# on receiving block 943611 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-04T10:11:12Z
# as written in the block header
2026-04-04T10:10:45Z
$ uptime # since last reboot
10:11:12 up 16 days, 1:04, 0 users, load average: 0.82, 0.72, 0.85
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2099672 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
943611
$ BH=$(bitcoin-cli getblockhash 943611); echo $BH
000000000000000000015acfafc3518022382fe69bbcf7a60165e7ad34ba2a12
$ bitcoin-cli getblockheader 000000000000000000015acfafc3518022382fe69bbcf7a60165e7ad34ba2a12
{
"hash": "000000000000000000015acfafc3518022382fe69bbcf7a60165e7ad34ba2a12",
"confirmations": 1,
"height": 943611,
"version": 537231360,
"versionHex": "20058000",
"merkleroot": "88aaad0077b184666e0a7c5e61e04e6c4e5b5452d335cf411926ee0ce13209cb",
"time": 1775297445,
"mediantime": 1775290694,
"nonce": 2163549351,
"bits": "17020684",
"target": "0000000000000000000206840000000000000000000000000000000000000000",
"difficulty": 138966872071213.2,
"chainwork": "00000000000000000000000000000000000000011ccc221d377372254f92a320",
"nTx": 4243,
"previousblockhash": "0000000000000000000183f738361fd405b408eda6cdf03c1b2adbf1d7495125"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 5acf afc3 518.
2238 2fe6 9bbc f7a6
.165 e7ad 34ba 2a12
$ : 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
943611 sf: ...1 518. .165 2a12
$ : 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 .
943611 sk: 2a12 94
$ : 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 .
943611 ak: 3d29 94
$ : Following is the jointkode
943611 jk: 2a12 3d29 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 18958,
"bytes": 15133331,
"usage": 80425944,
"total_fee": 0.03171657,
"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
209
## Current epoch estimation is -1.37%
## 123 of 2016, i.e. 6%, 1893 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.805333293359499e+20
$ bitcoin-cli getnetworkhashps 2016 943487
9.942372658458654e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 943611,
"bestblock": "000000000000000000015acfafc3518022382fe69bbcf7a60165e7ad34ba2a12",
"txouts": 165159038,
"bogosize": 12941163581,
"muhash": "e478bcb1f51e55ed944fa83adc84b1ca502d180aaf8055e987c0cdcf62a26c89",
"total_amount": 20011057.40521434,
"total_unspendable_amount": 230.09478566,
"block_info": {
"prevout_spent": 4203.32198038,
"coinbase": 3.15450464,
"new_outputs_ex_coinbase": 4203.29247573,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 943611
{
"avgfee": 695,
"avgfeerate": 2,
"avgtxsize": 385,
"blockhash": "000000000000000000015acfafc3518022382fe69bbcf7a60165e7ad34ba2a12",
"feerate_percentiles": [
1,
1,
2,
3,
4
],
"height": 943611,
"ins": 7742,
"maxfee": 74088,
"maxfeerate": 87,
"maxtxsize": 65684,
"medianfee": 319,
"mediantime": 1775290694,
"mediantxsize": 223,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9388,
"subsidy": 312500000,
"swtotal_size": 1489471,
"swtotal_weight": 3413473,
"swtxs": 3974,
"time": 1775297445,
"total_out": 420329247574,
"total_size": 1634044,
"total_weight": 3991765,
"totalfee": 2950464,
"txs": 4243,
"utxo_increase": 1646,
"utxo_size_inc": 123820,
"utxo_increase_actual": 1495,
"utxo_size_inc_actual": 109248
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3051890928,
"totalbytessent": 6354489576,
"timemillis": 1775297473165,
"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 21 1 22
out 10 0 10 2
total 31 1 32
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62344,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62344
}
}
$ halving.sh 943611
=====================================
Bitcoin Block Halving prediction
=====================================
bc=943611
gbt=1231006505
bbt=1775297445
This is average time to mine a block
(1775297445-1231006505)/943611
bts=576.8164669376820133699020
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 16:32:52 UTC 2028
-------------------------------------
Next palindrome will be 944449
predicted to happen at this time:
Fri Apr 10 00:26:57 UTC 2026
-------------------------------------
Current mining epoch number is 468.
The next fortnight happens in block
945504 and probably around this time:
Fri Apr 17 01:29:18 UTC 2026
### 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
cdff5a742eef141a
84793916eb3773cec2e104afbe78fe32aaf01b91977bd010a3250b024eee140c
93109da52ab42c55
b0d96ab486ddd61c1afe8ca5f9c90f40a1bac36c666e268a0b3e99da24de3145
aa553ee8cea85fe0
dc95a76ee26addfed640e64fc8fd12c9d792238dd7a6d94bedf4cfd7796354bb
28fedca04b7887ac
b0cfc453555c6174441b04b48773edd9e454227cd9ce8e3e2f4a4513fbaebd75
4fa380194c83be15
dbaea37e427a38914c2eb75b33a1907adad156ae750a00b761a79b9562e042d0
fbc25ca58b448a3a
feeff75b471a9327441a0156714b8f7d4b4fe9038a772448ccf88843331f985d
7b41f29724e760d6
4793347a490488bff5482d29af8f2ce370f6c6ea054e45eeffe97a56cd157fac
1957d89a90d1886f
e60144424987c961b9e8d1e05ec7026400946a8bee433ea851811401ce2f8eab
cfe855ce8ca537e1
46dc23905ab0e89d5ea5fe14f882eb96cb68c1f0e28f96d6f267be68729cb9a0
793aa6b16f184fe2
288f399824371fc9616fd44a0026b47aa68c3b423c5d1569d4d8c16b69bec790
93b71f6411eb04ad
fe94faab396107b8279e3e59dc84da3046069161800b874e13e60632eb8a47d3
4a89496d1d8583ca
9ddf15d0c90ea68d0d93aa174d7f0ee52d3887e8d01b31af43ba9b12e000d125
05fd879efdf20907
820a7cbb146d008a921c4b4a4a1e59ff2626c4180aec04597917b3d41d2dfb3c
35d8a65137e44da6
30b00d7dcc9d4ebc91aa599d9c753e39f73e5ebda30b38b9303e11ad3ca61464
de15e35668571c91
d61c4b03b3757c60025fa9004585f6b0b1299ec492fb8d10d0515e497c0af32e
$ niceblack.sh $BH $BC
____ __ __ _____ ___________
/ __ \/ // /|__ / / ___< < /
/ /_/ / // /_ /_ < / __ \/ // /
\__, /__ __/__/ / / /_/ / // /
/____/ /_/ /____/ \____/_//_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 5acf afc3 518. 1f |
| 2. 2238 2fe6 9bbc f7a6 2f |
| 3. .165 e7ad 34ba 2a12 3f |
'=== ==== ==== ==== ==== ==='
jk: 2a12 3d29 94