# on receiving block 973525 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-10-28T08:20:12Z
# as written in the block header
2026-10-28T08:20:13Z

$ uptime   # since last reboot
 08:20:12 up 69 days, 22:36,  0 users,  load average: 0.55, 0.60, 0.79

$ battery.sh
75%, Power Supply Online

$ uname -smnr
Linux singer 6.18.44-0-lts x86_64

$ grep ^MemAvailable /proc/meminfo
MemAvailable:    1461568 kB

$ du -h -d1 .bitcoin/
12.7G	.bitcoin/indexes
5.1G	.bitcoin/signet
87.9M	.bitcoin/wallets
97.7G	.bitcoin/blocks
18.6M	.bitcoin/regtest
10.6G	.bitcoin/chainstate
8.0K	.bitcoin/fees
126.4G	.bitcoin/

$ df -h .
Filesystem                Size      Used Available Use% Mounted on
/dev/sda3               911.4G    453.5G    456.9G  50% /

$ bitcoind -version
Bitcoin Core daemon version v32.0 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 getblockcount); echo $BC
973525

$ BH=$(bitcoin-cli getblockhash 973525); echo $BH
00000000000000000001f77fe0b85c4d96c0ed1f3652a71a3ab5e9cfa65e5be1

$ bitcoin-cli getblockheader 00000000000000000001f77fe0b85c4d96c0ed1f3652a71a3ab5e9cfa65e5be1
{
  "hash": "00000000000000000001f77fe0b85c4d96c0ed1f3652a71a3ab5e9cfa65e5be1",
  "confirmations": 1,
  "height": 973525,
  "version": 541949952,
  "versionHex": "204d8000",
  "merkleroot": "47015713db8a6e23af4f14350ac72838969583a8cae2b02ea50d7801ebb3cff4",
  "time": 1793175613,
  "mediantime": 1793174142,
  "nonce": 3271267933,
  "bits": "17020093",
  "target": "0000000000000000000200930000000000000000000000000000000000000000",
  "difficulty": 140577680051919.6,
  "chainwork": "0000000000000000000000000000000000000001539aebfeaf71d3560ce7471c",
  "nTx": 1392,
  "previousblockhash": "00000000000000000001e8bd569e6b88f7a2a8af8d4e67c079c307ab234406ae"
}


$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 f77f e.b8 5c4d
96c. ed1f 3652 a71a
3ab5 e9cf a65e 5be1

$ : 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
973525 sf: 96c. 5be1 

$ : 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 .
973525 sk: 5be1 94

$ : 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 .
973525 ak: 8fd9 94

$ : Following is the jointkode
973525 jk: 5be1 8fd9 94

### niceblack moved to the end

$ bitcoin-cli getmempoolinfo
{
  "loaded": true,
  "size": 48982,
  "bytes": 21762883,
  "usage": 123616896,
  "total_fee": 0.02560231,
  "maxmempool": 300000000,
  "mempoolminfee": 0.00000100,
  "minrelaytxfee": 0.00000100,
  "incrementalrelayfee": 0.00000100,
  "unbroadcastcount": 0,
  "permitbaremultisig": true,
  "maxdatacarriersize": 100000,
  "limitclustercount": 64,
  "limitclustersize": 101000,
  "optimal": true
}

$ gmm.sh
117

## Current epoch estimation is +5.74%
## 1813 of 2016, i.e. 89%, 203 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.064081016515765e+21
$ bitcoin-cli getnetworkhashps 2016 971711
1.006235771946967e+21
$ bitcoin-cli getnetworkhashps 2016 969695
9.499394793503835e+20

$ bitcoin-cli gettxoutsetinfo muhash
{
  "height": 973525,
  "bestblock": "00000000000000000001f77fe0b85c4d96c0ed1f3652a71a3ab5e9cfa65e5be1",
  "txouts": 164479655,
  "bogosize": 12881231353,
  "muhash": "547f3a1ee2cc9ec180d8198abb80659a439ddd746facb3ab570f7fa88a12a73d",
  "total_amount": 20104538.61740050,
  "total_unspendable_amount": 230.13259950,
  "block_info": {
    "prevout_spent": 5439.75417165,
    "coinbase": 3.13941986,
    "new_outputs_ex_coinbase": 5439.73975179,
    "unspendable": 0.00000000,
    "unspendables": {
      "genesis_block": 0.00000000,
      "bip30": 0.00000000,
      "scripts": 0.00000000,
      "unclaimed_rewards": 0.00000000
    }
  }
}

$ bitcoin-cli getblockstats 973525
{
  "avgfee": 1036,
  "avgfeerate": 1,
  "avgtxsize": 2195,
  "blockhash": "00000000000000000001f77fe0b85c4d96c0ed1f3652a71a3ab5e9cfa65e5be1",
  "feerate_percentiles": [
    0,
    0,
    0,
    1,
    2
  ],
  "height": 973525,
  "ins": 3397,
  "maxfee": 271141,
  "maxfeerate": 201,
  "maxtxsize": 346240,
  "medianfee": 225,
  "mediantime": 1793174142,
  "mediantxsize": 222,
  "minfee": 16,
  "minfeerate": 0,
  "mintxsize": 150,
  "outs": 3320,
  "subsidy": 312500000,
  "swtotal_size": 2990190,
  "swtotal_weight": 3736269,
  "swtxs": 1317,
  "time": 1793175613,
  "total_out": 543973975179,
  "total_size": 3054568,
  "total_weight": 3993781,
  "totalfee": 1441986,
  "txs": 1392,
  "utxo_increase": -77,
  "utxo_size_inc": -4993,
  "utxo_increase_actual": -429,
  "utxo_size_inc_actual": -30941
}

$ bitcoin-cli getnettotals
{
  "totalbytesrecv": 2300470285,
  "totalbytessent": 1689163916,
  "timemillis": 1793175612462,
  "uploadtarget": {
    "timeframe": 86400,
    "target": 0,
    "target_reached": false,
    "serve_historical_blocks": true,
    "bytes_left_in_cycle": 0,
    "time_left_in_cycle": 0
  }
}

$ bitcoin-cli -netinfo
Bitcoin Core client v32.0 - server 70017/Satoshi:32.0.0/

         ipv4     npr   total   block
in          0       1       1
out        10       0      10       2
total      10       1      11

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

Local addresses: n/a


$ bitcoin-cli -addrinfo
{
  "addresses_known": {
    "ipv4": 79076,
    "ipv6": 299,
    "onion": 1755,
    "i2p": 6,
    "cjdns": 0,
    "total": 81136
  }
}

$ halving.sh 973525
=====================================
  Bitcoin Block Halving prediction
=====================================

bc=973525
gbt=1231006505
bbt=1793175613

This is average time to mine a block
(1793175613-1231006505)/973525
bts=577.4566965854019307137148

Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 22 11:16:53 UTC 2028

-------------------------------------
Next palindrome will be 974479
predicted to happen at this time:
Tue Nov  3 17:21:46 UTC 2026

-------------------------------------
Current mining epoch number is 482.
The next fortnight happens in block
973728 and probably around this time:
Thu Oct 29 16:53:56 UTC 2026

### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli 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

051ddd7a2a9d08d2
	41bfcdabac70c24ee275ccbee70da9800709f355254dc6048e2f2a64ec6a2a48
f990bac59778a501
	ba2293fcd5ae262a4203446de1c9b2bc562d66eeb74dc862cb0f0bf784e0c14c
8b116947a83863ed
	560b28877fb99d591005782f431b02f43f002deff3bde31b4d42e73913dec96b
f57345ad1d6e9bd7
	cb960dfeb740d4209ed1d818c9583ab9b7d01f2c735a5296a7d93a3b08407ee8
dd80dd02be57dbd3
	43e124ea8d562a77a7226765a9a321f0f442f2dba18120c36e59481f9274685e
bb7f5aee66a098f4
	4001897ae444c75b4868d04715f61b2a4e80a9d5d846aebf419601263b1d4410
ab8d095f9dc02dc5
	704026be7891b99f22cbfb47d0354515b003c2267dcd9964d40f5f97cd72384d
e92dd2aadd071252
	f1c32acac09837d082e3d28d958429011df61f786e1dbd64e57ace4b975c00a1
4707b0ac0151c698
	112f20b3fcdca4d9260890b752d81c2916ef0853eb92ac4bc8baef310641e6dd


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

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

  ,----- .123 4567 89ab cdef -----,
  |                               |
  | ..   .... .... .... ....   .f |
  | 1.   ...1 f77f e.b8 5c4d   1f |
  | 2.   96c. ed1f 3652 a71a   2f |
  | 3.   3ab5 e9cf a65e 5be1   3f |
  '===   ==== ==== ==== ====   ==='
   jk:   5be1 8fd9 94