# on receiving block 313054 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-07-13T23:43:59Z
# as written in the block header
2026-07-13T23:43:42Z

$ uptime   # since last reboot
 23:43:59 up 17 days, 16:15,  0 users,  load average: 0.60, 0.51, 0.62

$ battery.sh
100%, Power Supply Online

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

$ grep ^MemAvailable /proc/meminfo
MemAvailable:    2170408 kB

$ du -h -d1 .bitcoin/signet
311M	.bitcoin/signet/indexes
21M	.bitcoin/signet/wallets
514M	.bitcoin/signet/blocks
3.9G	.bitcoin/signet/chainstate
4.8G	.bitcoin/signet

$ df -h .
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       912G  435G  476G  48% /

$ bitcoind -version
Bitcoin Core daemon version v31.1.0 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
313054

$ BH=$(bitcoin-cli -signet getblockhash 313054); echo $BH
000000140e153306ca9349799868f878930a8788c8d7afb95e3c2ff14539ee39

$ bitcoin-cli -signet getblockheader 000000140e153306ca9349799868f878930a8788c8d7afb95e3c2ff14539ee39
{
  "hash": "000000140e153306ca9349799868f878930a8788c8d7afb95e3c2ff14539ee39",
  "confirmations": 1,
  "height": 313054,
  "version": 536870912,
  "versionHex": "20000000",
  "merkleroot": "1b30ad71e4d8adf478c0cc0c44cf7934eb37cf34265b6061c035d4b6e7c30c1f",
  "time": 1783986222,
  "mediantime": 1783983318,
  "nonce": 138877771,
  "bits": "1d14ab71",
  "target": "00000014ab710000000000000000000000000000000000000000000000000000",
  "difficulty": 0.04837927401929265,
  "chainwork": "00000000000000000000000000000000000000000000000000000efc3de71136",
  "nTx": 64,
  "previousblockhash": "0000000757dc9d2b09aa25db50a46d853d232c0791159a0799b1bd53b6d66dbd"
}


$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... ..14 .e15 33.6
ca93 4979 9868 f878
93.a 8788 c8d7 afb9
5e3c 2ff1 4539 ee39

$ : 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
313054 sf: ..14 .e15 33.6 93.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 .
313054 sk: ee39 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 .
313054 ak: 77dc b1

$ : Following is the jointkode
313054 jk: ee39 77dc b1

### niceblack moved to the end

$ bitcoin-cli -signet getmempoolinfo
{
  "loaded": true,
  "size": 3,
  "bytes": 426,
  "usage": 9160,
  "total_fee": 0.00001052,
  "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
233

## Current epoch estimation is -1.05%
## 574 of 2016, i.e. 28%, 1442 to go
## Current and previous two in numbers:
$ bitcoin-cli -signet getnetworkhashps 2016
342580.979980015
$ bitcoin-cli -signet getnetworkhashps 2016 312479
346247.1658164694
$ bitcoin-cli -signet getnetworkhashps 2016 310463
337230.1211738132

$ bitcoin-cli -signet getblockstats 313054
{
  "avgfee": 139148,
  "avgfeerate": 400,
  "avgtxsize": 479,
  "blockhash": "000000140e153306ca9349799868f878930a8788c8d7afb95e3c2ff14539ee39",
  "feerate_percentiles": [
    0,
    1,
    1,
    1,
    5
  ],
  "height": 313054,
  "ins": 81,
  "maxfee": 8510524,
  "maxfeerate": 51423,
  "maxtxsize": 10257,
  "medianfee": 286,
  "mediantime": 1783983318,
  "mediantxsize": 193,
  "minfee": 14,
  "minfeerate": 0,
  "mintxsize": 142,
  "outs": 347,
  "subsidy": 2500000000,
  "swtotal_size": 30091,
  "swtotal_weight": 86998,
  "swtxs": 62,
  "time": 1783986222,
  "total_out": 3180605602953,
  "total_size": 30233,
  "total_weight": 87566,
  "totalfee": 8766381,
  "txs": 64,
  "utxo_increase": 266,
  "utxo_size_inc": 22910,
  "utxo_increase_actual": 227,
  "utxo_size_inc_actual": 18012
}

$ bitcoin-cli -signet getnettotals
{
  "totalbytesrecv": 36412264,
  "totalbytessent": 872115861,
  "timemillis": 1783986239951,
  "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 v31.1.0 signet - server 70016/Satoshi:31.1.0/

         ipv4   total   block  manual
in         10      10
out        11      11       2       1
total      21      21

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

Local addresses: n/a


$ bitcoin-cli -signet -addrinfo
{
  "addresses_known": {
    "ipv4": 981,
    "ipv6": 0,
    "onion": 0,
    "i2p": 0,
    "cjdns": 0,
    "total": 981
  }
}

### v2_peerinfo are in v2_peerinfo-signet.txt
$ bitcoin-cli -signet getpeerinfo | grep -w 'v2' | uniq -c
     16     "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
	ba4d455ae8e6348298bfe922b76397b047229e6fd8a093609569ce3666eb3c11
d93d2e33982b129d
	b397aa11603c9726c4fe4e4b7f23e1ecf6ebfa95ffa6108d945cc220459316f9
d3a35fabb60fb123
	89eb9ddf03d29b951cde923a7f28606e7df2ee42f02fba74bd3f62a217ba292c
318db5aec0bb42f2
	3db570b1b3bd6de4944d6fc1a067ae44cb2172e0d3eb2c8af98d37ce15caaa41
9c92af8aca057984
	4a3cd65a70c20953f645fea5e5af6a7cc0f01eae12af3928fa2496641334deb8
9c42b131cbafed94
	361b1dbdd2a2af96786c82688176f8d719caf94e1ee65b74ced5364a255ba209
fc0e313bd3acf04e
	26d120db8fd0556b47e39c428eb74ae8e6f94e19b79ffb445df313ede7cb5308
dbf0245fd5ffa992
	9d2c5d84fa43ed6c39ae376788fee5914c3ef30bc4463ab9252068c338f7280f
2c92bdda6fb6f85d
	f8ed3640b29fbe1222ed56b51cda5d7f15d9d752ddbce9a9c80c55709cfb035a
378235fcca984da1
	f468afa43d65a5c4011f6cdf2d10fb7c7d043962df118678f107a515cc006cdf
89907bdae68ccbe4
	bd5d5214a69700e0638bff3b88d0a35cb96b25dde8a547b629c78d2ec582e4d6
a953229644d7d8fd
	c70dc6823e926bb00062f5b6adeb33395b904d823747e99736f5dbc3c12dcb9d
116bab85103716b2
	c396a642e96331d4ba6ef33496a6e14e01084ff889d7294d9d43ff9637a44ec3
0be51bd680928c9a
	f7bc9247503507203e9bb74700fcf95d6a0e29772eb0f4c21563849485f7cfb7
6b6a9c6cd5ec3e6b
	40d7bab22ed809f27e05a1cf5e7ce14cdf4ecc5e106dc4aa485be922b2f52d7e
bfa6685b31969fcf
	aef0b14d21be44ca39bb0df09b7b99abeca9cef31a3fd9966149172c1c8529e2


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

       ___________ ___  ____ ____
      |_  <  /_  // _ \/ __// / /
     _/_ </ //_ </ // /__ \/_  _/
    /____/_/____/\___/____/ /_/  

  ,----- .123 4567 89ab cdef -----,
  |                               |
  | ..   .... ..14 .e15 33.6   .f |
  | 1.   ca93 4979 9868 f878   1f |
  | 2.   93.a 8788 c8d7 afb9   2f |
  | 3.   5e3c 2ff1 4539 ee39   3f |
  '===   ==== ==== ==== ====   ==='
   jk:   ee39 77dc b1