# on receiving block 925481 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-11-27T22:57:01Z
# as written in the block header
2025-11-27T22:56:46Z
$ uptime # since last reboot
22:57:01 up 106 days, 8:47, 0 users, load average: 2.02, 2.23, 2.19
$ battery.sh
50%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1807200 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.8G .bitcoin/indexes
3.6G .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 833.6G 76.9G 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
925481
$ BH=$(bitcoin-cli getblockhash 925481); echo $BH
000000000000000000004d301d6545f53388d1686801d260d2d97f1da6fcb388
$ bitcoin-cli getblockheader 000000000000000000004d301d6545f53388d1686801d260d2d97f1da6fcb388
{
"hash": "000000000000000000004d301d6545f53388d1686801d260d2d97f1da6fcb388",
"confirmations": 1,
"height": 925481,
"version": 556474368,
"versionHex": "212b2000",
"merkleroot": "53bc228292ff67fc90a09327e665709fb7dfd54e5326f1adff2ceefb391e2b0f",
"time": 1764284206,
"mediantime": 1764283419,
"nonce": 753365792,
"bits": "1701e2a0",
"target": "00000000000000000001e2a00000000000000000000000000000000000000000",
"difficulty": 149301205959699.9,
"chainwork": "0000000000000000000000000000000000000000f8f2d267a4106c8553cd96d8",
"nTx": 5418,
"previousblockhash": "00000000000000000001991b4026c7b256111e707dc1a7216a8fd46482b89e8a"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 4d3. 1d65 45f5
3388 d168 68.1 d26.
d2d9 7f1d a6fc b388
$ : 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
925481 sf: 4d3. 68.1 d26. b388
$ : 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 .
925481 sk: b388 85
$ : 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 .
925481 ak: f591 85
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 23842,
"bytes": 25708632,
"usage": 139519920,
"total_fee": 0.02720456,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
105
## Current epoch estimation is -0.13%
## 137 of 2016, i.e. 6%, 1879 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.067051108747237e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli getnetworkhashps 2016 923327
1.089721987248796e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 925481,
"bestblock": "000000000000000000004d301d6545f53388d1686801d260d2d97f1da6fcb388",
"txouts": 165464003,
"bogosize": 12963048486,
"muhash": "9a181c5ce19944f4d652b4d65e38c4205c1bbe08dc20272d89c8b4ddf42278f8",
"total_amount": 19954401.16128110,
"total_unspendable_amount": 230.08871890,
"block_info": {
"prevout_spent": 3046.02683324,
"coinbase": 3.13354256,
"new_outputs_ex_coinbase": 3046.01829068,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 925481
{
"avgfee": 157,
"avgfeerate": 0,
"avgtxsize": 321,
"blockhash": "000000000000000000004d301d6545f53388d1686801d260d2d97f1da6fcb388",
"feerate_percentiles": [
0,
0,
0,
1,
2
],
"height": 925481,
"ins": 7024,
"maxfee": 45905,
"maxfeerate": 98,
"maxtxsize": 239982,
"medianfee": 21,
"mediantime": 1764283419,
"mediantxsize": 222,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 150,
"outs": 11433,
"subsidy": 312500000,
"swtotal_size": 1660177,
"swtotal_weight": 3671227,
"swtxs": 5228,
"time": 1764284206,
"total_out": 304601829068,
"total_size": 1740248,
"total_weight": 3991511,
"totalfee": 854256,
"txs": 5418,
"utxo_increase": 4409,
"utxo_size_inc": 310281,
"utxo_increase_actual": 113,
"utxo_size_inc_actual": 9005
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 12361452852,
"totalbytessent": 31191002637,
"timemillis": 1764284223953,
"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 26 2 28
out 14 0 14 2 4
total 40 2 42
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64969,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64969
}
}
$ halving.sh 925481
=====================================
Bitcoin Block Halving prediction
=====================================
bc=925481
gbt=1231006505
bbt=1764284206
This is average time to mine a block
(1764284206-1231006505)/925481
bts=576.2161781644591683036515
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 7 09:27:48 UTC 2028
-------------------------------------
Next palindrome will be 925529
predicted to happen at this time:
Fri Nov 28 06:37:44 UTC 2025
-------------------------------------
Current mining epoch number is 459.
The next fortnight happens in block
927360 and probably around this time:
Wed Dec 10 11:41:56 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
22 "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
e11dac883c2e1064
502452849dd7bafc1ba13b0fbcf444bdf0620703ba4d38d2abf85839973039ef
473f2ae55f05a1b6
360613c3c12da63b8455024cb231ef8ee4a1efc687c53126be44df2f8949b49c
93f43076b3bb3924
d9265ebbedb08c056347ba9c5f03b94fc83380b52b11dd8630c434f4e3cc40a5
84fd0a77d7e55809
c8f7156603894a75398c0eb58f9f89c91a0e3c46a6e1e1cee040eb45619d3de3
28fedca04b7887ac
76362823239d9dd5926a3f61949dd64c7fa82e54841b1f1f89ba7d6b93cddf70
b96173b624016672
062b3bd9f4a9ab105175a8c1dba0a7879dad84c69296b99021a8bc66d15a6f3f
5464523bc87fc9ed
4a79785b619ec6cbf5d7585d2079f774a7e25adeff8f97db968502463deb3ff0
22821c3151412da3
642e3647d0e6d34d0b0557a4c027771954ebde851242ca5da420d86135ed7e3c
c9da370b2f354dfe
a1563ceadd6ff4c5d91ff19fc65374a3d6f15f55d07a933e6f821a81cf9886a9
38d86adc8a2587d7
4ce2c88bf801ef4ebf85427beb89216dbffaa5268076c3503467df2e0e6b55e4
952c29ffb60124fb
d51095df42dc58cf23039200747753ec5d06aeec75d793ad5f3cd9225e2e362b
7b9a1ca6d304d08a
d8d6b6d674341580f47bcec55363adbd92309785f43f7d248730cbaa2f76cf84
2f483f8248b737c5
a1ab3d05c57873f38b254f3e70cdcbe2673d3222c9795f2182b1d8bae3c72ac5
79d69d65494a59e2
9a8ef6f0173541e6ec1811c68b38cf5176e726f454470c0f7f618c1411c7142e
6b3034d557f417de
7a62d77f6a4fa298f56bfc602775cb70afe2408d3e3f74f6a59fd61ef61091f2
42033300ad5bc2a1
5b362dc619958a18fd0c35625c316ffd07235cb7dfb6f96d38d5297212849d06
e468ba1203301cbd
baae900bcb17983450a43d5688c7df3157cbbf01a1ad124b0802fcc8da28f60a
23f66ce810209d34
4d0f33dd52104d8e0b17a616478a21cfa0db8d584f255a140d5df340cedc3eec
e6d75eaafb9f5532
d9b9c000f44df70030e9b0ce653867962b4e14094672292db73642cddf3f1830
7984147af4e27f79
c46e320070b3c51fd5a3f014dd60c52bbc470c27f81cf8ffc61447cba3f01d38
08063a1fda15d887
f103533e6d014c99c4265217bf8ef295c28cfcd5cb0bbc47c0d0b176b5f60223
e4c3530e54625502
aa8577f7cae296e8f9c7dc1c2aa1872f1f80a740d6dc6e02594aa88a66cd5661
$ niceblack.sh $BH $BC
_|_| _|_| _|_|_|_|
_| _| _| _| _|
_|_|_| _| _|_|_|
_| _| _|
_|_|_| _|_|_|_| _|_|_|
_| _| _|_| _|
_| _| _| _| _|_|
_|_|_|_| _|_| _|
_| _| _| _|
_| _|_| _|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 4d3. 1d65 45f5 1f |
| 2. 3388 d168 68.1 d26. 2f |
| 3. d2d9 7f1d a6fc b388 3f |
'=== ==== ==== ==== ==== ==='
ak: f591 85