# on receiving block 895994 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-05-09T18:57:02Z
# as written in the block header
2025-05-09T18:56:31Z
$ uptime # since last reboot
18:57:02 up 96 days, 6:36, 0 users, load average: 1.30, 1.10, 1.35
$ battery.sh
124%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1957528 kB
$ du -h -d1 .bitcoin/
11.2G .bitcoin/indexes
1.8G .bitcoin/signet
3.4M .bitcoin/wallets
97.7G .bitcoin/blocks
11.1G .bitcoin/chainstate
15.0G .bitcoin/testnet3
136.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 836.4G 74.1G 92% /
$ bitcoind -version
Bitcoin Core daemon version v29.0
Copyright (C) 2009-2025 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
895994
$ BH=$(bitcoin-cli getblockhash 895994); echo $BH
000000000000000000023fe46a261753088091b80baa678b4f11c18ac47bcaf6
$ bitcoin-cli getblockheader 000000000000000000023fe46a261753088091b80baa678b4f11c18ac47bcaf6
{
"hash": "000000000000000000023fe46a261753088091b80baa678b4f11c18ac47bcaf6",
"confirmations": 1,
"height": 895994,
"version": 538968064,
"versionHex": "20200000",
"merkleroot": "041e3c172389d044088945df78151ca72fb77e86926a9d50b6ef18c1b1575cf8",
"time": 1746816991,
"mediantime": 1746811651,
"nonce": 2390923310,
"bits": "17025ced",
"target": "000000000000000000025ced0000000000000000000000000000000000000000",
"difficulty": 119116256505723.5,
"chainwork": "0000000000000000000000000000000000000000c1f23a25ea8c5f9e343e0f6a",
"nTx": 3906,
"previousblockhash": "000000000000000000011cf5321f59debdf13f302a5e567bde45f29a6a9a6cef"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...2 3fe4 6a26 1753
.88. 91b8 .baa 678b
4f11 c18a c47b caf6
$ : 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
895994 sf: ...2 .88. .baa caf6
$ : 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 .
895994 sk: caf6 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 .
895994 ak: 379c 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 9316,
"bytes": 22051524,
"usage": 87641696,
"total_fee": 0.34684914,
"maxmempool": 300000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
1572
## Current epoch estimation is +3.34%
## 890 of 2016, i.e. 44%, 1126 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.809961590915708e+20
$ bitcoin-cli getnetworkhashps 2016 895103
8.524479268489561e+20
$ bitcoin-cli getnetworkhashps 2016 893087
8.821342073060424e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 895994,
"bestblock": "000000000000000000023fe46a261753088091b80baa678b4f11c18ac47bcaf6",
"txouts": 173040890,
"bogosize": 13545976797,
"muhash": "1af2b700e0a90f46a95538b4532f5ac2f51a3d96dc3955c5e4ecfdc0f6b67d5a",
"total_amount": 19862263.35338771,
"total_unspendable_amount": 221.02161229,
"block_info": {
"prevout_spent": 14769.41942805,
"coinbase": 3.19967536,
"new_outputs_ex_coinbase": 14769.34475269,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 895994
{
"avgfee": 1912,
"avgfeerate": 7,
"avgtxsize": 400,
"blockhash": "000000000000000000023fe46a261753088091b80baa678b4f11c18ac47bcaf6",
"feerate_percentiles": [
5,
5,
6,
7,
10
],
"height": 895994,
"ins": 7209,
"maxfee": 159060,
"maxfeerate": 225,
"maxtxsize": 68369,
"medianfee": 1015,
"mediantime": 1746811651,
"mediantxsize": 223,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 150,
"outs": 12052,
"subsidy": 312500000,
"swtotal_size": 1471851,
"swtotal_weight": 3629832,
"swtxs": 3635,
"time": 1746816991,
"total_out": 1476934475269,
"total_size": 1562367,
"total_weight": 3991896,
"totalfee": 7467536,
"txs": 3906,
"utxo_increase": 4843,
"utxo_size_inc": 359839,
"utxo_increase_actual": 4771,
"utxo_size_inc_actual": 352835
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2342775304,
"totalbytessent": 4452669130,
"timemillis": 1746817023480,
"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 v29.0 - server 70016/Satoshi:29.0.0/
ipv4 npr total block
in 28 2 30
out 11 0 11 3
total 39 2 41
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 61992,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 61992
}
}
$ halving.sh 895994
=====================================
Bitcoin Block Halving prediction
=====================================
bc=895994
gbt=1231006505
bbt=1746816991
This is average time to mine a block
(1746816991-1231006505)/895994
bts=575.6845585075809574830216
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Feb 29 22:24:27 UTC 2028
-------------------------------------
Next palindrome will be 896698
predicted to happen at this time:
Wed May 14 11:31:12 UTC 2025
-------------------------------------
Current mining epoch number is 444.
The next fortnight happens in block
897120 and probably around this time:
Sat May 17 07:00:11 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
7 "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
8c3d576bd3990c91
e724591685977ba82b8e0d8fc327132784871e36f62550da667a6ecd64ae7b30
d4c3b1cf7033ee2c
0b79f0823faa11376168d2a6bae25e1e28ddd641563ec95d2836f3f5557a5ec7
72c41524887e56a1
41574448e74f32958b7f1f04e42b7e1806c9b5762057a7193fd425ca11c34e16
d6ce3d047bda2984
61b09e76b42fc1a2a145c9560b0d04280462be383ad8a52d16857b2b9439011a
29b65b948e88ca8e
6ab88f3d7ae7069973cc1b6efa5527ca1b6bb378f887307a56fc65482b4c5fc8
4c235001466d21d9
ecdb82c9a3639325a55bdac66d8e1bd1b232227de92a04c4b2a1b350f2fea80d
77710ce81498bbd9
ab3dab655afa280adeadd1172cced2a9f8200a20ff41186136ad75de8d028765
$ niceblack.sh $BH $BC
___ ___ ____
( _ )/ _ \| ___|
/ _ \ (_) |___ \
| (_) \__, |___) |
\___/ /_/|____/
___ ___ _ _
/ _ \ / _ \| || |
| (_) | (_) | || |_
\__, |\__, |__ _|
/_/ /_/ |_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...2 3fe4 6a26 1753 1f |
| 2. .88. 91b8 .baa 678b 2f |
| 3. 4f11 c18a c47b caf6 3f |
'=== ==== ==== ==== ==== ==='
ak: 379c 94