# on receiving block 941597 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-03-21T17:32:06Z
# as written in the block header
2026-03-21T17:31:35Z
$ uptime # since last reboot
17:32:06 up 2 days, 8:24, 0 users, load average: 1.41, 1.23, 1.44
$ battery.sh
98%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2351588 kB
$ du -h -d1 .bitcoin/
12.1G .bitcoin/indexes
4.3G .bitcoin/signet
2.6M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
124.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.1G 477.3G 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
for further information about the software.
The source code is available from .
This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or
$ BC=$(bitcoin-cli getblockcount); echo $BC
941597
$ BH=$(bitcoin-cli getblockhash 941597); echo $BH
0000000000000000000214004990e140b1ca2fa28da8bd860478cc541dfc88a0
$ bitcoin-cli getblockheader 0000000000000000000214004990e140b1ca2fa28da8bd860478cc541dfc88a0
{
"hash": "0000000000000000000214004990e140b1ca2fa28da8bd860478cc541dfc88a0",
"confirmations": 1,
"height": 941597,
"version": 562364416,
"versionHex": "21850000",
"merkleroot": "b8bb7f7ad28a53852282d6e501e6a110ce6d61bd395af64c460655a4fbe850e5",
"time": 1774114295,
"mediantime": 1774111169,
"nonce": 2988020375,
"bits": "17021a91",
"target": "000000000000000000021a910000000000000000000000000000000000000000",
"difficulty": 133793147307542.8,
"chainwork": "0000000000000000000000000000000000000001190c86fdc575e65518df5968",
"nTx": 3106,
"previousblockhash": "000000000000000000018947e24fb14d9f5b527a1357d0535bdd1d74e6df33cb"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...2 14.. 499. e14.
b1ca 2fa2 8da8 bd86
.478 cc54 1dfc 88a.
$ : 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
941597 sf: ...2 14.. 499. e14. 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 .
941597 sk: 88a. 64
$ : 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 .
941597 ak: 4fe4 64
$ : Following is the jointkode
941597 jk: 88a0 4fe4 64
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 24330,
"bytes": 18130165,
"usage": 97958224,
"total_fee": 0.02089177,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
115
## Current epoch estimation is -0.65%
## 125 of 2016, i.e. 6%, 1891 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.513330457083688e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli getnetworkhashps 2016 939455
1.037983005536264e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 941597,
"bestblock": "0000000000000000000214004990e140b1ca2fa28da8bd860478cc541dfc88a0",
"txouts": 164853966,
"bogosize": 12917305171,
"muhash": "998e55c4b51bfb8dc798b0fe3c8918ce26011dc76d0257e3f64df916bd71763c",
"total_amount": 20004763.65545623,
"total_unspendable_amount": 230.09454377,
"block_info": {
"prevout_spent": 6941.59684825,
"coinbase": 3.14833583,
"new_outputs_ex_coinbase": 6941.57351242,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 941597
{
"avgfee": 751,
"avgfeerate": 2,
"avgtxsize": 544,
"blockhash": "0000000000000000000214004990e140b1ca2fa28da8bd860478cc541dfc88a0",
"feerate_percentiles": [
1,
1,
1,
2,
5
],
"height": 941597,
"ins": 7570,
"maxfee": 42132,
"maxfeerate": 70,
"maxtxsize": 81694,
"medianfee": 331,
"mediantime": 1774111169,
"mediantxsize": 223,
"minfee": 45,
"minfeerate": 0,
"mintxsize": 150,
"outs": 8627,
"subsidy": 312500000,
"swtotal_size": 1537249,
"swtotal_weight": 3382708,
"swtxs": 2895,
"time": 1774114295,
"total_out": 694157351242,
"total_size": 1689516,
"total_weight": 3991776,
"totalfee": 2333583,
"txs": 3106,
"utxo_increase": 1057,
"utxo_size_inc": 96018,
"utxo_increase_actual": 628,
"utxo_size_inc_actual": 54932
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 930248614,
"totalbytessent": 1893876026,
"timemillis": 1774114327210,
"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 19 1 20
out 14 0 14 2 4
total 33 1 34
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64484,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64484
}
}
$ halving.sh 941597
=====================================
Bitcoin Block Halving prediction
=====================================
bc=941597
gbt=1231006505
bbt=1774114295
This is average time to mine a block
(1774114295-1231006505)/941597
bts=576.7936953986733191871690
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 09:54:21 UTC 2028
-------------------------------------
Next palindrome will be 942249
predicted to happen at this time:
Thu Mar 26 01:59:24 UTC 2026
-------------------------------------
Current mining epoch number is 467.
The next fortnight happens in block
943488 and probably around this time:
Fri Apr 3 08:30:11 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
20 "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
0f105d74c07c41e0
c7678ef188f0a087f4c700c45aaf4d1d6d9fbf7e46be73b294bbd78ba09844db
e7bb3d482e5189fd
e1e6157745128ebffc2468d4439fec2e62ed7372d6853fbd27374872bbcee070
052a081fb8087981
dee8a2fa37b0334483d030f7776711bbda72e79a9e3ebcff1ca0a4e94627c353
9fe3a7be21b10244
e71b723a47833a01dab9abb2d9891c6a774f35115ecd1f70c8a4594a742d54c3
952c29ffb60124fb
9a177004507a7db9a8727459546de737f5e7ab186e969190476fb8bea12d4ce1
de88b0441f88698c
68dc9ff15d962e31d2d9daed27abf1e82c4cf7a5043e283d05ceaa55b6c99295
326965ec2c8dd637
fe4f8d8c273db83fc67d02a2652b342c82e05cd81af686b210f2ba200890c8b4
e736537926330260
c09a84c615cb2619106a60d3d363ceba7bc2ef8d86e63401dce35256ef7aaf74
4c9d2964231827bc
68d55bb575805cdb84d0429868146a632edfad9ad20535b8b32102bfe6460f04
b22fbb9c9c315d8a
6c768347ac27a43db942dfe5a99aee9811645940f1ba34438ac61bf64a5083a1
5b6665e2f0e27270
8bbfcd637790bf0d90f917e9ab3537a60e1b0455397f789105404cbe7209f0b7
5ccbdac804fac719
1ce08457e25fb4b916d51671940b22a759d0d24a605c9a92f28ac8cccf419f44
15080af2835ec955
94362850cd8fa4cbcf742f104031389d593e090bcab5ee9ed4253dc2a1936370
e4570e62bad64c83
b8f8a281e54fc3bb815303e1d27046dea8c3ab5298ee7f9d530f8338b2f2f437
c4bddd6460c519b8
1d0d5203aea9d3e5eac11877fe01a708081a22d7eb084d801542edbe0b147590
7ea79b7022f52070
e9ad0cf5dd45aee0cc8481667bfc047d7d66ccc5adb1677b3a13596cf4bfbadd
7099d7189f4527da
a7ab90befb7ecaead5e9829626e2552892cb495714685327d3f7e5f8af746dd6
$ niceblack.sh $BH $BC
___ _ _ _ ____ ___ _____
/ _ \| || | / | | ___|/ _ \___ |
| (_) | || |_| | |___ \ (_) | / /
\__, |__ _| | ___) \__, |/ /
/_/ |_| |_| |____/ /_//_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...2 14.. 499. e14. 1f |
| 2. b1ca 2fa2 8da8 bd86 2f |
| 3. .478 cc54 1dfc 88a. 3f |
'=== ==== ==== ==== ==== ==='
jk: 88a. 4fe4 64