# on receiving block 930185 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-30T18:47:41Z
# as written in the block header
2025-12-30T18:46:56Z
$ uptime # since last reboot
18:47:41 up 139 days, 4:38, 0 users, load average: 1.90, 1.91, 1.90
$ battery.sh
48%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2037776 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.9G .bitcoin/indexes
3.8G .bitcoin/signet
41.8M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.7G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 834.3G 76.1G 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
930185
$ BH=$(bitcoin-cli getblockhash 930185); echo $BH
0000000000000000000018ee69370a2acf98de0cbe845883b3c2e821256316a4
$ bitcoin-cli getblockheader 0000000000000000000018ee69370a2acf98de0cbe845883b3c2e821256316a4
{
"hash": "0000000000000000000018ee69370a2acf98de0cbe845883b3c2e821256316a4",
"confirmations": 1,
"height": 930185,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "58dfeaea94cfdca23cd930db4ae5ad33c853618f60748a5b268c74750e7fd8a7",
"time": 1767120416,
"mediantime": 1767118652,
"nonce": 502817180,
"bits": "1701e605",
"target": "00000000000000000001e6050000000000000000000000000000000000000000",
"difficulty": 148258433855481.3,
"chainwork": "000000000000000000000000000000000000000102a70e0878e9723a7b6ad598",
"nTx": 613,
"previousblockhash": "00000000000000000001808d60381c31e2684fa80878fe3b75efad949d9f6957"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 18ee 6937 .a2a
cf98 de.c be84 5883
b3c2 e821 2563 16a4
$ : 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
930185 sf: .a2a de.c 16a4
$ : 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 .
930185 sk: 16a4 95
$ : 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 .
930185 ak: e444 95
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 41623,
"bytes": 21971067,
"usage": 128510016,
"total_fee": 0.03113729,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
141
## Current epoch estimation is +0.14%
## 809 of 2016, i.e. 40%, 1207 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.062795916510927e+21
$ bitcoin-cli getnetworkhashps 2016 929375
1.06126766979058e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 930185,
"bestblock": "0000000000000000000018ee69370a2acf98de0cbe845883b3c2e821256316a4",
"txouts": 165599899,
"bogosize": 12974402976,
"muhash": "791a836d9cad53f7597ef023edf16d4cd6aef4d79fd8d52565e9beea577c29f7",
"total_amount": 19969101.16004900,
"total_unspendable_amount": 230.08995100,
"block_info": {
"prevout_spent": 1651.27418487,
"coinbase": 3.13036551,
"new_outputs_ex_coinbase": 1651.26881936,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 930185
{
"avgfee": 876,
"avgfeerate": 2,
"avgtxsize": 504,
"blockhash": "0000000000000000000018ee69370a2acf98de0cbe845883b3c2e821256316a4",
"feerate_percentiles": [
1,
1,
2,
3,
5
],
"height": 930185,
"ins": 1654,
"maxfee": 30423,
"maxfeerate": 84,
"maxtxsize": 55302,
"medianfee": 330,
"mediantime": 1767118652,
"mediantxsize": 223,
"minfee": 110,
"minfeerate": 1,
"mintxsize": 150,
"outs": 1548,
"subsidy": 312500000,
"swtotal_size": 279582,
"swtotal_weight": 633594,
"swtxs": 558,
"time": 1767120416,
"total_out": 165126881936,
"total_size": 308588,
"total_weight": 749618,
"totalfee": 536551,
"txs": 613,
"utxo_increase": -106,
"utxo_size_inc": -6793,
"utxo_increase_actual": -145,
"utxo_size_inc_actual": -10150
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 7560814756,
"totalbytessent": 20091541555,
"timemillis": 1767120462263,
"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 25 2 27
out 14 0 14 2 4
total 39 2 41
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64659,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64659
}
}
$ halving.sh 930185
=====================================
Bitcoin Block Halving prediction
=====================================
bc=930185
gbt=1231006505
bbt=1767120416
This is average time to mine a block
(1767120416-1231006505)/930185
bts=576.3513007076004154007908
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 9 00:52:27 UTC 2028
-------------------------------------
Next palindrome will be 931139
predicted to happen at this time:
Tue Jan 6 03:30:55 UTC 2026
-------------------------------------
Current mining epoch number is 461.
The next fortnight happens in block
931392 and probably around this time:
Wed Jan 7 20:01:12 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
15 "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
9c20b19b7f506402
22b3de660548c9cebd3cde96bc58dabfe040eee3c3418795cf0d7ff2cdbeb787
0751ba0c7180a2e9
06496735f3dd622c45929c560a4143c3b9cb0f77d58df39dcbbe551cd9aeab2e
d32ca3ba49d49895
e7cfdf4ceaca1bcd68489a642bdcff2210dc0671acad11fc46e0fbd30f947b60
2371473fb2b28efa
46f0cb479985a7a80a83318a846d3ee13beaf6af42257606c472fa4373f44f30
113e80db80216055
a2499503323ae8e01320f9b742b8d3c94c2a7a8e6c4c955007ae98c8c8399233
952c29ffb60124fb
fedbc5eb5ea2f91e7fca713fcdf38757097dc8417958f563979fbb3d8ac7031d
dd286af38f9d906b
9edd40e3d4b9c7f0b201dddd59153a64646f6f2b1239a9b1af7e047c5ed8f4b0
a477ddd11c36d66d
e336a5ebc06736de02f332d1819c9cff8486ec6ce8031e4204dad8156948d329
b84b0a562bc7fbfd
bdc7f19d812f1ccf6ce9b62411bcf7da18bbc3b3a2c84a7f5c9b4b4d06c07601
b0828e8448c11b32
7d1de6aa2c5e8713a4a81397e5d7e612f81b7dc93dc97b75751f3b230c2ec246
0a6273406ddd58d1
e73fa2d80f00797285f0fafa74a359045b5ea9e23b6e03e2b1b701f07bb73b1e
22adb97b40f7438f
8c5709d63693834654ffac79cb080d40c118c55d6f5e4f1148c82153dd8cdb6f
dbccedffb32bddea
721a7095cd87bbd4e66ca94b1b4068690c67376d6fdf4ffaaaad2489b4690a87
2f483f8248b737c5
e9999eef24d3a60ace0eb3f23d85a249b1345155aea66469afe812d5dd513edf
dc293ec37b8a9956
8399fc596248f98b4e9e5fe8a2fec0618046a141529398b7d70ad9a8601db11e
$ niceblack.sh $BH $BC
___ _____ ___ _ ___ ____
/ _ \___ / / _ \ / |( _ ) ___|
| (_) ||_ \| | | | | |/ _ \___ \
\__, |__) | |_| | | | (_) |__) |
/_/____/ \___/ |_|\___/____/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 18ee 6937 .a2a 1f |
| 2. cf98 de.c be84 5883 2f |
| 3. b3c2 e821 2563 16a4 3f |
'=== ==== ==== ==== ==== ==='
ak: e444 95
................ ...||...|||.|||.