# on receiving block 927817 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-14T05:52:39Z
# as written in the block header
2025-12-14T05:52:22Z
$ uptime # since last reboot
05:52:39 up 122 days, 15:43, 0 users, load average: 1.82, 1.81, 1.78
$ battery.sh
50%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1722896 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.8G .bitcoin/indexes
3.7G .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 834.0G 76.4G 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
927817
$ BH=$(bitcoin-cli getblockhash 927817); echo $BH
000000000000000000019768020ea2444747d93416780efac348d23093df8eab
$ bitcoin-cli getblockheader 000000000000000000019768020ea2444747d93416780efac348d23093df8eab
{
"hash": "000000000000000000019768020ea2444747d93416780efac348d23093df8eab",
"confirmations": 1,
"height": 927817,
"version": 536928256,
"versionHex": "2000e000",
"merkleroot": "1abd82c4670d7a62226a708621aa1811dff75dd5877c6f6726a5d76b9ead29c5",
"time": 1765691542,
"mediantime": 1765689571,
"nonce": 622629333,
"bits": "1701e63a",
"target": "00000000000000000001e63a0000000000000000000000000000000000000000",
"difficulty": 148195306640204.7,
"chainwork": "0000000000000000000000000000000000000000fdc81ce08d1cc6ba2816579e",
"nTx": 5761,
"previousblockhash": "000000000000000000008ca4616dbc1dcef2099a8782eff679991e0ae1f8d4c9"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 9768 .2.e a244
4747 d934 1678 .efa
c348 d23. 93df 8eab
$ : 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
927817 sf: ...1 .2.e .efa d23. 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 .
927817 sk: 8eab 84
$ : 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 .
927817 ak: bdde 84
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 38444,
"bytes": 26525689,
"usage": 151862688,
"total_fee": 0.02772329,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
104
## Current epoch estimation is +0.01%
## 457 of 2016, i.e. 22%, 1559 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.060724330136831e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 927817,
"bestblock": "000000000000000000019768020ea2444747d93416780efac348d23093df8eab",
"txouts": 164699626,
"bogosize": 12908939162,
"muhash": "13f8640592ea35442bcfd8ccbe5ba8dc0d193f50af424eb31dd1c5f0ee712834",
"total_amount": 19961701.16057287,
"total_unspendable_amount": 230.08942713,
"block_info": {
"prevout_spent": 187.38644848,
"coinbase": 3.12804749,
"new_outputs_ex_coinbase": 187.38340099,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 927817
{
"avgfee": 52,
"avgfeerate": 0,
"avgtxsize": 293,
"blockhash": "000000000000000000019768020ea2444747d93416780efac348d23093df8eab",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 927817,
"ins": 6251,
"maxfee": 10500,
"maxfeerate": 33,
"maxtxsize": 58926,
"medianfee": 20,
"mediantime": 1765689571,
"mediantxsize": 222,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 150,
"outs": 13712,
"subsidy": 312500000,
"swtotal_size": 1683829,
"swtotal_weight": 3973999,
"swtxs": 5744,
"time": 1765691542,
"total_out": 18738340099,
"total_size": 1688249,
"total_weight": 3991679,
"totalfee": 304749,
"txs": 5761,
"utxo_increase": 7461,
"utxo_size_inc": 532529,
"utxo_increase_actual": 2032,
"utxo_size_inc_actual": 146136
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 1171836225,
"totalbytessent": 2213788956,
"timemillis": 1765691560176,
"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 16 2 18
out 14 0 14 2 4
total 30 2 32
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62592,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62592
}
}
$ halving.sh 927817
=====================================
Bitcoin Block Halving prediction
=====================================
bc=927817
gbt=1231006505
bbt=1765691542
This is average time to mine a block
(1765691542-1231006505)/927817
bts=576.2822417758655253508770
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 8 04:43:55 UTC 2028
-------------------------------------
Next palindrome will be 928829
predicted to happen at this time:
Sat Dec 20 23:52:19 UTC 2025
-------------------------------------
Current mining epoch number is 460.
The next fortnight happens in block
929376 and probably around this time:
Wed Dec 24 15:26:06 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
17 "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
9368a2868c6ca52d
d8697c481b6339734411359c40f32a07e9b589d78ee0ace63a3c1ea3b5f75df2
14b8cae692174169
7fc386a3e3575087cb1562135bd1e3ac93b24672838f861c833b5b23a0b8411e
ce11c19bf8bf5570
88bd3b684d4ce4099c2c9e78365007b5e1e13b37b69580136433c2cc1032188b
b15e4d890262ee80
e9a41b96e5c4e09fef52c4a49db89376e7efd034bd4a2e625adc2c02885dd5bd
25e5c8117d149177
71192b21dc3deb123f2743e91469f451f75833d36225bb9a237966e568881552
ca34563bd28e8092
63e3a61b34e34003bda0b70ee3d49ea926738312e69d4a7fe21e5fb5522b72c7
b33d9979c3ac519f
fe468c9082d1f2d2a5698000839f0612acc57604b1e68db987f11cb485d8439c
5edd4df6e5dd001e
5a05c7024ccfda103a390affb65c7220b8dd058d47b2804928a698e91cc73f41
244ab012ce20a77d
d65b77c6d3b0528294569c41e2d6f398d193970666e4813106f5ffc55b909f82
7b9a1ca6d304d08a
7f1a74c40a932e0442fb8f3545dc5a8b09c3c7bb5ba078a4987b13dfc5d3b4d9
2f483f8248b737c5
c52be77074176d57f290e6033fa8b7e357759b7d885b957de26dd45b2b9b4df7
e196de8b5a578be4
7c39b2b2a3dcdf120a14317b74389a69743352ddd8ea94418cf70fc4fedea5d0
9dcb5e85e7380fc8
a600f255f3c73c6a94dfeb4625c9792b0bf2962b5e5edb4c49fbc61a5872c8c8
2df2f5fd01aed896
df3e754efb797bffc59313f415b3a42b116f4bbe61b1d4eff32ecd28cec1d320
2d123690160b910e
32357254b1f6f128d50f3541c8351379ed2db1e248643d8211883d9234298ba2
$ niceblack.sh $BH $BC
__ __ __
/ / / /__ ____/ /__
/ _ \/ / _ \/ __/ '_/
/_.__/_/\___/\__/_/\_\
___ ___ _______ _______
/ _ \|_ /_ ( _ < /_ /
\_, / __/ / / _ / / / /
/___/____//_/\___/_/ /_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 9768 .2.e a244 1f |
| 2. 4747 d934 1678 .efa 2f |
| 3. c348 d23. 93df 8eab 3f |
'=== ==== ==== ==== ==== ==='
ak: bdde 84
...............| |..|.|||.||.|...