# on receiving block 934159 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-01-29T02:06:57Z
# as written in the block header
2026-01-29T02:06:50Z
$ uptime # since last reboot
02:06:57 up 1 day, 13:32, 0 users, load average: 3.67, 4.76, 2.96
$ battery.sh
97%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1624232 kB
$ du -h -d1 .bitcoin/
12.0G .bitcoin/indexes
4.1G .bitcoin/signet
86.7M .bitcoin/wallets
97.6G .bitcoin/blocks
18.6M .bitcoin/regtest
10.5G .bitcoin/chainstate
124.4G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 834.4G 76.0G 92% /
$ bitcoind -version
Bitcoin Core daemon version v30.1.0 bitcoind
Copyright (C) 2009-2025 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
934159
$ BH=$(bitcoin-cli getblockhash 934159); echo $BH
00000000000000000001cf3c977b6d24c66ec9af245cadd000b4d1c45d9e7234
$ bitcoin-cli getblockheader 00000000000000000001cf3c977b6d24c66ec9af245cadd000b4d1c45d9e7234
{
"hash": "00000000000000000001cf3c977b6d24c66ec9af245cadd000b4d1c45d9e7234",
"confirmations": 1,
"height": 934159,
"version": 537649152,
"versionHex": "200be000",
"merkleroot": "dc0de8608e3c59b0be690ce7a7d1d3b01d3c19ecdd087b94128a6b3a4831ea03",
"time": 1769652410,
"mediantime": 1769650526,
"nonce": 914119582,
"bits": "1701fca1",
"target": "00000000000000000001fca10000000000000000000000000000000000000000",
"difficulty": 141668107417558.2,
"chainwork": "00000000000000000000000000000000000000010ab5df714b449d39ca5c3230",
"nTx": 5492,
"previousblockhash": "0000000000000000000157ba82e620d9bbe2e097bc7d0a6fee169cafc60e4290"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 cf3c 977b 6d24
c66e c9af 245c add.
..b4 d1c4 5d9e 7234
$ : 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
934159 sf: ...1 add. ..b4 7234
$ : 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 .
934159 sk: 7234 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 .
934159 ak: 4df5 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 25892,
"bytes": 14182148,
"usage": 78746752,
"total_fee": 0.01532406,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
107
## Current epoch estimation is -6.87%
## 751 of 2016, i.e. 37%, 1265 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.438172163956441e+20
$ bitcoin-cli getnetworkhashps 2016 933407
1.013538089664451e+21
$ bitcoin-cli getnetworkhashps 2016 931391
1.048049552337457e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 934159,
"bestblock": "00000000000000000001cf3c977b6d24c66ec9af245cadd000b4d1c45d9e7234",
"txouts": 164064474,
"bogosize": 12857857151,
"muhash": "550b1818fb3465a2fc6a56ea791adfed861ed00ddd3ad0b6e80c4fbe53eb6b06",
"total_amount": 19981519.90719586,
"total_unspendable_amount": 230.09280414,
"block_info": {
"prevout_spent": 471.27548543,
"coinbase": 3.12843912,
"new_outputs_ex_coinbase": 471.27204631,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 934159
{
"avgfee": 62,
"avgfeerate": 0,
"avgtxsize": 320,
"blockhash": "00000000000000000001cf3c977b6d24c66ec9af245cadd000b4d1c45d9e7234",
"feerate_percentiles": [
0,
0,
0,
0,
1
],
"height": 934159,
"ins": 9110,
"maxfee": 28060,
"maxfeerate": 40,
"maxtxsize": 148524,
"medianfee": 14,
"mediantime": 1769650526,
"mediantxsize": 207,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 150,
"outs": 11694,
"subsidy": 312500000,
"swtotal_size": 1750888,
"swtotal_weight": 3966589,
"swtxs": 5468,
"time": 1769652410,
"total_out": 47127204631,
"total_size": 1757156,
"total_weight": 3991661,
"totalfee": 343912,
"txs": 5492,
"utxo_increase": 2584,
"utxo_size_inc": 128881,
"utxo_increase_actual": -2524,
"utxo_size_inc_actual": -180359
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 464989973,
"totalbytessent": 1248331824,
"timemillis": 1769652418137,
"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 v30.1.0 - server 70016/Satoshi:30.1.0/
ipv4 npr total block libre
in 22 2 24
out 14 0 14 2 4
total 36 2 38
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 66048,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 66048
}
}
$ halving.sh 934159
=====================================
Bitcoin Block Halving prediction
=====================================
bc=934159
gbt=1231006505
bbt=1769652410
This is average time to mine a block
(1769652410-1231006505)/934159
bts=576.6099008735120322000513
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Sun Mar 12 04:17:57 UTC 2028
-------------------------------------
Next palindrome will be 934439
predicted to happen at this time:
Fri Jan 30 22:57:40 UTC 2026
-------------------------------------
Current mining epoch number is 463.
The next fortnight happens in block
935424 and probably around this time:
Fri Feb 6 12:43:41 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli 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
4c6529e2f29fb8a9
dd96cb272a0a8c2dc75ae487cbec1496b340d2dc3dd22420dc067035e747f20b
40cf36e1edfc7838
e376216b12ba582e9c0f6ae60ea7a5593bea1ed0a65223a360a75ebd68630b84
f2e6f2b3a446eee9
3ba4d3b2bd3d57425d663e5471c688ebcf52dd95afc87df56e9bef40a70c76b6
6b3557f067c56786
5a96c96f1266fcda9be7a62b98d4f7c7a4673bc1fc0cee9a8dc99e5a2538f4e5
8f14501130c5b9bc
90367aa212ecac6afde3777157031fa0c48726579def93af3c1b7c189c3570fe
f73bb8ddcadca052
e4c407bec40f0adf61cdb89fecf4d3566de5f67b54dcdfa671396b56bfcd8f9e
a83654eab4f63bbc
8ec88b53d3238a2aa2a4772587054654ddc18cf31d8a66e6c1d98e7c17e49f84
c9fd7d6dc1088007
89a2379d09110ee7bae82ea25b9ba7fbbb91a73d120a8776b2e2a6fa56941665
7b9a1ca6d304d08a
2981bc5dd728e3de39fe16975c1118a4db3f2270c4caa0e6d71578adca9766e5
d5cd45ef894e8649
452ea15c98d8f6590baaf778faf0ebc2f67436ce84d68b04915e83f53b4b545f
952c29ffb60124fb
b2ee8ea5aa183779a52079f37290d9d96e12cc2e543493afeccc8ebf97ade10f
93f43076b3bb3924
a694785c15abf7e29f38d8566d7e4e3ad266b81c8d4a44c4f01e328015105c7e
49e827dead263da3
ec918ba57960cf9f5d56d09fcb5778ccb40802684fbea8398959673040f3b1b2
aae562ac376a6921
15e2c557f3fa0dcb6825cde559d1aabaa81e1936987647ef656c4ce2a0ed0e76
e13787feabde9666
dcab1aa079b2c2746e95ba58ddbd4171d8f4defc56ae14fb4e7f75d7061cb6b6
$ niceblack.sh $BH $BC
_ _ _
| |__| |___ __| |__
| '_ \ / _ \/ _| / /
|_.__/_\___/\__|_\_\
___ _____ _ _ ___ ___
/ _ \__ / | |/ | __/ _ \
\_, /|_ \_ _| |__ \_, /
/_/|___/ |_||_|___//_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 cf3c 977b 6d24 1f |
| 2. c66e c9af 245c add. 2f |
| 3. ..b4 d1c4 5d9e 7234 3f |
'=== ==== ==== ==== ==== ==='
ak: 4df5 94