# on receiving block 927440 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-11T15:33:12Z
# as written in the block header
2025-12-11T15:32:56Z
$ uptime # since last reboot
15:33:12 up 120 days, 1:23, 0 users, load average: 0.83, 0.82, 1.03
$ battery.sh
49%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1936208 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.8G .bitcoin/indexes
3.8G .bitcoin/signet
41.8M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.5G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 834.7G 75.7G 92% /
$ bitcoind -version
Bitcoin Core daemon version libre-relay-v30.0-1
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
927440
$ BH=$(bitcoin-cli getblockhash 927440); echo $BH
000000000000000000003ab71722ea4c46c92d4ed1f82972fb712de559e44ddd
$ bitcoin-cli getblockheader 000000000000000000003ab71722ea4c46c92d4ed1f82972fb712de559e44ddd
{
"hash": "000000000000000000003ab71722ea4c46c92d4ed1f82972fb712de559e44ddd",
"confirmations": 1,
"height": 927440,
"version": 537378816,
"versionHex": "2007c000",
"merkleroot": "2c3f0784dc8424cf4e2781a707c292abae1012efb27e756f1c3fe68afc3f11d8",
"time": 1765467176,
"mediantime": 1765463169,
"nonce": 3290952252,
"bits": "1701e63a",
"target": "00000000000000000001e63a0000000000000000000000000000000000000000",
"difficulty": 148195306640204.7,
"chainwork": "0000000000000000000000000000000000000000fd019ef8015bcf01dc1b3353",
"nTx": 3802,
"previousblockhash": "0000000000000000000121b81d7eb704a2de89bb2f9498ee8e2ffe878d46021c"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 3ab7 1722 ea4c
46c9 2d4e d1f8 2972
fb71 2de5 59e4 4ddd
$ : 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
927440 sf: 4ddd
$ : 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 .
927440 sk: 4ddd 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 .
927440 ak: 9679 b5
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 13738,
"bytes": 3210458,
"usage": 21766608,
"total_fee": 0.01628720,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
506
## Current epoch estimation is +0.46%
## 80 of 2016, i.e. 3%, 1936 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.065448370501096e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 927440,
"bestblock": "000000000000000000003ab71722ea4c46c92d4ed1f82972fb712de559e44ddd",
"txouts": 164807280,
"bogosize": 12917139923,
"muhash": "fcfbb4662bf220caf172f27f689654e45c9f21412af6b89f57526accb869a692",
"total_amount": 19960523.03564014,
"total_unspendable_amount": 230.08935986,
"block_info": {
"prevout_spent": 13146.65536882,
"coinbase": 3.16505220,
"new_outputs_ex_coinbase": 13146.61531593,
"unspendable": 0.00000069,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000069,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 927440
{
"avgfee": 1053,
"avgfeerate": 4,
"avgtxsize": 413,
"blockhash": "000000000000000000003ab71722ea4c46c92d4ed1f82972fb712de559e44ddd",
"feerate_percentiles": [
2,
2,
3,
4,
6
],
"height": 927440,
"ins": 7395,
"maxfee": 94400,
"maxfeerate": 301,
"maxtxsize": 79519,
"medianfee": 479,
"mediantime": 1765463169,
"mediantxsize": 223,
"minfee": 11,
"minfeerate": 0,
"mintxsize": 139,
"outs": 10126,
"subsidy": 312500000,
"swtotal_size": 1410118,
"swtotal_weight": 3347824,
"swtxs": 3445,
"time": 1765467176,
"total_out": 1314661531662,
"total_size": 1571160,
"total_weight": 3991992,
"totalfee": 4005220,
"txs": 3802,
"utxo_increase": 2731,
"utxo_size_inc": 201094,
"utxo_increase_actual": 2635,
"utxo_size_inc_actual": 192340
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 161335067,
"totalbytessent": 313980440,
"timemillis": 1765467192897,
"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 libre-relay-v30.0-1 - server 70016/Satoshi:30.0.0/
ipv4 npr total block libre
in 18 2 20
out 15 0 15 3 4
total 33 2 35
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64063,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64063
}
}
$ halving.sh 927440
=====================================
Bitcoin Block Halving prediction
=====================================
bc=927440
gbt=1231006505
bbt=1765467176
This is average time to mine a block
(1765467176-1231006505)/927440
bts=576.2745781133247290124115
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 8 02:29:48 UTC 2028
-------------------------------------
Next palindrome will be 927729
predicted to happen at this time:
Sat Dec 13 13:48:39 UTC 2025
-------------------------------------
Current mining epoch number is 460.
The next fortnight happens in block
929376 and probably around this time:
Wed Dec 24 13:27:23 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
16 "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
20bb25615571aaf4
2e44958698ec5a32b542252776043d9cb01bf306902a76296c010a9911a3d450
b8b9d06a2b06fe75
137de61158f672987fa8e193dad47158c6810a5a97e80e3d3c87901cf464b897
596eb7bd0e665bec
c5cd278a6a2d0b9ed830b9e7aa04385b5e8d5a667bb8b044869e790a7b85026c
a760870541ffcb40
ad04558363b462b23b0977875afcd11299cbd89c68009689c907f19b19c33365
e0baa2982d93b549
19228d2b5fccd4df6a958ce2efa5734b9a07492ff34ccb8cad3a291318d6a2ee
ede709169f54ba41
c32e266b4cb185ef2beb97699463be825a057eb990d82ab46260b39414d1001b
fc19a033a5eacaac
6f52840d1ae4e0b1261be5af541780b8871188bde4bd1222af339758336fafba
952c29ffb60124fb
b1782830c5bae0295f3438e47a6a1b0a80b0921015dec0e8281b196871c10872
93f43076b3bb3924
69981d77a7d6f7511f8b0f917ac94b15955f133d936a67eb69b40da96931627e
e7bb3d482e5189fd
e661d556184d55dd099b53c221855155b5ad5f273199054a7592f089fd28bc52
5edd4df6e5dd001e
21c1b7bec0fd482ed789edba775edc2c66bf7a436e240f6ba1561cf1b54bf0b5
faf836064b742b54
4ba9079a286cf4e87f119d27f0f3695e2f57e6d2e25aad3c126b7e888f7b16f0
c33d3e9f819834fd
16621ddcae7952af84dc1e2194fb06456e07b65e72c63772089b83f2d378532d
598c74bbbf338c5a
ebb63b2c5517448a74a2b2c278b4c671704b7e8090b9d1c98658c8775da8a07f
06503b6a3ecdf977
4f42c93a0fbb83f655c9ec76bd83b35ba13cbfcf313e730d55d644395696e3e4
269d8ae77d6a8af5
d7c896c09fddab65889b8e370399898ab01c55c98dae8093f568a11f41b76d4b
$ niceblack.sh $BH $BC
___ ____ _____
/ _ \___ \___ |
| (_) |__) | / /
\__, / __/ / /
/_/_____/_/
_ _ _ _ ___
| || | | || | / _ \
| || |_| || |_| | | |
|__ _|__ _| |_| |
|_| |_| \___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 3ab7 1722 ea4c 1f |
| 2. 46c9 2d4e d1f8 2972 2f |
| 3. fb71 2de5 59e4 4ddd 3f |
'=== ==== ==== ==== ==== ==='
ak: 9679 b5