# on receiving block 288084 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-01-22T01:45:41Z
# as written in the block header
2026-01-22T01:45:20Z

$ uptime   # since last reboot
 01:45:41 up 161 days, 11:36,  0 users,  load average: 0.96, 2.00, 1.93

$ battery.sh
42%, Power Supply Online

$ uname -smnr
Linux singer 6.12.40-0-lts x86_64

$ grep ^MemAvailable /proc/meminfo
MemAvailable:    1924428 kB

$ du -h -d1 .bitcoin/signet
263M	.bitcoin/signet/indexes
19M	.bitcoin/signet/wallets
517M	.bitcoin/signet/blocks
3.2G	.bitcoin/signet/chainstate
4.1G	.bitcoin/signet

$ df -h .
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       912G  833G   78G  92% /

$ bitcoind -version
Bitcoin Core daemon version v30.1.0 bitcoind
Copyright (C) 2009-2025 The Bitcoin Core developers

Please contribute if you find Bitcoin Core useful. Visit
<https://bitcoincore.org/> for further information about the software.
The source code is available from <https://github.com/bitcoin/bitcoin>.

This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or <https://opensource.org/license/MIT>

$ BC=$(bitcoin-cli -signet getblockcount); echo $BC
288084

$ BH=$(bitcoin-cli -signet getblockhash 288084); echo $BH
0000000b72ebf178f80776fecb73d5369d686a308a9b01b5028ca9dc02adb2d2

$ bitcoin-cli -signet getblockheader 0000000b72ebf178f80776fecb73d5369d686a308a9b01b5028ca9dc02adb2d2
{
  "hash": "0000000b72ebf178f80776fecb73d5369d686a308a9b01b5028ca9dc02adb2d2",
  "confirmations": 1,
  "height": 288084,
  "version": 536870912,
  "versionHex": "20000000",
  "merkleroot": "cca809c75a60fd816b9d1ab18e7d59e39c7750ba3fd4147d0e9fd8695f5d7d11",
  "time": 1769046320,
  "mediantime": 1769043061,
  "nonce": 166185440,
  "bits": "1d155816",
  "target": "0000001558160000000000000000000000000000000000000000000000000000",
  "difficulty": 0.04685067121530791,
  "chainwork": "00000000000000000000000000000000000000000000000000000a5636db294f",
  "nTx": 30,
  "previousblockhash": "000000004e9a0c6e628ad6f96fb88b075d9f2bdec20f8cd3d4487c186d2dd9e3"
}


$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... ...b 72eb f178
f8.7 76fe cb73 d536
9d68 6a3. 8a9b .1b5
.28c a9dc .2ad b2d2

$ : 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
288084 sf: ...b f8.7 6a3. .1b5 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 .
288084 sk: b2d2 91

$ : 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 .
288084 ak: 747d 91

### niceblack moved to the end

$ bitcoin-cli -signet getmempoolinfo
{
  "loaded": true,
  "size": 0,
  "bytes": 0,
  "usage": 64,
  "total_fee": 0.00000000,
  "maxmempool": 100000000,
  "mempoolminfee": 0.00000100,
  "minrelaytxfee": 0.00000100,
  "incrementalrelayfee": 0.00000100,
  "unbroadcastcount": 0,
  "fullrbf": true,
  "permitbaremultisig": true,
  "maxdatacarriersize": 100000
}

$ gmm.sh
179

## Current epoch estimation is -1.18%
## 1812 of 2016, i.e. 89%, 204 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
331398.3816010738
$ bitcoin-cli -signet getnetworkhashps 2016 286271
335362.2796681721
$ bitcoin-cli -signet getnetworkhashps 2016 284255
355553.4870464702

$ bitcoin-cli -signet getblockstats 288084
{
  "avgfee": 4369,
  "avgfeerate": 10,
  "avgtxsize": 488,
  "blockhash": "0000000b72ebf178f80776fecb73d5369d686a308a9b01b5028ca9dc02adb2d2",
  "feerate_percentiles": [
    2,
    2,
    6,
    6,
    6
  ],
  "height": 288084,
  "ins": 31,
  "maxfee": 49790,
  "maxfeerate": 200,
  "maxtxsize": 7913,
  "medianfee": 345,
  "mediantime": 1769043061,
  "mediantxsize": 188,
  "minfee": 244,
  "minfeerate": 1,
  "mintxsize": 188,
  "outs": 282,
  "subsidy": 2500000000,
  "swtotal_size": 14156,
  "swtotal_weight": 48107,
  "swtxs": 29,
  "time": 1769046320,
  "total_out": 2694742420268,
  "total_size": 14156,
  "total_weight": 48107,
  "totalfee": 126725,
  "txs": 30,
  "utxo_increase": 251,
  "utxo_size_inc": 18921,
  "utxo_increase_actual": 224,
  "utxo_size_inc_actual": 16992
}

$ bitcoin-cli -signet getnettotals
{
  "totalbytesrecv": 275161536,
  "totalbytessent": 17217430275,
  "timemillis": 1769046342333,
  "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 v30.1.0 signet - server 70016/Satoshi:30.1.0/

         ipv4   total   block  manual
in         11      11
out        11      11       2       1
total      22      22

Local services: witness, compact filters, network limited, p2p v2, libre

Local addresses: n/a


$ bitcoin-cli -signet -addrinfo
{
  "addresses_known": {
    "ipv4": 1945,
    "ipv6": 0,
    "onion": 0,
    "i2p": 0,
    "cjdns": 0,
    "total": 1945
  }
}

### v2_peerinfo are in v2_peerinfo-signet.txt
$ bitcoin-cli -signet getpeerinfo | grep -w 'v2' | uniq -c
     17     "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

f17ef791f09a6e12
	1eb8d5c885d76ec61abdcbab8afdb95cf662b83dff800d091c1d1aa9c9ec4444
9550b66c9c9a91e5
	80572506374a72edbbd8eb4c060f2ed610f580590fe77e0fd9928d76f3e12517
42d6b7498898cae5
	b5d07aa319512b491e13f8dbc1998fa9621cbddb56fe787970a1439302c5bb03
989773dc541b27e7
	6a63816364e2ce97a9b72bc4825a4689372091f1439c3ec017266e9979213edf
f790807c60875c4a
	27536aa05fbc13edafcfd28e7f64474f362e32c2f5ff26299762e15923698a1e
cbc2e2b9678ec897
	8ff9282db73d452e366650c997f0c8f9346a8214f5afd2bc515676e113a19167
82b27e77426c9cf3
	17cebe79272e3fa04b260ed855cbcf8c5ea72c51d808b8c0e962432b53343780
163f3786f147ce8f
	619aa5857606ae0d09775097b19b73aa49a72f4f4c4431081fe675f8d3da24bc
6bcadcfa0fef73ba
	a42dbcd5362458b9a6bd7ef2f044f546e78688b05494349a79404561c12532c2
7aa3370f69571e4a
	042fe942587d1941e926bcd63275b412df22eae2ef31ee988bd5235e1a1318ee
eb495b419f257575
	b1b004378819ea7d9b598f123833873592e58c24c0feefe12c94b0802ec344c7
f078819b9a545799
	48460c3be9abbdfa21fbc4fd63494c00b99016d4da077f64c1195e4a3018b989
aeee207e611fb6ba
	9b2a235db7b94dca1d371588ff70dc938a8954bd177d3443f47888ee301cf3ea
bc89691ff6abf108
	2dea395c9760cb93f9cd755809d18fb5dc71fd61a9ee5c91524c7c61f450bf18
ccd185b2cf3a1865
	8a5e797394f8e5f057624cb57ba8cf7ee78888e120a6917e02677159cf0fd70b
d60799a826b406fa
	1aa27b24795243573f43dabc78e0e2f117676f3be2134d382f7dc34d08fe6b44
e9629ffd34bbaec5
	871673e3ff60d5664d941f563a65229457ad6bd301103264b95fa5178430e9af


$ niceblack.sh $BH $BC
       _    _             _   
      | |  | |           | |  
      | |  | |  __   __  | |  
      |/ \_|/  /  \_/    |/_) 
       \_/ |__/\__/ \___/| \_/

      __  __  __   __   __      
     /  )/  \/  \ /  \ /  \|  | 
       / \__/\__/|    |\__/|__|_
      /  /  \/  \|    |/  \   | 
     /___\__/\__/ \__/ \__/   | 

  ,----- .123 4567 89ab cdef -----,
  |                               |
  | ..   .... ...b 72eb f178   .f |
  | 1.   f8.7 76fe cb73 d536   1f |
  | 2.   9d68 6a3. 8a9b .1b5   2f |
  | 3.   .28c a9dc .2ad b2d2   3f |
  '===   ==== ==== ==== ====   ==='
   ak:   747d 91
  ................ ............|.||