# on receiving block 923755 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-11-15T15:39:39Z
# as written in the block header
2025-11-15T15:39:20Z
$ uptime # since last reboot
15:39:39 up 94 days, 1:30, 0 users, load average: 1.04, 0.99, 1.29
$ battery.sh
56%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2096764 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.8G .bitcoin/indexes
3.6G .bitcoin/signet
41.8M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.7G .bitcoin/chainstate
125.5G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 832.8G 77.6G 91% /
$ bitcoind -version
Bitcoin Core daemon version libre-relay-v30.0-1
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
923755
$ BH=$(bitcoin-cli getblockhash 923755); echo $BH
0000000000000000000183938524cd38133812ad351676e3385413b2122c93d8
$ bitcoin-cli getblockheader 0000000000000000000183938524cd38133812ad351676e3385413b2122c93d8
{
"hash": "0000000000000000000183938524cd38133812ad351676e3385413b2122c93d8",
"confirmations": 1,
"height": 923755,
"version": 536928256,
"versionHex": "2000e000",
"merkleroot": "9ab2552c2e8cd15e38585ae798c7693a566cab978744cd8963b500bd4bcab653",
"time": 1763221160,
"mediantime": 1763218007,
"nonce": 77917969,
"bits": "1701d936",
"target": "00000000000000000001d9360000000000000000000000000000000000000000",
"difficulty": 152271405447597.4,
"chainwork": "0000000000000000000000000000000000000000f54e89c02c38fa8091b5c8d4",
"nTx": 2101,
"previousblockhash": "00000000000000000000f685be52fd8e78d41ed2828087113910117aa8a06620"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 8393 8524 cd38
1338 12ad 3516 76e3
3854 13b2 122c 93d8
$ : 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
923755 sf: ...1 93d8
$ : 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 .
923755 sk: 93d8 b4
$ : 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 .
923755 ak: 23fc b4
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 63628,
"bytes": 37513295,
"usage": 213626672,
"total_fee": 0.06704495,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
178
## Current epoch estimation is +0.31%
## 427 of 2016, i.e. 21%, 1589 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.093204942688925e+21
$ bitcoin-cli getnetworkhashps 2016 923327
1.089721987248796e+21
$ bitcoin-cli getnetworkhashps 2016 921311
1.11405143592317e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 923755,
"bestblock": "0000000000000000000183938524cd38133812ad351676e3385413b2122c93d8",
"txouts": 166709551,
"bogosize": 13052621698,
"muhash": "a699e1969801af7c5743b0a1a8f12b2c097c7d39379f72b0a69cc1e3f9963c4e",
"total_amount": 19949007.41346358,
"total_unspendable_amount": 230.08653642,
"block_info": {
"prevout_spent": 2478.99561895,
"coinbase": 3.13739869,
"new_outputs_ex_coinbase": 2478.98322026,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 923755
{
"avgfee": 590,
"avgfeerate": 1,
"avgtxsize": 820,
"blockhash": "0000000000000000000183938524cd38133812ad351676e3385413b2122c93d8",
"feerate_percentiles": [
1,
1,
1,
1,
1
],
"height": 923755,
"ins": 10121,
"maxfee": 45604,
"maxfeerate": 44,
"maxtxsize": 99197,
"medianfee": 173,
"mediantime": 1763218007,
"mediantxsize": 225,
"minfee": 69,
"minfeerate": 0,
"mintxsize": 150,
"outs": 4668,
"subsidy": 312500000,
"swtotal_size": 1492264,
"swtotal_weight": 3067468,
"swtxs": 1897,
"time": 1763221160,
"total_out": 247898322026,
"total_size": 1723363,
"total_weight": 3991864,
"totalfee": 1239869,
"txs": 2101,
"utxo_increase": -5453,
"utxo_size_inc": -397686,
"utxo_increase_actual": -5753,
"utxo_size_inc_actual": -417297
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 7971844807,
"totalbytessent": 20784518598,
"timemillis": 1763221179670,
"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 libre-relay-v30.0-1 - server 70016/Satoshi:30.0.0/
ipv4 npr total block libre
in 23 2 25
out 14 0 14 2 4
total 37 2 39
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 68745,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 68745
}
}
$ halving.sh 923755
=====================================
Bitcoin Block Halving prediction
=====================================
bc=923755
gbt=1231006505
bbt=1763221160
This is average time to mine a block
(1763221160-1231006505)/923755
bts=576.1420277649076162969442
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Mon Mar 6 11:50:10 UTC 2028
-------------------------------------
Next palindrome will be 924429
predicted to happen at this time:
Thu Nov 20 03:31:19 UTC 2025
-------------------------------------
Current mining epoch number is 458.
The next fortnight happens in block
925344 and probably around this time:
Wed Nov 26 05:57:29 UTC 2025
### 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
aadd5da680e7089e
23317222ae516873a503abcf485422e9d6b1e7bf865825debd584c5332d58189
e46f044eb556eaa8
3153d585d605443be77e4a2f3140e8f40b9ef722bd81e375f19e3c4232a2de6a
30674743a4c25f0c
52abc914702fcb49bd42252e2d32b989ae9b1170f57f1b024fdab5f6144d1709
0807a9526523077f
43784e22c1815d54d8665985de80f1d089786283937256eee7171a8a43d67c69
a95260aa2f5b98d2
d1c839c2aaaf7ecd9e8779c219b3f493ab8409b217525e71137e20e7ae1dd7cf
8d07df53fe6ce9b5
fa828f79d983e7f2fe97bcf269d8be6dc8354db9f5fd3ece6d8175542119e0c9
2a46cc7bd1ee8668
1183eee22296675b504b9d7c8070b80753226566acdf3e45d109325af7f41bf6
7a7d42b998be6fba
7b29a6a9f9bd74585645670079d4be65101e14f0be23dc309fc1ffd2c629465e
952c29ffb60124fb
4187d16c0fd2709b1bb3c543fbcf477fd9b70aae0bb549b17c7b24267ac264e7
5edd4df6e5dd001e
161edcfbb64560a004db34571b751eff3894ebba58b2401bea88ac2c81d5e28d
2f483f8248b737c5
ff78aad30dc72c750786839baea4cbeea3e56ba2f0c5f10ed87b432dc715ba7e
3f5d21b063816822
375c92c2a27b58e0452a288a894ef7745afd3899a44a4e2650a621d34e115c2a
7b9a1ca6d304d08a
c444102c35dec1f14fac27a3f0bed8095700aef290ec64a93b1d7d97b698f3f2
bdd54ae21deda947
163eb4ad0497cfb5e66291de4dab9468eb3f3f02f7df5b2f14daf54485b68aa7
d3b920e73b83a6a3
dbf04ba190b5e90af11513d0df3f45232089d282bee6df58577ed265f2b4ae9f
$ niceblack.sh $BH $BC
_ _ _
| |__| |___ __| |__
| '_ \ / _ \/ _| / /
|_.__/_\___/\__|_\_\
___ ___ ________ ___ ___
/ _ \_ )__ /__ | __| __|
\_, // / |_ \ / /|__ \__ \
/_//___|___//_/ |___/___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 8393 8524 cd38 1f |
| 2. 1338 12ad 3516 76e3 2f |
| 3. 3854 13b2 122c 93d8 3f |
'=== ==== ==== ==== ==== ==='
ak: 23fc b4