# on receiving block 305689 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-23T17:59:55Z
# as written in the block header
2026-05-23T17:59:34Z

$ uptime   # since last reboot
 17:59:55 up 65 days,  8:52,  0 users,  load average: 2.00, 1.76, 1.83

$ battery.sh
163%, Power Supply Online

$ uname -smnr
Linux singer 6.18.2-0-lts x86_64

$ grep ^MemAvailable /proc/meminfo
MemAvailable:    1588404 kB

$ du -h -d1 .bitcoin/signet
297M	.bitcoin/signet/indexes
21M	.bitcoin/signet/wallets
523M	.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
<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
305689

$ BH=$(bitcoin-cli -signet getblockhash 305689); echo $BH
0000000dfae0fa269b44cd59e90e9d0a4d89acc0c0acddf34beb98b5a1d2ec6c

$ bitcoin-cli -signet getblockheader 0000000dfae0fa269b44cd59e90e9d0a4d89acc0c0acddf34beb98b5a1d2ec6c
{
  "hash": "0000000dfae0fa269b44cd59e90e9d0a4d89acc0c0acddf34beb98b5a1d2ec6c",
  "confirmations": 1,
  "height": 305689,
  "version": 536870912,
  "versionHex": "20000000",
  "merkleroot": "8a3b9a05e6b9387542e0d5fd09e170779dfbce004cde9ff220b770c833c67276",
  "time": 1779559174,
  "mediantime": 1779555683,
  "nonce": 167664482,
  "bits": "1d15102a",
  "target": "00000015102a0000000000000000000000000000000000000000000000000000",
  "difficulty": 0.04747557581386184,
  "chainwork": "00000000000000000000000000000000000000000000000000000d996fbde268",
  "nTx": 63,
  "previousblockhash": "0000001346d982bebdfd5df1d6572599414a995bf98edbeaa9b82a9c731ba9c1"
}


$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... ...d fae. fa26
9b44 cd59 e9.e 9d.a
4d89 acc. c.ac ddf3
4beb 98b5 a1d2 ec6c

$ : 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
305689 sf: ...d fae. e9.e 9d.a 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 .
305689 sk: ec6c 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 .
305689 ak: 4.24 91

$ : Following is the jointkode
305689 jk: ec6c 4.24 91

### niceblack moved to the end

$ bitcoin-cli -signet getmempoolinfo
{
  "loaded": true,
  "size": 2,
  "bytes": 354,
  "usage": 40032,
  "total_fee": 0.00000692,
  "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
227

## Current epoch estimation is +1.54%
## 1273 of 2016, i.e. 63%, 743 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
344807.2778954533
$ bitcoin-cli -signet getnetworkhashps 2016 304415
339567.6604445974
$ bitcoin-cli -signet getnetworkhashps 2016 302399
342474.190435588

$ bitcoin-cli -signet getblockstats 305689
{
  "avgfee": 46329,
  "avgfeerate": 110,
  "avgtxsize": 493,
  "blockhash": "0000000dfae0fa269b44cd59e90e9d0a4d89acc0c0acddf34beb98b5a1d2ec6c",
  "feerate_percentiles": [
    0,
    0,
    0,
    0,
    1
  ],
  "height": 305689,
  "ins": 83,
  "maxfee": 2849108,
  "maxfeerate": 17215,
  "maxtxsize": 15279,
  "medianfee": 154,
  "mediantime": 1779555683,
  "mediantxsize": 205,
  "minfee": 14,
  "minfeerate": 0,
  "mintxsize": 142,
  "outs": 573,
  "subsidy": 2500000000,
  "swtotal_size": 30424,
  "swtotal_weight": 103345,
  "swtxs": 61,
  "time": 1779559174,
  "total_out": 3009113532830,
  "total_size": 30566,
  "total_weight": 103913,
  "totalfee": 2872446,
  "txs": 63,
  "utxo_increase": 490,
  "utxo_size_inc": 37248,
  "utxo_increase_actual": 453,
  "utxo_size_inc_actual": 33193
}

$ bitcoin-cli -signet getnettotals
{
  "totalbytesrecv": 421591260,
  "totalbytessent": 11060584080,
  "timemillis": 1779559196491,
  "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": 1101,
    "ipv6": 0,
    "onion": 0,
    "i2p": 0,
    "cjdns": 0,
    "total": 1101
  }
}

### v2_peerinfo are in v2_peerinfo-signet.txt
$ bitcoin-cli -signet getpeerinfo | grep -w 'v2' | uniq -c
     15     "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
	29a6f4ac6aa43f08af35547819922f5e967641a9d65a94b494c82ac26a695a07
39235a0b1d5527e7
	95922c68c22a20fed80df23cd85406c5a305e424c854cbb07950ad67f3190702
a9e407828463a7f3
	fda7c5b3505bee36b3a9c66e49ccadaa96d5e2dfc7c3d2f019a54ee4c3bdeba5
c2df4db43254cb32
	dca64f72c53dc18778ffb7cdd3dcad00519b68f53dab670373ab683c43de0ae1
6314f8c19fd3f1fc
	a787db2d728fe91dc7a58a44c1654f94bcf49fdb219f80d6ffc69a6cfc3c3274
58cf5f4588d41478
	7bf7615f24ef55828c98274187a3a29a26c06cc14ac18b693737ad59a0fb05d8
1be57ab10ba0682c
	2e7a5cfacffd322fde6ba6dd6a7460bb55d99cda26883b8be36df302a0034eeb
82fab7a90cabd40c
	cc447826dbdd34a76324acf6c0f6abcce95a3ef3bd9a410520828303709b8651
1b223199413e44c3
	e69d68281ac73a3c888eabde7e492e2916778acace73bc294cc774c447872155
563b8894485c6787
	7727fcfa14ca9b0be638f5d0a50fcaea847be7ac54f5cddd9c794609712e57e4
84ec145dd309a0af
	636daac2724b598123f00ba233883e8beb44a26e5904638f23487a0bcd5c749a
f3367d6752fbb126
	63a888478434373d773c200615820142394bf0c3fc6d813769ecf82601b9c87d
75f1784cd2bb262b
	83a07dbd13b9c37488b3638b314a230ff42709339cc15244a5b6bf29ae72fc2f
f0f694d1aa80196f
	aa07305ac61937391c69072ef209bbe04f49e987989c0963742a74196240dc63
1d128de3cea8789e
	658dee99dc67cddafc192c7e4f5f5054d67e17eed091cc55506bd224d9a5186e


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

     ____ __  ___   __  ___ ___ 
    |__ //  \| __| / / ( _ ) _ \
     |_ \ () |__ \/ _ \/ _ \_, /
    |___/\__/|___/\___/\___//_/ 

  ,----- .123 4567 89ab cdef -----,
  |                               |
  | ..   .... ...d fae. fa26   .f |
  | 1.   9b44 cd59 e9.e 9d.a   1f |
  | 2.   4d89 acc. c.ac ddf3   2f |
  | 3.   4beb 98b5 a1d2 ec6c   3f |
  '===   ==== ==== ==== ====   ==='
   jk:   ec6c 4.24 91