$ uptime # since last reboot
21:28:59 up 75 days, 12:21, 0 users, load average: 2.42, 2.61, 2.58
$ battery.sh
163%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1357644 kB
$ du -h -d1 .bitcoin/signet
300M .bitcoin/signet/indexes
21M .bitcoin/signet/wallets
485M .bitcoin/signet/blocks
3.7G .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
307144
$ BH=$(bitcoin-cli -signet getblockhash 307144); echo $BH
0000000c40f960deea64fa71114b707ff0f614dc38a7906c9712302cd486bf53
$ bitcoin-cli -signet getblockheader 0000000c40f960deea64fa71114b707ff0f614dc38a7906c9712302cd486bf53
{
"hash": "0000000c40f960deea64fa71114b707ff0f614dc38a7906c9712302cd486bf53",
"confirmations": 1,
"height": 307144,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "9a8e5a0d052790fb0f5d12b35cfe743d919fae07fed74fe82ec8dea6d1295705",
"time": 1780435587,
"mediantime": 1780433383,
"nonce": 3209107,
"bits": "1d1490f5",
"target": "0000001490f50000000000000000000000000000000000000000000000000000",
"difficulty": 0.04862263684784939,
"chainwork": "00000000000000000000000000000000000000000000000000000ddf551682d5",
"nTx": 64,
"previousblockhash": "0000000bdbd4f17e6b9e5b58fb942bb4577dfa94d44696f947f5c745077f97df"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... ...c 4.f9 6.de
ea64 fa71 114b 7.7f
f.f6 14dc 38a7 9.6c
9712 3.2c d486 bf53
$ : 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
307144 sf: ...c 4.f9 6.de 7.7f 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 .
307144 sk: bf53 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 .
307144 ak: d1.. 81
$ : Following is the jointkode
307144 jk: bf53 d1.. 81
### niceblack moved to the end
$ bitcoin-cli -signet getmempoolinfo
{
"loaded": true,
"size": 3,
"bytes": 100341,
"usage": 160072,
"total_fee": 0.00054248,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 2,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 25,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
280
## Current epoch estimation is -0.91%
## 712 of 2016, i.e. 35%, 1304 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
344801.877761431
$ bitcoin-cli -signet getnetworkhashps 2016 306431
347971.3775737199
$ bitcoin-cli -signet getnetworkhashps 2016 304415
339567.6604445974
$ bitcoin-cli -signet getblockstats 307144
{
"avgfee": 14854,
"avgfeerate": 39,
"avgtxsize": 511,
"blockhash": "0000000c40f960deea64fa71114b707ff0f614dc38a7906c9712302cd486bf53",
"feerate_percentiles": [
0,
0,
0,
0,
1
],
"height": 307144,
"ins": 127,
"maxfee": 856764,
"maxfeerate": 5176,
"maxtxsize": 10379,
"medianfee": 128,
"mediantime": 1780433383,
"mediantxsize": 205,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 142,
"outs": 384,
"subsidy": 2500000000,
"swtotal_size": 31962,
"swtotal_weight": 93090,
"swtxs": 61,
"time": 1780435587,
"total_out": 3017987073884,
"total_size": 32246,
"total_weight": 94226,
"totalfee": 935830,
"txs": 64,
"utxo_increase": 257,
"utxo_size_inc": 20980,
"utxo_increase_actual": 214,
"utxo_size_inc_actual": 16467
}
$ bitcoin-cli -signet getnettotals
{
"totalbytesrecv": 630958685,
"totalbytessent": 17866663598,
"timemillis": 1780435740396,
"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 3 3
out 11 11 2 1
total 14 14
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -signet -addrinfo
{
"addresses_known": {
"ipv4": 1245,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 1245
}
}
### v2_peerinfo are in v2_peerinfo-signet.txt
$ bitcoin-cli -signet getpeerinfo | grep -w 'v2' | uniq -c
9 "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
c0f47823976b423a
161075faf19e1983e2d5cb593e6395c8408c228cffdcc8ad88d501db468cad96
40ec672fa3c05877
a23e152bd193bed947a5c41d92d23bdf00c87070969388f424525a6a385301af
34a9821b72444698
919c5ed77bc75090e18164d4a49ef4f4a140d790ac0dadb6daa7be7e9338f455
cde2eb7fe15f140e
78f1afad61732cb90d222c43c680d5b85a0bb85f36ad1e6fb9f5432372dc9384
7b4566df59a7b36f
add3f381ef7f486803cf4c5740cbc5be215df3a4cf483457c9f2e8d5d9485936
efc846ec47160038
4df6725b8c42554a1c51ab31847d4ef1cf0c32be873b4085a85c81e0c59c886c
0491a896711aa515
da03a9bfee46eb457553af9a85cddb507c17840af902ed50415d81c05063b975
82b27e77426c9cf3
4e6fe04a23e2742095b71a4f4152c2e08ab63d6eee2519f94b6561e4c687b257
d2709e5d6ed1ec3a
56b2c40472acea52b0a913d338c4624527351c338806e8e3f2431585b830af7c
$ niceblack.sh $BH $BC
____ ___ ______
|___ \ / _ \____ |
__) | | | | / /
|__ <| | | | / /
___) | |_| |/ /
|____/ \___//_/
__ _ _ _ _
/_ | || | | || |
| | || |_| || |_
| |__ _|__ _|
| | | | | |
|_| |_| |_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... ...c 4.f9 6.de .f |
| 1. ea64 fa71 114b 7.7f 1f |
| 2. f.f6 14dc 38a7 9.6c 2f |
| 3. 9712 3.2c d486 bf53 3f |
'=== ==== ==== ==== ==== ==='
jk: bf53 d1.. 81