# on receiving block 945746 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-19T08:05:46Z
# as written in the block header
2026-04-19T08:05:39Z
$ uptime # since last reboot
08:05:46 up 30 days, 22:58, 0 users, load average: 1.62, 1.59, 1.57
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1907832 kB
$ du -h -d1 .bitcoin/
12.2G .bitcoin/indexes
4.3G .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 433.5G 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
945746
$ BH=$(bitcoin-cli getblockhash 945746); echo $BH
00000000000000000001f07cf4a46b610c70ca23ad76cc3d6e3029e29ba4d320
$ bitcoin-cli getblockheader 00000000000000000001f07cf4a46b610c70ca23ad76cc3d6e3029e29ba4d320
{
"hash": "00000000000000000001f07cf4a46b610c70ca23ad76cc3d6e3029e29ba4d320",
"confirmations": 1,
"height": 945746,
"version": 627245056,
"versionHex": "25630000",
"merkleroot": "06306ed004957285c446f9ba23aa44755e0b443f68254db7024beb1d44896cc3",
"time": 1776585939,
"mediantime": 1776583535,
"nonce": 1237658906,
"bits": "17021369",
"target": "0000000000000000000213690000000000000000000000000000000000000000",
"difficulty": 135594876535256.6,
"chainwork": "000000000000000000000000000000000000000120e74eda6f29a88b27187492",
"nTx": 4451,
"previousblockhash": "000000000000000000010c30e1001dfb57cb141e07c019f9f199bfdf7f5d5a7f"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 f.7c f4a4 6b61
.c7. ca23 ad76 cc3d
6e3. 29e2 9ba4 d32.
$ : 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
945746 sf: ...1 f.7c .c7. 6e3. 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 .
945746 sk: d32. 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 .
945746 ak: c7f6 74
$ : Following is the jointkode
945746 jk: d320 c7f6 74
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 43691,
"bytes": 29853853,
"usage": 154847608,
"total_fee": 0.03741670,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 1,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
125
## Current epoch estimation is +1.64%
## 242 of 2016, i.e. 12%, 1774 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.863334055784225e+20
$ bitcoin-cli getnetworkhashps 2016 945503
9.704094538460986e+20
$ bitcoin-cli getnetworkhashps 2016 943487
9.942372658458654e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 945746,
"bestblock": "00000000000000000001f07cf4a46b610c70ca23ad76cc3d6e3029e29ba4d320",
"txouts": 165362641,
"bogosize": 12954984317,
"muhash": "5a392c7438bbf0aaa99904d11501e7accaf64e5a9cd4d0146c5f2750ff5acdac",
"total_amount": 20017729.27862576,
"total_unspendable_amount": 230.09637424,
"block_info": {
"prevout_spent": 5017.20834018,
"coinbase": 3.14191395,
"new_outputs_ex_coinbase": 5017.19142623,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 945746
{
"avgfee": 380,
"avgfeerate": 1,
"avgtxsize": 386,
"blockhash": "00000000000000000001f07cf4a46b610c70ca23ad76cc3d6e3029e29ba4d320",
"feerate_percentiles": [
0,
0,
0,
1,
3
],
"height": 945746,
"ins": 7672,
"maxfee": 120928,
"maxfeerate": 73,
"maxtxsize": 56246,
"medianfee": 23,
"mediantime": 1776583535,
"mediantxsize": 222,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 150,
"outs": 10450,
"subsidy": 312500000,
"swtotal_size": 1633706,
"swtotal_weight": 3641945,
"swtxs": 4274,
"time": 1776585939,
"total_out": 501719142623,
"total_size": 1721170,
"total_weight": 3991801,
"totalfee": 1691395,
"txs": 4451,
"utxo_increase": 2778,
"utxo_size_inc": 185875,
"utxo_increase_actual": -701,
"utxo_size_inc_actual": -49240
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3236803686,
"totalbytessent": 7597617951,
"timemillis": 1776585946841,
"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 11 1 12
out 9 0 9 2
total 20 1 21
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 66887,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 66887
}
}
$ halving.sh 945746
=====================================
Bitcoin Block Halving prediction
=====================================
bc=945746
gbt=1231006505
bbt=1776585939
This is average time to mine a block
(1776585939-1231006505)/945746
bts=576.8767270739426083297118
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 15 10:07:25 UTC 2028
-------------------------------------
Next palindrome will be 946649
predicted to happen at this time:
Sat Apr 25 08:47:38 UTC 2026
-------------------------------------
Current mining epoch number is 469.
The next fortnight happens in block
947520 and probably around this time:
Fri May 1 04:21:58 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
11 "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
269934913434b9e6
7cab983d42b6ef7e8437f5a3b0dad7b2689a730b92bce2900fda54c524061bb9
00de322b63e69ca9
56887195a3e4781d68b17844e07d8fa19ab9c4237c44428405f2f3d5858c69f8
75e390c4b40859a6
231b87e24cd7464aa90a5831325c4a03d092d05896d86569e3831000c3da60c5
6ebb79130d8e3072
a3611c4046bd44eb9421f4f4cb5153a7eeaa7a1551fe570d5ad1475dd4f76f4b
35f90c0fb4d27c37
3b97e77c842bee40c1b21522f0ae142bc4bad3e7ea3cbc084ff7ac8597552fae
4cd72d6ab07b7e08
6d23f27119aeb9447dc39d12a031c9248015aa2a4eaaf6fb680f28046726f7bf
cc9d3558209ed806
e01872d03be07ebceb4c4be24948a36016421ad8bc9b8db7e4df7b55ddccc8d4
e811f290e545b557
91b438fd292baa7899673e95f0b574fece959ef344935aa5a4c44e712aba081b
bd5c28ca73d648d3
c6b973db3d90e160e11c217163d545535e65a914a23d65cffd276dcda577f5da
23ebc31ec6577c25
e584eb4cdcf75a16c81a049b7a5b54f3bd5d3084b050a547d4d3f50f96011a4a
22401fefde290001
b8e611394d0fa07cb0754e789ba6b32e790a38349da1a323320d6c176b258034
$ niceblack.sh $BH $BC
___ _ _ ____
/ _ \| || || ___|
| (_) | || ||___ \
\__, |__ _|__) |
/_/ |_||____/
_____ _ _ __
|___ | || | / /_
/ /| || |_| '_ \
/ / |__ _| (_) |
/_/ |_| \___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 f.7c f4a4 6b61 1f |
| 2. .c7. ca23 ad76 cc3d 2f |
| 3. 6e3. 29e2 9ba4 d32. 3f |
'=== ==== ==== ==== ==== ==='
jk: d32. c7f6 74