# on receiving block 308897 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-06-15T02:45:49Z
# as written in the block header
2026-06-15T02:45:37Z
$ uptime # since last reboot
02:45:49 up 87 days, 17:38, 0 users, load average: 3.50, 2.28, 2.21
$ battery.sh
158%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1268872 kB
$ du -h -d1 .bitcoin/signet
303M .bitcoin/signet/indexes
21M .bitcoin/signet/wallets
483M .bitcoin/signet/blocks
3.8G .bitcoin/signet/chainstate
4.6G .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
308897
$ BH=$(bitcoin-cli -signet getblockhash 308897); echo $BH
00000006ca4d19dc8c08d3456d467eda954122b3d89a4f060a17d788fcdcdfce
$ bitcoin-cli -signet getblockheader 00000006ca4d19dc8c08d3456d467eda954122b3d89a4f060a17d788fcdcdfce
{
"hash": "00000006ca4d19dc8c08d3456d467eda954122b3d89a4f060a17d788fcdcdfce",
"confirmations": 1,
"height": 308897,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "31169d5617ef8cae6ca85f6f4c76072902e0ee428608172a101929544e5fe02a",
"time": 1781491537,
"mediantime": 1781488330,
"nonce": 94650731,
"bits": "1d146a04",
"target": "000000146a040000000000000000000000000000000000000000000000000000",
"difficulty": 0.04898494610796347,
"chainwork": "00000000000000000000000000000000000000000000000000000e34bb71667e",
"nTx": 32,
"previousblockhash": "000000114fae6b2c388f254b462163d80a139375b0544a2ef481e7f420e48ee2"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... ...6 ca4d 19dc
8c.8 d345 6d46 7eda
9541 22b3 d89a 4f.6
.a17 d788 fcdc dfce
$ : 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
308897 sf: ...6 8c.8 4f.6 .a17 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 .
308897 sk: dfce b1
$ : 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 .
308897 ak: 41a5 b1
$ : Following is the jointkode
308897 jk: dfce 41a5 b1
### niceblack moved to the end
$ bitcoin-cli -signet getmempoolinfo
{
"loaded": true,
"size": 46,
"bytes": 23807,
"usage": 207568,
"total_fee": 0.03886267,
"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
188
## Current epoch estimation is -1.36%
## 449 of 2016, i.e. 22%, 1567 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
345787.0763470882
$ bitcoin-cli -signet getnetworkhashps 2016 308447
350573.0694396333
$ bitcoin-cli -signet getnetworkhashps 2016 306431
347971.3775737199
$ bitcoin-cli -signet getblockstats 308897
{
"avgfee": 33785,
"avgfeerate": 101,
"avgtxsize": 411,
"blockhash": "00000006ca4d19dc8c08d3456d467eda954122b3d89a4f060a17d788fcdcdfce",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 308897,
"ins": 45,
"maxfee": 1021960,
"maxfeerate": 6174,
"maxtxsize": 4895,
"medianfee": 14,
"mediantime": 1781488330,
"mediantxsize": 191,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 142,
"outs": 155,
"subsidy": 2500000000,
"swtotal_size": 12615,
"swtotal_weight": 40656,
"swtxs": 30,
"time": 1781491537,
"total_out": 3094298660208,
"total_size": 12757,
"total_weight": 41224,
"totalfee": 1047337,
"txs": 32,
"utxo_increase": 110,
"utxo_size_inc": 10152,
"utxo_increase_actual": 73,
"utxo_size_inc_actual": 6096
}
$ bitcoin-cli -signet getnettotals
{
"totalbytesrecv": 894947350,
"totalbytessent": 25273935867,
"timemillis": 1781491550050,
"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 4 4
out 11 11 2 1
total 15 15
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -signet -addrinfo
{
"addresses_known": {
"ipv4": 1259,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 1259
}
}
### 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
563b8894485c6787
3390912f8f995ef9c100592871f3530d07ea3d3caed49a01cdcbd7e5ba58f358
7d27257fcc87eff6
c72f9ccdc4f2fe6827871bbcdb3d87728dd8135438801b55cc9938b44e002bca
a9e407828463a7f3
8723d91baabc6c128df59d5dcfcad63c2d9c50d4cb7041af38b38cfec837ce18
82b27e77426c9cf3
e234f196dc6cac756b95e1f09ad32ab8e2e096915b467639f696835045e78e06
02ce84759fdbc1f1
d4e964fe2f38bc6dfa17fefb887ded2510568c38b1f09dca89a7bd4bd541ee69
a4dda9c03849be5c
396733a2381b1a5ba696d6b796031f65e341b1784cdb174731fc53c20fca528e
ccac5f3d92a6d821
083741d149c9fa20eff0ffe1582cda192dff5327f4bc78185371d04457e03fcd
ef33457b76d2201b
92892ec21489e49ae656277936b513539a4cc4b7049736231e1280c0f9916b62
d26dc11e642083e6
4888249f39cdb833771fad3380faed358d7541214788464a3e0e3d24f7d520f7
509e8cf1d81d4e1b
ffbb8c187b8d2bfb4277fa0f391270bc73a5b8d78186d4e2ab78c8fdcd010795
2ce2bef7160cebb4
8277b6d6d333cbb1ee2e60bdc85b42e5587a470c1f869fc3362d561c6ffe5efe
88e6da0e0d218c5b
e5ea89415c002cb4fe22ee628b90894c8a587bfc1a5ca17ba71246e3b38be758
0ed5067d8389e35c
f3e326a11fac607536caa6ac7eb62164cb83f0346834752bfea586646648205e
$ niceblack.sh $BH $BC
_____ ___ ___
|___ / / _ \ ( _ )
|_ \| | | |/ _ \
___) | |_| | (_) |
|____/ \___/ \___/
___ ___ _____
( _ )/ _ \___ |
/ _ \ (_) | / /
| (_) \__, |/ /
\___/ /_//_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... ...6 ca4d 19dc .f |
| 1. 8c.8 d345 6d46 7eda 1f |
| 2. 9541 22b3 d89a 4f.6 2f |
| 3. .a17 d788 fcdc dfce 3f |
'=== ==== ==== ==== ==== ==='
jk: dfce 41a5 b1