# on receiving block 945461 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-17T08:52:48Z
# as written in the block header
2026-04-17T08:52:30Z
$ uptime # since last reboot
08:52:48 up 28 days, 23:45, 0 users, load average: 1.23, 1.52, 1.69
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2032284 kB
$ du -h -d1 .bitcoin/
12.2G .bitcoin/indexes
4.4G .bitcoin/signet
2.7M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.0G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.6G 476.9G 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
945461
$ BH=$(bitcoin-cli getblockhash 945461); echo $BH
000000000000000000001f52195fbb38767acfd3529374658184fb3f344fe5f1
$ bitcoin-cli getblockheader 000000000000000000001f52195fbb38767acfd3529374658184fb3f344fe5f1
{
"hash": "000000000000000000001f52195fbb38767acfd3529374658184fb3f344fe5f1",
"confirmations": 1,
"height": 945461,
"version": 537518080,
"versionHex": "2009e000",
"merkleroot": "2330617ce465232e073b1d8bb5980dd9618dad81aff7c5ee27c08836dae469df",
"time": 1776415950,
"mediantime": 1776414114,
"nonce": 1709296748,
"bits": "17020684",
"target": "0000000000000000000206840000000000000000000000000000000000000000",
"difficulty": 138966872071213.2,
"chainwork": "0000000000000000000000000000000000000001205d828131be0b1ef24e7730",
"nTx": 3309,
"previousblockhash": "00000000000000000001745f2be4200ad8568386cbd0f46768d0c8a26b2ed907"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 1f52 195f bb38
767a cfd3 5293 7465
8184 fb3f 344f e5f1
$ : 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
945461 sf: e5f1
$ : 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 .
945461 sk: e5f1 b5
$ : 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 .
945461 ak: 896f b5
$ : Following is the jointkode
945461 jk: e5f1 896f b5
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 54666,
"bytes": 30955191,
"usage": 164332176,
"total_fee": 0.03950822,
"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
127
## Current epoch estimation is -2.36%
## 1973 of 2016, i.e. 97%, 43 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.707575168118535e+20
$ bitcoin-cli getnetworkhashps 2016 943487
9.942372658458654e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 945461,
"bestblock": "000000000000000000001f52195fbb38767acfd3529374658184fb3f344fe5f1",
"txouts": 165281720,
"bogosize": 12949131838,
"muhash": "2d22228441906ae7cc626e26e0278e1766d88b2553e2bd81bc8dc2e553cbf720",
"total_amount": 20016838.65381285,
"total_unspendable_amount": 230.09618715,
"block_info": {
"prevout_spent": 6729.64109272,
"coinbase": 3.15080208,
"new_outputs_ex_coinbase": 6729.61529060,
"unspendable": 0.00000004,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000004,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 945461
{
"avgfee": 779,
"avgfeerate": 2,
"avgtxsize": 479,
"blockhash": "000000000000000000001f52195fbb38767acfd3529374658184fb3f344fe5f1",
"feerate_percentiles": [
0,
1,
2,
2,
3
],
"height": 945461,
"ins": 7450,
"maxfee": 152543,
"maxfeerate": 272,
"maxtxsize": 51164,
"medianfee": 282,
"mediantime": 1776414114,
"mediantxsize": 235,
"minfee": 24,
"minfeerate": 0,
"mintxsize": 139,
"outs": 8931,
"subsidy": 312500000,
"swtotal_size": 1403462,
"swtotal_weight": 3261668,
"swtxs": 3099,
"time": 1776415950,
"total_out": 672961529064,
"total_size": 1586001,
"total_weight": 3991824,
"totalfee": 2580208,
"txs": 3309,
"utxo_increase": 1481,
"utxo_size_inc": 107461,
"utxo_increase_actual": 862,
"utxo_size_inc_actual": 60625
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2480981582,
"totalbytessent": 5854731012,
"timemillis": 1776415968654,
"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 27 1 28
out 10 0 10 2
total 37 1 38
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 66445,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 66445
}
}
$ halving.sh 945461
=====================================
Bitcoin Block Halving prediction
=====================================
bc=945461
gbt=1231006505
bbt=1776415950
This is average time to mine a block
(1776415950-1231006505)/945461
bts=576.8708261146402499518753
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 15 08:24:09 UTC 2028
-------------------------------------
Next palindrome will be 945549
predicted to happen at this time:
Fri Apr 17 22:58:34 UTC 2026
-------------------------------------
Current mining epoch number is 468.
The next fortnight happens in block
945504 and probably around this time:
Fri Apr 17 15:45:55 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
21 "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
f56a262282741ea8
4df63dc3c6ced6934e7e313d066ce2be54845ec57965f0fbbbe132913df3a290
755b9f5f93db7723
980b5373be7fa0da140ccfe912855a0dd8472c36f24cba24cb38c93ba67f7e6a
08e90a4e886cc004
b19ee80a24ad973d85ec6c250d333b553204b0f770aa8723c02903f8e7ef8f43
e2e3a8a9b66f66cc
59322e76b5e77ad210cfdddd2d249181a5c2f8b0190ac3d54ab12f933dc1b514
874ecb7e09c0d7ad
6200b6c82799730ff7cfb724410fe6dba6f2830ac6a3f6c8fa9b04e7ae924d2e
b981533910ce48a3
ae45381732a48cee007c7de039143946fed374651851a22f6ba8dacaf0cf39da
102ab9eb2c54dc95
71d93f553cfa092d3efb195f4480571de4b900406a831880fda71f5f04161a90
6eebcb0b3f6aaadf
1580cd60cd863a012d5ac079453db185f9521c106ea7a900398fa3b7be1c13fa
269934913434b9e6
7cab983d42b6ef7e8437f5a3b0dad7b2689a730b92bce2900fda54c524061bb9
d5af3293cde8f897
724478cb113a3d5c7d0a8520d8f6ff57e2f6a8a844dae6f7a1975958546f4989
cf3bab726e1fad42
3ee26187dd1b6c1fba02b5874e6a672e6cc024f2c646061f70884455651d6d62
ff20bf563b191902
3d49033859784c0a3ccdfad011bb5b8ab9a8c1d53e6e58603eceb8e64986d21f
37234d3a933b3cb6
62b5e25c094c2cb79d555063651282f10fb9718f8f2b0d340970c2f7db20171a
671bd6aee3730b72
59f9ee03009e7705817c32fed098564a0636875e0857a61d6ac9db9742ef1ca0
c218a8b2f8ca6a2f
c5a3105ff664fda6887ee708947f8f36b390fb778e6f9c568686f64d38e5732c
962d80111d869bd2
cdc1d33633c61d2b97dfaaef0cbb508ad78af19feb7a7142e5db7f3e29d9a3bd
e9836641806290cb
433cfe44095179c0988c813d45ff9e61abad76a3a77778289108a027c74dbeab
cdd3a16921e82e46
d3b77011c3ead9791df3db27d0f29bc9a2facf667b8e7c9cea1cd783c514e41f
3b71b1ea166f7613
a2c2255b0e9937b2f2554adf6b40f625b03b78332570e48a249024e3e49de4e3
0ffe8eb88eb7b4f3
c76c2d18246386a9a9bdf1081607e46ee5f89f68ed92c6cea31cc7a546badddd
9c7afdb29342c715
817731f4e1c6cbe45b101b0186fc33d66c94e65af67a240d7832aff1e5149e5d
$ niceblack.sh $BH $BC
_|_| _| _| _|_|_|_|
_| _| _| _| _|
_|_|_| _|_|_|_| _|_|_|
_| _| _|
_|_|_| _| _|_|_|
_| _| _|_|_| _|
_| _| _| _|_|
_|_|_|_| _|_|_| _|
_| _| _| _|
_| _|_| _|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 1f52 195f bb38 1f |
| 2. 767a cfd3 5293 7465 2f |
| 3. 8184 fb3f 344f e5f1 3f |
'=== ==== ==== ==== ==== ==='
jk: e5f1 896f b5