# on receiving block 935870 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-02-10T07:02:04Z
# as written in the block header
2026-02-10T07:01:34Z
$ uptime # since last reboot
07:02:03 up 13 days, 18:27, 0 users, load average: 3.00, 2.61, 2.71
$ battery.sh
95%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 943192 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
10.7G .bitcoin/chainstate
124.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.3G 477.1G 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
935870
$ BH=$(bitcoin-cli getblockhash 935870); echo $BH
00000000000000000000cb5248720611d0181af111000ca1a64f58431387299c
$ bitcoin-cli getblockheader 00000000000000000000cb5248720611d0181af111000ca1a64f58431387299c
{
"hash": "00000000000000000000cb5248720611d0181af111000ca1a64f58431387299c",
"confirmations": 1,
"height": 935870,
"version": 614342656,
"versionHex": "249e2000",
"merkleroot": "07f559e0d3d640aba031b5aafaec3526ce22b08972332fceb5cc64e8ce6e90cf",
"time": 1770706894,
"mediantime": 1770705381,
"nonce": 3836345946,
"bits": "17023c7e",
"target": "000000000000000000023c7e0000000000000000000000000000000000000000",
"difficulty": 125864590119494.3,
"chainwork": "00000000000000000000000000000000000000010df9f20f526b3ee286070572",
"nTx": 675,
"previousblockhash": "00000000000000000001f0b3020642bbc0b722a99f4af02c8869c9cf1d240169"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... cb52 4872 .611
d.18 1af1 11.. .ca1
a64f 5843 1387 299c
$ : 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
935870 sf: .611 d.18 11.. .ca1 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 .
935870 sk: 299c 75
$ : 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 .
935870 ak: 966e 75
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 21046,
"bytes": 37509927,
"usage": 174978976,
"total_fee": 0.04761162,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
126
## Current epoch estimation is +4.55%
## 446 of 2016, i.e. 22%, 1570 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.419203216938154e+20
$ bitcoin-cli getnetworkhashps 2016 935423
9.009048549126172e+20
$ bitcoin-cli getnetworkhashps 2016 933407
1.013538089664451e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 935870,
"bestblock": "00000000000000000000cb5248720611d0181af111000ca1a64f58431387299c",
"txouts": 164361796,
"bogosize": 12879320768,
"muhash": "cd13f91fa146f7a5804b44ecb8bb101b0dbc35506d8711aacfd59c6ecc9da123",
"total_amount": 19986866.78195482,
"total_unspendable_amount": 230.09304518,
"block_info": {
"prevout_spent": 4422.23890928,
"coinbase": 3.13091810,
"new_outputs_ex_coinbase": 4422.23298877,
"unspendable": 0.00000241,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000241,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 935870
{
"avgfee": 878,
"avgfeerate": 2,
"avgtxsize": 540,
"blockhash": "00000000000000000000cb5248720611d0181af111000ca1a64f58431387299c",
"feerate_percentiles": [
1,
1,
1,
2,
4
],
"height": 935870,
"ins": 1856,
"maxfee": 25095,
"maxfeerate": 72,
"maxtxsize": 17972,
"medianfee": 308,
"mediantime": 1770705381,
"mediantxsize": 224,
"minfee": 89,
"minfeerate": 1,
"mintxsize": 139,
"outs": 1735,
"subsidy": 312500000,
"swtotal_size": 323192,
"swtotal_weight": 728993,
"swtxs": 617,
"time": 1770706894,
"total_out": 442223299118,
"total_size": 364057,
"total_weight": 892453,
"totalfee": 591810,
"txs": 675,
"utxo_increase": -121,
"utxo_size_inc": -7347,
"utxo_increase_actual": -157,
"utxo_size_inc_actual": -11082
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 5396038087,
"totalbytessent": 12821465384,
"timemillis": 1770706924801,
"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 26 2 28
out 14 0 14 2 4
total 40 2 42
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 63151,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63151
}
}
$ halving.sh 935870
=====================================
Bitcoin Block Halving prediction
=====================================
bc=935870
gbt=1231006505
bbt=1770706894
This is average time to mine a block
(1770706894-1231006505)/935870
bts=576.6824583730022620638955
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Mon Mar 13 01:27:42 UTC 2028
-------------------------------------
Next palindrome will be 936639
predicted to happen at this time:
Sun Feb 15 10:12:42 UTC 2026
-------------------------------------
Current mining epoch number is 464.
The next fortnight happens in block
937440 and probably around this time:
Fri Feb 20 18:31:25 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
22 "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
8f14501130c5b9bc
90367aa212ecac6afde3777157031fa0c48726579def93af3c1b7c189c3570fe
f73bb8ddcadca052
e4c407bec40f0adf61cdb89fecf4d3566de5f67b54dcdfa671396b56bfcd8f9e
d5cd45ef894e8649
452ea15c98d8f6590baaf778faf0ebc2f67436ce84d68b04915e83f53b4b545f
952c29ffb60124fb
b2ee8ea5aa183779a52079f37290d9d96e12cc2e543493afeccc8ebf97ade10f
93f43076b3bb3924
a694785c15abf7e29f38d8566d7e4e3ad266b81c8d4a44c4f01e328015105c7e
cf32c35c6f181edb
78870af729d4f456786411cde69f9d5adcea97bb48b807b4ef76712174e87f09
7b9a1ca6d304d08a
71d0823cdf3f7d8dc0bbd06b7532f1ca35a70cd6986ca7f57454bcca52a74ccd
19fb7307a8fff42b
cda1e965ce117c1162be4002c4388f6021d1e034289078af1cb21ad595e75ef3
17e84e9ce43ba533
4c801843ed99c47283becb71f72df1acf4a6f67101a1ee0dbd3847c4343ccd9f
7fdb3c929b8b1bac
7b3f9e69bf2f34d065626bd0a006fa39ebfb231845425a818a75d99fa55e6850
b96173b624016672
fea139b20c2d59f576f5c106fd21787ba48455a7707c71efc4000a0b0b8bca4c
081890bf46c558f4
4d2416ebb488f6b695c7f52a4371a476dc682bc7bac3b46e196c4bb041e6cd50
06528e104e8056ff
8ceca5ede8656e641c3192b7d6036329956962220c933c9a08d2226ccf94d64b
ea9dd9aed40e6bcc
c06f3695cd5109b23daf7ab1e4b693290079dae767468c8ad85b618ec98a4d4c
75e5af19c18b20e3
2ab8be9579772cfc2573ac57a6b6e867a439df415370587b22fa47520639dc84
fc393f641a7c7393
b2b6c306d2467f1bdfbd726dead5d9c9b40d6bf557a153d8a531376663032381
dcb92951c8398258
4adcdc60f29541d2224d003666d62994f0d105fd0a360370fa422c1353722a00
e7bb3d482e5189fd
ce85a6ff8eead1891cc0cb68e43f3e67973a555980ba57bd6cdcfcf0b34932d1
bffd8702b0876778
7cfea6ffb9341df46718b4c5d5bd6732a405857b8a9944026fa5a46d6105fc3e
bf37d7c9b144c0b7
ffa2806d441414c80a74fd9734774ddc562d7fab9f0109fa1873f3fbbb3ef7d1
684f776b15ab1f26
d4f1b8a0e1c891e7e27c98c7d56f882b76adfe660ead6e317b3979890eb7415b
$ niceblack.sh $BH $BC
| | |
_ \ | _ \ _| | /
_.__/_|\___/\__|_\_\
_ \__ / __| _ )__ / \
\_ / _ \__ \ _ \ /( |
_/ ___/___/\___/ _/\__/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... cb52 4872 .611 1f |
| 2. d.18 1af1 11.. .ca1 2f |
| 3. a64f 5843 1387 299c 3f |
'=== ==== ==== ==== ==== ==='
ak: 966e 75