# on receiving block 943540 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-03T19:26:43Z
# as written in the block header
2026-04-03T19:26:26Z
$ uptime # since last reboot
19:26:43 up 15 days, 10:19, 0 users, load average: 2.13, 1.16, 0.91
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2020520 kB
$ du -h -d1 .bitcoin/
12.1G .bitcoin/indexes
4.3G .bitcoin/signet
2.7M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
124.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.2G 477.2G 48% /
$ bitcoind -version
Bitcoin Core daemon version v31.0rc2 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
943540
$ BH=$(bitcoin-cli getblockhash 943540); echo $BH
000000000000000000011e5a1337184aa493019aaa93be2c090576104e5e0f63
$ bitcoin-cli getblockheader 000000000000000000011e5a1337184aa493019aaa93be2c090576104e5e0f63
{
"hash": "000000000000000000011e5a1337184aa493019aaa93be2c090576104e5e0f63",
"confirmations": 1,
"height": 943540,
"version": 703848448,
"versionHex": "29f3e000",
"merkleroot": "c8ead636d66817ce48e096347ed71cbd4831941e7c480480c31fa803652fee6d",
"time": 1775244386,
"mediantime": 1775241591,
"nonce": 3919393053,
"bits": "17020684",
"target": "0000000000000000000206840000000000000000000000000000000000000000",
"difficulty": 138966872071213.2,
"chainwork": "00000000000000000000000000000000000000011ca914502d6e1796555dc388",
"nTx": 4450,
"previousblockhash": "000000000000000000003eb3a1b9a353c0d75d62b77917e44fa39ff1c933929a"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 1e5a 1337 184a
a493 .19a aa93 be2c
.9.5 761. 4e5e .f63
$ : 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
943540 sf: ...1 .19a .9.5 761. 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 .
943540 sk: .f63 74
$ : 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 .
943540 ak: 9ab8 74
$ : Following is the jointkode
943540 jk: 0f63 9ab8 74
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 15464,
"bytes": 19088925,
"usage": 98933416,
"total_fee": 0.02210617,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 2,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
115
## Current epoch estimation is -0.04%
## 52 of 2016, i.e. 2%, 1964 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.937946844348926e+20
$ bitcoin-cli getnetworkhashps 2016 943487
9.942372658458654e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 943540,
"bestblock": "000000000000000000011e5a1337184aa493019aaa93be2c090576104e5e0f63",
"txouts": 165184092,
"bogosize": 12942980721,
"muhash": "e9ba3b7b5f3b34d3477a2eb9324c76146506f8b82e6e86729b482852cbbee11d",
"total_amount": 20010835.53021463,
"total_unspendable_amount": 230.09478537,
"block_info": {
"prevout_spent": 2421.21157143,
"coinbase": 3.14266441,
"new_outputs_ex_coinbase": 2421.19390702,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 943540
{
"avgfee": 397,
"avgfeerate": 1,
"avgtxsize": 407,
"blockhash": "000000000000000000011e5a1337184aa493019aaa93be2c090576104e5e0f63",
"feerate_percentiles": [
0,
0,
1,
2,
4
],
"height": 943540,
"ins": 6920,
"maxfee": 59288,
"maxfeerate": 140,
"maxtxsize": 107305,
"medianfee": 113,
"mediantime": 1775241591,
"mediantxsize": 222,
"minfee": 15,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9779,
"subsidy": 312500000,
"swtotal_size": 1694920,
"swtotal_weight": 3526552,
"swtxs": 4263,
"time": 1775244386,
"total_out": 242119390702,
"total_size": 1811154,
"total_weight": 3991488,
"totalfee": 1766441,
"txs": 4450,
"utxo_increase": 2859,
"utxo_size_inc": 207705,
"utxo_increase_actual": 738,
"utxo_size_inc_actual": 54236
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2873972209,
"totalbytessent": 5914786952,
"timemillis": 1775244404080,
"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 v31.0rc2 - server 70016/Satoshi:31.0.0/
ipv4 npr total block
in 15 1 16
out 10 0 10 2
total 25 1 26
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62116,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62116
}
}
$ halving.sh 943540
=====================================
Bitcoin Block Halving prediction
=====================================
bc=943540
gbt=1231006505
bbt=1775244386
This is average time to mine a block
(1775244386-1231006505)/943540
bts=576.8036375737779280391631
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 12:48:21 UTC 2028
-------------------------------------
Next palindrome will be 944449
predicted to happen at this time:
Thu Apr 9 21:05:00 UTC 2026
-------------------------------------
Current mining epoch number is 468.
The next fortnight happens in block
945504 and probably around this time:
Thu Apr 16 22:07:08 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
9e428a26ea4cf73a
f1adb7a2ae179027c7d0ec417191f5922b82856cf31f683e8bb85443c3c7294e
cdff5a742eef141a
84793916eb3773cec2e104afbe78fe32aaf01b91977bd010a3250b024eee140c
93109da52ab42c55
b0d96ab486ddd61c1afe8ca5f9c90f40a1bac36c666e268a0b3e99da24de3145
aa553ee8cea85fe0
dc95a76ee26addfed640e64fc8fd12c9d792238dd7a6d94bedf4cfd7796354bb
28fedca04b7887ac
b0cfc453555c6174441b04b48773edd9e454227cd9ce8e3e2f4a4513fbaebd75
4fa380194c83be15
dbaea37e427a38914c2eb75b33a1907adad156ae750a00b761a79b9562e042d0
fbc25ca58b448a3a
feeff75b471a9327441a0156714b8f7d4b4fe9038a772448ccf88843331f985d
7b41f29724e760d6
4793347a490488bff5482d29af8f2ce370f6c6ea054e45eeffe97a56cd157fac
1957d89a90d1886f
e60144424987c961b9e8d1e05ec7026400946a8bee433ea851811401ce2f8eab
cfe855ce8ca537e1
46dc23905ab0e89d5ea5fe14f882eb96cb68c1f0e28f96d6f267be68729cb9a0
793aa6b16f184fe2
288f399824371fc9616fd44a0026b47aa68c3b423c5d1569d4d8c16b69bec790
70f9810756febffa
3a153ed8349447a5da743446ad13c865bae998cbf5f000344aed20cfe8094296
$ niceblack.sh $BH $BC
__ __ __
/ / / /__ ____/ /__
/ _ \/ / _ \/ __/ '_/
/_.__/_/\___/\__/_/\_\
___ ____ ____ ____ ____ ___
/ _ \/ / /|_ // __// / // _ \
\_, /_ _//_