# on receiving block 935458 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-02-07T18:56:32Z
# as written in the block header
2026-02-07T18:55:35Z
$ uptime # since last reboot
18:56:32 up 11 days, 6:22, 0 users, load average: 1.85, 1.78, 2.26
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1102596 kB
$ du -h -d1 .bitcoin/
12.0G .bitcoin/indexes
4.1G .bitcoin/signet
88.9M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.5G .bitcoin/chainstate
124.6G .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 v30.1.0 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
935458
$ BH=$(bitcoin-cli getblockhash 935458); echo $BH
000000000000000000013403730230b875ff8c7e20c51d2782e700c2d908a519
$ bitcoin-cli getblockheader 000000000000000000013403730230b875ff8c7e20c51d2782e700c2d908a519
{
"hash": "000000000000000000013403730230b875ff8c7e20c51d2782e700c2d908a519",
"confirmations": 1,
"height": 935458,
"version": 536952832,
"versionHex": "20014000",
"merkleroot": "e1e29b03a0ae16e1521aed28ff482ea750a8b8cefe587cbdb34b80b6e224da82",
"time": 1770490535,
"mediantime": 1770488021,
"nonce": 1039143932,
"bits": "17023c7e",
"target": "000000000000000000023c7e0000000000000000000000000000000000000000",
"difficulty": 125864590119494.3,
"chainwork": "00000000000000000000000000000000000000010d41b66412fe965f5d19e26a",
"nTx": 2893,
"previousblockhash": "00000000000000000000a606bdf188acbc272513f81802bf9082aa4dd7b2dd81"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 34.3 73.2 3.b8
75ff 8c7e 2.c5 1d27
82e7 ..c2 d9.8 a519
$ : 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
935458 sf: ...1 34.3 73.2 3.b8 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 .
935458 sk: a519 54
$ : 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 .
935458 ak: 4def 54
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 21003,
"bytes": 32263770,
"usage": 155304608,
"total_fee": 0.03914533,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
121
## Current epoch estimation is -0.38%
## 34 of 2016, i.e. 1%, 1982 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.974483710662499e+20
$ bitcoin-cli getnetworkhashps 2016 935423
9.009048549126172e+20
$ bitcoin-cli getnetworkhashps 2016 933407
1.013538089664451e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 935458,
"bestblock": "000000000000000000013403730230b875ff8c7e20c51d2782e700c2d908a519",
"txouts": 164373612,
"bogosize": 12880758184,
"muhash": "d08d3be422dda02116964a4b2d61c413a8bd884cb5a0717ef2dbf74aeffb1de3",
"total_amount": 19985579.28203109,
"total_unspendable_amount": 230.09296891,
"block_info": {
"prevout_spent": 11556.96407109,
"coinbase": 3.15494781,
"new_outputs_ex_coinbase": 11556.93412328,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 935458
{
"avgfee": 1035,
"avgfeerate": 3,
"avgtxsize": 559,
"blockhash": "000000000000000000013403730230b875ff8c7e20c51d2782e700c2d908a519",
"feerate_percentiles": [
1,
1,
2,
2,
4
],
"height": 935458,
"ins": 8305,
"maxfee": 103078,
"maxfeerate": 422,
"maxtxsize": 200704,
"medianfee": 368,
"mediantime": 1770488021,
"mediantxsize": 224,
"minfee": 26,
"minfeerate": 0,
"mintxsize": 150,
"outs": 8043,
"subsidy": 312500000,
"swtotal_size": 1420806,
"swtotal_weight": 3197490,
"swtxs": 2687,
"time": 1770490535,
"total_out": 1155693412328,
"total_size": 1619385,
"total_weight": 3991806,
"totalfee": 2994781,
"txs": 2893,
"utxo_increase": -262,
"utxo_size_inc": -17009,
"utxo_increase_actual": -353,
"utxo_size_inc_actual": -25896
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 4175384188,
"totalbytessent": 9439418753,
"timemillis": 1770490593494,
"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 24 2 26
out 14 0 14 2 4
total 38 2 40
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 63700,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63700
}
}
$ halving.sh 935458
=====================================
Bitcoin Block Halving prediction
=====================================
bc=935458
gbt=1231006505
bbt=1770490535
This is average time to mine a block
(1770490535-1231006505)/935458
bts=576.7051575750513918835566
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Mon Mar 13 08:04:57 UTC 2028
-------------------------------------
Next palindrome will be 935539
predicted to happen at this time:
Sun Feb 8 07:54:08 UTC 2026
-------------------------------------
Current mining epoch number is 464.
The next fortnight happens in block
937440 and probably around this time:
Sat Feb 21 00:26:04 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
21 "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
40cf36e1edfc7838
e376216b12ba582e9c0f6ae60ea7a5593bea1ed0a65223a360a75ebd68630b84
6b3557f067c56786
5a96c96f1266fcda9be7a62b98d4f7c7a4673bc1fc0cee9a8dc99e5a2538f4e5
8f14501130c5b9bc
90367aa212ecac6afde3777157031fa0c48726579def93af3c1b7c189c3570fe
f73bb8ddcadca052
e4c407bec40f0adf61cdb89fecf4d3566de5f67b54dcdfa671396b56bfcd8f9e
d5cd45ef894e8649
452ea15c98d8f6590baaf778faf0ebc2f67436ce84d68b04915e83f53b4b545f
952c29ffb60124fb
b2ee8ea5aa183779a52079f37290d9d96e12cc2e543493afeccc8ebf97ade10f
93f43076b3bb3924
a694785c15abf7e29f38d8566d7e4e3ad266b81c8d4a44c4f01e328015105c7e
cf32c35c6f181edb
78870af729d4f456786411cde69f9d5adcea97bb48b807b4ef76712174e87f09
7b9a1ca6d304d08a
71d0823cdf3f7d8dc0bbd06b7532f1ca35a70cd6986ca7f57454bcca52a74ccd
19fb7307a8fff42b
cda1e965ce117c1162be4002c4388f6021d1e034289078af1cb21ad595e75ef3
2f483f8248b737c5
379a2a95f02cb6621993de828b9698c14d81ca49beeee22f30ca512f51e3ada9
17e84e9ce43ba533
4c801843ed99c47283becb71f72df1acf4a6f67101a1ee0dbd3847c4343ccd9f
7fdb3c929b8b1bac
7b3f9e69bf2f34d065626bd0a006fa39ebfb231845425a818a75d99fa55e6850
b96173b624016672
fea139b20c2d59f576f5c106fd21787ba48455a7707c71efc4000a0b0b8bca4c
081890bf46c558f4
4d2416ebb488f6b695c7f52a4371a476dc682bc7bac3b46e196c4bb041e6cd50
f90b034e6ea40345
7b578209f090eebca5087180179e84186e5594497fda01bde1dd6c3e0ee3298f
06528e104e8056ff
8ceca5ede8656e641c3192b7d6036329956962220c933c9a08d2226ccf94d64b
ea9dd9aed40e6bcc
c06f3695cd5109b23daf7ab1e4b693290079dae767468c8ad85b618ec98a4d4c
75e5af19c18b20e3
2ab8be9579772cfc2573ac57a6b6e867a439df415370587b22fa47520639dc84
89a9ae4640c5e35b
d65f5069a44699b9924ba85dd01f88083e5653198031b8e921e5810eedd27175
fc393f641a7c7393
b2b6c306d2467f1bdfbd726dead5d9c9b40d6bf557a153d8a531376663032381
$ niceblack.sh $BH $BC
__ __ __
/ / / /__ ____/ /__
/ _ \/ / _ \/ __/ '_/
/_.__/_/\___/\__/_/\_\
___ ____ ____ ____ ____ ___
/ _ \|_ // __// / // __/( _ )
\_, //_