# on receiving block 931957 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-01-12T09:15:17Z
# as written in the block header
2026-01-12T09:15:00Z
$ uptime # since last reboot
09:15:17 up 151 days, 19:06, 0 users, load average: 9.09, 5.10, 2.81
$ battery.sh
42%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1780952 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.9G .bitcoin/indexes
3.9G .bitcoin/signet
41.9M .bitcoin/wallets
97.8G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 832.4G 78.0G 91% /
$ 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
931957
$ BH=$(bitcoin-cli getblockhash 931957); echo $BH
000000000000000000009434446d71e88c764ded3880592b5cab36f1f0b650a4
$ bitcoin-cli getblockheader 000000000000000000009434446d71e88c764ded3880592b5cab36f1f0b650a4
{
"hash": "000000000000000000009434446d71e88c764ded3880592b5cab36f1f0b650a4",
"confirmations": 1,
"height": 931957,
"version": 543162368,
"versionHex": "20600000",
"merkleroot": "d20541208d774e6d3e4669c2cb9d5d1f0e494407f9b35e028fdeb60200a1a0a6",
"time": 1768209300,
"mediantime": 1768205065,
"nonce": 219716238,
"bits": "1701ebf2",
"target": "00000000000000000001ebf20000000000000000000000000000000000000000",
"difficulty": 146472570619930.8,
"chainwork": "00000000000000000000000000000000000000010648d34a380e9d125bbc73f6",
"nTx": 3723,
"previousblockhash": "00000000000000000001d675719348503470a31c76d9357445096449004c5871"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 9434 446d 71e8
8c76 4ded 388. 592b
5cab 36f1 f.b6 5.a4
$ : 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
931957 sf: 388. f.b6 5.a4
$ : 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 .
931957 sk: 5.a4 85
$ : 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 .
931957 ak: cbc9 85
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 36770,
"bytes": 38171636,
"usage": 205791888,
"total_fee": 0.05418313,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
141
## Current epoch estimation is -1.45%
## 565 of 2016, i.e. 28%, 1451 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.032795972358457e+21
$ bitcoin-cli getnetworkhashps 2016 931391
1.048049552337457e+21
$ bitcoin-cli getnetworkhashps 2016 929375
1.06126766979058e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 931957,
"bestblock": "000000000000000000009434446d71e88c764ded3880592b5cab36f1f0b650a4",
"txouts": 165669760,
"bogosize": 12977535975,
"muhash": "ee9bbea8efe21edfbb38f439932052c72f66b4b9d41da6e9bffa4466495e9057",
"total_amount": 19974638.65829581,
"total_unspendable_amount": 230.09170419,
"block_info": {
"prevout_spent": 620.58938733,
"coinbase": 3.13319683,
"new_outputs_ex_coinbase": 620.58119049,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 931957
{
"avgfee": 220,
"avgfeerate": 0,
"avgtxsize": 475,
"blockhash": "000000000000000000009434446d71e88c764ded3880592b5cab36f1f0b650a4",
"feerate_percentiles": [
0,
0,
0,
1,
1
],
"height": 931957,
"ins": 7383,
"maxfee": 127171,
"maxfeerate": 40,
"maxtxsize": 147188,
"medianfee": 49,
"mediantime": 1768205065,
"mediantxsize": 365,
"minfee": 28,
"minfeerate": 0,
"mintxsize": 150,
"outs": 10216,
"subsidy": 312500000,
"swtotal_size": 1707861,
"swtotal_weight": 3746229,
"swtxs": 3641,
"time": 1768209300,
"total_out": 62058119050,
"total_size": 1768618,
"total_weight": 3989257,
"totalfee": 819683,
"txs": 3723,
"utxo_increase": 2833,
"utxo_size_inc": 202696,
"utxo_increase_actual": 369,
"utxo_size_inc_actual": 35259
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3567556553,
"totalbytessent": 8044473955,
"timemillis": 1768209318011,
"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 14 1 15
out 14 0 14 2 4
total 28 1 29
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64405,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64405
}
}
$ halving.sh 931957
=====================================
Bitcoin Block Halving prediction
=====================================
bc=931957
gbt=1231006505
bbt=1768209300
This is average time to mine a block
(1768209300-1231006505)/931957
bts=576.4238248933964835325197
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 9 22:01:37 UTC 2028
-------------------------------------
Next palindrome will be 932239
predicted to happen at this time:
Wed Jan 14 06:24:11 UTC 2026
-------------------------------------
Current mining epoch number is 462.
The next fortnight happens in block
933408 and probably around this time:
Thu Jan 22 01:34:50 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
6d2e13426c4517fc
21fc06918fb7e45c34fedc8832a19e9be03f390d616fb2fe8cf4095557344b18
556084eb30646ceb
cad5c2f3b1bc66475ba7bbd78ff08bff7e5ef91de1471482c40c9376c767d1df
f6581c7d78ba6632
15391940f8c4105123e0f721794b052c158755d21fc2d58c16b733f04d220c2c
cfff60869e28db00
a79733e6af3257f46d057396fa4c6a9a0e505c5f85a4455a01e54e729b34aac2
e763831ccaf47cc2
d40dcaf85bfbdab208f5285253a2edfdb67b19521fea5c040799eab9f0ceef53
1a4b7ab242d95458
fe2afd765791fcc86f447d998de7a530a34a0f61799d38424dfc94d1335cd8cd
878f0449b031c94a
2df04f5507ce7f3dffaa3174730989bc19cde16386f1871a58288866d39f31e4
738807dc5e875286
f9b06baf26cb6ba16d17c9dc24c94df2f05bcfc746f5ee71f2fc059d1288d0c0
978c78a9f2e05914
d96ef4ad34e96ad6fc687a9948d153c8bb2bbbb2351eea37ff2a6d02280b535f
c018dcad0d639387
efb9afd1af921f07817091f8bad06485ecac0a4ed0b00eb7c8d6c1460fd8972c
491a718ed92e5320
2b76a634f43a4d3b8efac8b80713b2cb96e78b2fdc9d7f65a841ec36d3e92537
e7bb3d482e5189fd
633123407af8d851a61b6478cf85717a5bf833531adfb911664daecad43eae30
7b9a1ca6d304d08a
7dae20f750ff5beb92a4112926d4734c4976fcf1eefb1355502c30a96c3e2182
2f483f8248b737c5
afca4a69343b969ea9616d36a6e84657ba5ea156b89afb52b3b34ec0ac8fbb2a
5edd4df6e5dd001e
7e9a9185b2e9991f2400a929449926168e9c6b00d6775adc351bdcaf43b7652a
$ niceblack.sh $BH $BC
__ __ __
/ / / /__ ____/ /__
/ _ \/ / _ \/ __/ '_/
/_.__/_/\___/\__/_/\_\
___ __________ ________
/ _ \|_ < / _ \/ __/_ /
\_, //_ /\_, /__ \ / /
/___/____/_//___/____//_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 9434 446d 71e8 1f |
| 2. 8c76 4ded 388. 592b 2f |
| 3. 5cab 36f1 f.b6 5.a4 3f |
'=== ==== ==== ==== ==== ==='
ak: cbc9 85
................ |..|.|....||.|..