# on receiving block 945971 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-20T22:21:53Z
# as written in the block header
2026-04-20T22:21:48Z
$ uptime # since last reboot
22:21:53 up 32 days, 13:14, 0 users, load average: 1.19, 1.24, 1.15
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1903180 kB
$ du -h -d1 .bitcoin/
12.2G .bitcoin/indexes
4.3G .bitcoin/signet
2.7M .bitcoin/wallets
97.8G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.1G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 434.4G 476.1G 48% /
$ bitcoind -version
Bitcoin Core daemon version v31.0.0rc4 bitcoind
Copyright (C) 2009-2026 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
945971
$ BH=$(bitcoin-cli getblockhash 945971); echo $BH
000000000000000000013bbdf33b54522bd73b30beaf5aa2d0d53a5c0c4d41e5
$ bitcoin-cli getblockheader 000000000000000000013bbdf33b54522bd73b30beaf5aa2d0d53a5c0c4d41e5
{
"hash": "000000000000000000013bbdf33b54522bd73b30beaf5aa2d0d53a5c0c4d41e5",
"confirmations": 1,
"height": 945971,
"version": 890986496,
"versionHex": "351b6000",
"merkleroot": "a625c783995f4c10bbff9943064e57d7017129ceac44fa6817400d31ed63a35b",
"time": 1776723708,
"mediantime": 1776719343,
"nonce": 1055965228,
"bits": "17021369",
"target": "0000000000000000000213690000000000000000000000000000000000000000",
"difficulty": 135594876535256.6,
"chainwork": "00000000000000000000000000000000000000012153b2e95c4d350a20ca2738",
"nTx": 3593,
"previousblockhash": "000000000000000000002fc55b1780b87c23bcbdb1af3b7cd4329f23f71d27d5"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 3bbd f33b 5452
2bd7 3b3. beaf 5aa2
d.d5 3a5c .c4d 41e5
$ : 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
945971 sf: ...1 3b3. d.d5 .c4d 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 .
945971 sk: 41e5 84
$ : 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 .
945971 ak: cf1e 84
$ : Following is the jointkode
945971 jk: 41e5 cf1e 84
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 60599,
"bytes": 32245125,
"usage": 172781096,
"total_fee": 0.04388337,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
136
## Current epoch estimation is +1.26%
## 467 of 2016, i.e. 23%, 1549 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.826987379651533e+20
$ bitcoin-cli getnetworkhashps 2016 945503
9.704094538460986e+20
$ bitcoin-cli getnetworkhashps 2016 943487
9.942372658458654e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 945971,
"bestblock": "000000000000000000013bbdf33b54522bd73b30beaf5aa2d0d53a5c0c4d41e5",
"txouts": 165381406,
"bogosize": 12956227967,
"muhash": "1c4f77e5d9508613a353f6e223f292dce8dcee33e8ebdc4334f6c60530001fd5",
"total_amount": 20018432.40355404,
"total_unspendable_amount": 230.09644596,
"block_info": {
"prevout_spent": 24814.77290585,
"coinbase": 3.16479694,
"new_outputs_ex_coinbase": 24814.73310891,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 945971
{
"avgfee": 1107,
"avgfeerate": 3,
"avgtxsize": 432,
"blockhash": "000000000000000000013bbdf33b54522bd73b30beaf5aa2d0d53a5c0c4d41e5",
"feerate_percentiles": [
2,
2,
3,
4,
6
],
"height": 945971,
"ins": 7360,
"maxfee": 125845,
"maxfeerate": 263,
"maxtxsize": 46829,
"medianfee": 504,
"mediantime": 1776719343,
"mediantxsize": 223,
"minfee": 111,
"minfeerate": 0,
"mintxsize": 150,
"outs": 10375,
"subsidy": 312500000,
"swtotal_size": 1417592,
"swtotal_weight": 3442595,
"swtxs": 3232,
"time": 1776723708,
"total_out": 2481473310891,
"total_size": 1554936,
"total_weight": 3991971,
"totalfee": 3979694,
"txs": 3593,
"utxo_increase": 3015,
"utxo_size_inc": 222316,
"utxo_increase_actual": 2904,
"utxo_size_inc_actual": 210445
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3746211772,
"totalbytessent": 8773721675,
"timemillis": 1776723714087,
"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 v31.0.0rc4 - server 70016/Satoshi:31.0.0/
ipv4 npr total block
in 16 1 17
out 10 0 10 2
total 26 1 27
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 66547,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 66547
}
}
$ halving.sh 945971
=====================================
Bitcoin Block Halving prediction
=====================================
bc=945971
gbt=1231006505
bbt=1776723708
This is average time to mine a block
(1776723708-1231006505)/945971
bts=576.8851541060411936082674
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 15 12:34:53 UTC 2028
-------------------------------------
Next palindrome will be 946649
predicted to happen at this time:
Sat Apr 25 11:00:36 UTC 2026
-------------------------------------
Current mining epoch number is 469.
The next fortnight happens in block
947520 and probably around this time:
Fri May 1 06:35:03 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
12 "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
00de322b63e69ca9
56887195a3e4781d68b17844e07d8fa19ab9c4237c44428405f2f3d5858c69f8
75e390c4b40859a6
231b87e24cd7464aa90a5831325c4a03d092d05896d86569e3831000c3da60c5
35f90c0fb4d27c37
3b97e77c842bee40c1b21522f0ae142bc4bad3e7ea3cbc084ff7ac8597552fae
e811f290e545b557
91b438fd292baa7899673e95f0b574fece959ef344935aa5a4c44e712aba081b
bd5c28ca73d648d3
c6b973db3d90e160e11c217163d545535e65a914a23d65cffd276dcda577f5da
23ebc31ec6577c25
e584eb4cdcf75a16c81a049b7a5b54f3bd5d3084b050a547d4d3f50f96011a4a
22401fefde290001
b8e611394d0fa07cb0754e789ba6b32e790a38349da1a323320d6c176b258034
cc5eafef7fabe466
87812ccd4bac7c5031c309bdd9241cb85f228fb9f04857930dcf8dec6b384e44
931b3aabc6c094ad
45a760e7bad06d5a76d02ee04b174b91bb9d96f172bfe60d53149be713315081
bfb936a9574324b2
c61e5549a354e2ad1172c2ea2baa8ef7d9099c2b2fb39a9c4e6eb95aa33c52b0
72f329164d5b2f0f
c7036297fff700abab8b432193af1f87153adcfc265aaa02f64a5973370d7b1a
1e4519b4a161c63e
4a3334128c9e3943fd8beaa9b683aa903554e57a81d42517c6484d6e9ef4438a
$ niceblack.sh $BH $BC
___ _ _ ____ ___ _____ _
/ _ \| || || ___| / _ \___ / |
| (_) | || ||___ \ | (_) | / /| |
\__, |__ _|__) | \__, |/ / | |
/_/ |_||____/ /_//_/ |_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 3bbd f33b 5452 1f |
| 2. 2bd7 3b3. beaf 5aa2 2f |
| 3. d.d5 3a5c .c4d 41e5 3f |
'=== ==== ==== ==== ==== ==='
jk: 41e5 cf1e 84