# on receiving block 941327 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-03-19T19:08:18Z
# as written in the block header
2026-03-19T19:08:10Z

$ uptime   # since last reboot
 19:08:18 up 10:00,  0 users,  load average: 0.83, 0.68, 0.83

$ battery.sh
100%, Power Supply Online

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

$ grep ^MemAvailable /proc/meminfo
MemAvailable:    2376468 kB

$ du -h -d1 .bitcoin/
12.1G	.bitcoin/indexes
4.2G	.bitcoin/signet
2.5M	.bitcoin/wallets
97.7G	.bitcoin/blocks
18.6M	.bitcoin/regtest
10.6G	.bitcoin/chainstate
124.8G	.bitcoin/

$ df -h .
Filesystem                Size      Used Available Use% Mounted on
/dev/sda3               911.4G    433.0G    477.5G  48% /

$ bitcoind -version
Bitcoin Core daemon version v30.2.0 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
941327

$ BH=$(bitcoin-cli getblockhash 941327); echo $BH
00000000000000000000221affd8f2ae75cad5fee3d3b6fa2d4459084cdd2a9f

$ bitcoin-cli getblockheader 00000000000000000000221affd8f2ae75cad5fee3d3b6fa2d4459084cdd2a9f
{
  "hash": "00000000000000000000221affd8f2ae75cad5fee3d3b6fa2d4459084cdd2a9f",
  "confirmations": 1,
  "height": 941327,
  "version": 583008256,
  "versionHex": "22c00000",
  "merkleroot": "a4d7bd97cdd106ae93326641eb598684edf44a31d4442622bb0fd6db476dd996",
  "time": 1773947290,
  "mediantime": 1773942814,
  "nonce": 271736975,
  "bits": "1701f0cc",
  "target": "00000000000000000001f0cc0000000000000000000000000000000000000000",
  "difficulty": 145042165424853.3,
  "chainwork": "000000000000000000000000000000000000000118866e7de8f4f2a8f77fe6f0",
  "nTx": 3580,
  "previousblockhash": "00000000000000000001ba558c340bfa3419f7fef524fde609d36decb624b1aa"
}


$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 221a ffd8 f2ae
75ca d5fe e3d3 b6fa
2d44 59.8 4cdd 2a9f

$ : 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
941327 sf: 59.8 2a9f 

$ : 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 .
941327 sk: 2a9f a5

$ : 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 .
941327 ak: c87f a5

$ : Following is the jointkode
941327 jk: 2a9f c87f a5

### niceblack moved to the end

$ bitcoin-cli getmempoolinfo
{
  "loaded": true,
  "size": 38936,
  "bytes": 32464957,
  "usage": 179666272,
  "total_fee": 0.10684077,
  "maxmempool": 300000000,
  "mempoolminfee": 0.00000100,
  "minrelaytxfee": 0.00000100,
  "incrementalrelayfee": 0.00000100,
  "unbroadcastcount": 0,
  "fullrbf": true,
  "permitbaremultisig": true,
  "maxdatacarriersize": 100000
}

$ gmm.sh
328

## Current epoch estimation is -6.23%
## 1871 of 2016, i.e. 92%, 145 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.732133333097961e+20
$ bitcoin-cli getnetworkhashps 2016 939455
1.037983005536264e+21
$ bitcoin-cli getnetworkhashps 2016 937439
1.03283744073678e+21

$ bitcoin-cli gettxoutsetinfo muhash
{
  "height": 941327,
  "bestblock": "00000000000000000000221affd8f2ae75cad5fee3d3b6fa2d4459084cdd2a9f",
  "txouts": 164982055,
  "bogosize": 12925948531,
  "muhash": "722f0c1e06cb297082152542f75cd9d8fd6a1f3b14c5c1fcc4e4ad2222adabfd",
  "total_amount": 20003919.90565882,
  "total_unspendable_amount": 230.09434118,
  "block_info": {
    "prevout_spent": 15432.67161456,
    "coinbase": 3.18347808,
    "new_outputs_ex_coinbase": 15432.61313647,
    "unspendable": 0.00000001,
    "unspendables": {
      "genesis_block": 0.00000000,
      "bip30": 0.00000000,
      "scripts": 0.00000001,
      "unclaimed_rewards": 0.00000000
    }
  }
}

$ bitcoin-cli getblockstats 941327
{
  "avgfee": 1633,
  "avgfeerate": 5,
  "avgtxsize": 420,
  "blockhash": "00000000000000000000221affd8f2ae75cad5fee3d3b6fa2d4459084cdd2a9f",
  "feerate_percentiles": [
    3,
    4,
    4,
    5,
    7
  ],
  "height": 941327,
  "ins": 7321,
  "maxfee": 72174,
  "maxfeerate": 318,
  "maxtxsize": 29479,
  "medianfee": 825,
  "mediantime": 1773942814,
  "mediantxsize": 223,
  "minfee": 0,
  "minfeerate": 0,
  "mintxsize": 150,
  "outs": 10430,
  "subsidy": 312500000,
  "swtotal_size": 1299163,
  "swtotal_weight": 3161821,
  "swtxs": 3231,
  "time": 1773947290,
  "total_out": 1543261313648,
  "total_size": 1506674,
  "total_weight": 3991865,
  "totalfee": 5847808,
  "txs": 3580,
  "utxo_increase": 3109,
  "utxo_size_inc": 225054,
  "utxo_increase_actual": 3025,
  "utxo_size_inc_actual": 216985
}

$ bitcoin-cli getnettotals
{
  "totalbytesrecv": 181567161,
  "totalbytessent": 358065751,
  "timemillis": 1773947299155,
  "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 v30.2.0 - server 70016/Satoshi:30.2.0/

         ipv4     npr   total   block   libre
in         24       1      25
out        14       0      14       2       4
total      38       1      39

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

Local addresses: n/a


$ bitcoin-cli -addrinfo
{
  "addresses_known": {
    "ipv4": 64292,
    "ipv6": 0,
    "onion": 0,
    "i2p": 0,
    "cjdns": 0,
    "total": 64292
  }
}

$ halving.sh 941327
=====================================
  Bitcoin Block Halving prediction
=====================================

bc=941327
gbt=1231006505
bbt=1773947290

This is average time to mine a block
(1773947290-1231006505)/941327
bts=576.7817222052249587816361

Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 06:24:50 UTC 2028

-------------------------------------
Next palindrome will be 942249
predicted to happen at this time:
Wed Mar 25 22:51:22 UTC 2026

-------------------------------------
Current mining epoch number is 466.
The next fortnight happens in block
941472 and probably around this time:
Fri Mar 20 18:22:03 UTC 2026

### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
     19     "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

5373fd8cafb016e8
	b972b7982e1c85a3ec1176d193821a9fd9f0a582c38cc84860e6374e3707c227
02cb5c606760eb35
	2dc79d44c774726b418021dae17209492b9de7b6f762d5f3e47c554de8d75254
3901238e046485fc
	79859b081551c4ccb110a6484e655b2f1af33acef9529148e49ed7933a352389
158469a4b6772271
	f15efb9bd939250742dedac59bf1cdc17f770d580c843f5c9d3e65aff3a53c6b
169a7c1ce70f690f
	93a14a48ed5f2a6674850c88c6b6a49d29f27d0281b5bb37db52bf469c23c581
0f105d74c07c41e0
	c7678ef188f0a087f4c700c45aaf4d1d6d9fbf7e46be73b294bbd78ba09844db
e91dadb9671bb96c
	b1b397caa4ae3e3f8db89936f93989756937149de29f0b3b93ea37cfe583426b
fb0dde6c60f5b6a1
	4f617f6633dde1ba9e84cb7c24448371c0c861609dc0bec541b6878d235841f7
cf6a7f1db98b90aa
	d9b5b704cff4a61fde891c49fbac1b8b3c5257cbdb65c5dd95ae08e243c55d09
a3ac90fa82d94fae
	b302b4728d9279771e4cc673367aa59f554b25afdd9224229909a8febfac077d
e7bb3d482e5189fd
	e1e6157745128ebffc2468d4439fec2e62ed7372d6853fbd27374872bbcee070
052a081fb8087981
	dee8a2fa37b0334483d030f7776711bbda72e79a9e3ebcff1ca0a4e94627c353
9fe3a7be21b10244
	e71b723a47833a01dab9abb2d9891c6a774f35115ecd1f70c8a4594a742d54c3
952c29ffb60124fb
	9a177004507a7db9a8727459546de737f5e7ab186e969190476fb8bea12d4ce1
de88b0441f88698c
	68dc9ff15d962e31d2d9daed27abf1e82c4cf7a5043e283d05ceaa55b6c99295
4b358538a395d452
	925d13e9bd000fef522f7e7574ba71442a0addd8b4b44a3c7c094f064107de98
7b51432c64e49e52
	666d9ff0e949613636404fb57c1177ac4e87957633f5b8162c8726aa34cebbfd
326965ec2c8dd637
	fe4f8d8c273db83fc67d02a2652b342c82e05cd81af686b210f2ba200890c8b4
b307d30ecfb6cfc7
	52c7861245a1b4d41344acd327b79876a6691c2b9aac272b460339b912976143


$ niceblack.sh $BH $BC
   ___  _  _   _   _________ _____ 
  / _ \| || | / | |___ /___ \___  |
 | (_) | || |_| |   |_ \ __) | / / 
  \__, |__   _| |  ___) / __/ / /  
    /_/   |_| |_| |____/_____/_/   

  ,----- .123 4567 89ab cdef -----,
  |                               |
  | ..   .... .... .... ....   .f |
  | 1.   .... 221a ffd8 f2ae   1f |
  | 2.   75ca d5fe e3d3 b6fa   2f |
  | 3.   2d44 59.8 4cdd 2a9f   3f |
  '===   ==== ==== ==== ====   ==='
   jk:   2a9f c87f a5