# on receiving block 930227 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-31T04:37:57Z
# as written in the block header
2025-12-31T04:37:30Z
$ uptime # since last reboot
04:37:57 up 139 days, 14:28, 0 users, load average: 1.12, 0.93, 1.17
$ battery.sh
50%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1919024 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.9G .bitcoin/indexes
3.9G .bitcoin/signet
41.8M .bitcoin/wallets
97.8G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.8G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 834.4G 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
930227
$ BH=$(bitcoin-cli getblockhash 930227); echo $BH
00000000000000000000863cb132d5a78215cc21aebfab273ef0fbe05b0dc5d3
$ bitcoin-cli getblockheader 00000000000000000000863cb132d5a78215cc21aebfab273ef0fbe05b0dc5d3
{
"hash": "00000000000000000000863cb132d5a78215cc21aebfab273ef0fbe05b0dc5d3",
"confirmations": 1,
"height": 930227,
"version": 671088640,
"versionHex": "28000000",
"merkleroot": "f4e9755c883b812d41cc3c0523574b510e263c9d44338e128f88b5917c44bb10",
"time": 1767155850,
"mediantime": 1767149655,
"nonce": 3330772167,
"bits": "1701e605",
"target": "00000000000000000001e6050000000000000000000000000000000000000000",
"difficulty": 148258433855481.3,
"chainwork": "000000000000000000000000000000000000000102bd2d6912416a79c5908610",
"nTx": 3052,
"previousblockhash": "00000000000000000000b574927c76db8e5a2c6d9ab450c5c8f96f1073273a94"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 863c b132 d5a7
8215 cc21 aebf ab27
3ef. fbe. 5b.d c5d3
$ : 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
930227 sf: 3ef. fbe. 5b.d c5d3
$ : 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 .
930227 sk: c5d3 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 .
930227 ak: f2cb 85
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 35050,
"bytes": 21738344,
"usage": 123034960,
"total_fee": 0.04482838,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
206
## Current epoch estimation is -0.5%
## 851 of 2016, i.e. 42%, 1165 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.05586551275357e+21
$ bitcoin-cli getnetworkhashps 2016 929375
1.06126766979058e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 930227,
"bestblock": "00000000000000000000863cb132d5a78215cc21aebfab273ef0fbe05b0dc5d3",
"txouts": 165653986,
"bogosize": 12978383454,
"muhash": "a26fcc0624cc2069bf985da17a5db5c27e4a41be1c3ad61c9be14d4871fd7e09",
"total_amount": 19969232.41002558,
"total_unspendable_amount": 230.08997442,
"block_info": {
"prevout_spent": 12594.75628616,
"coinbase": 3.16220488,
"new_outputs_ex_coinbase": 12594.71908127,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 930227
{
"avgfee": 1219,
"avgfeerate": 3,
"avgtxsize": 506,
"blockhash": "00000000000000000000863cb132d5a78215cc21aebfab273ef0fbe05b0dc5d3",
"feerate_percentiles": [
2,
2,
3,
3,
4
],
"height": 930227,
"ins": 7694,
"maxfee": 314330,
"maxfeerate": 480,
"maxtxsize": 97684,
"medianfee": 551,
"mediantime": 1767149655,
"mediantxsize": 225,
"minfee": 111,
"minfeerate": 1,
"mintxsize": 150,
"outs": 8680,
"subsidy": 312500000,
"swtotal_size": 1345436,
"swtotal_weight": 3195974,
"swtxs": 2807,
"time": 1767155850,
"total_out": 1259471908128,
"total_size": 1544364,
"total_weight": 3991686,
"totalfee": 3720488,
"txs": 3052,
"utxo_increase": 986,
"utxo_size_inc": 68932,
"utxo_increase_actual": 900,
"utxo_size_inc_actual": 60103
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 7668079221,
"totalbytessent": 20407572179,
"timemillis": 1767155878014,
"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 28 2 30
out 14 0 14 2 4
total 42 2 44
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64740,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64740
}
}
$ halving.sh 930227
=====================================
Bitcoin Block Halving prediction
=====================================
bc=930227
gbt=1231006505
bbt=1767155850
This is average time to mine a block
(1767155850-1231006505)/930227
bts=576.3633700555132720150328
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 9 04:23:39 UTC 2028
-------------------------------------
Next palindrome will be 931139
predicted to happen at this time:
Tue Jan 6 06:38:13 UTC 2026
-------------------------------------
Current mining epoch number is 461.
The next fortnight happens in block
931392 and probably around this time:
Wed Jan 7 23:08:33 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
22adb97b40f7438f
8c5709d63693834654ffac79cb080d40c118c55d6f5e4f1148c82153dd8cdb6f
dbccedffb32bddea
721a7095cd87bbd4e66ca94b1b4068690c67376d6fdf4ffaaaad2489b4690a87
2f483f8248b737c5
e9999eef24d3a60ace0eb3f23d85a249b1345155aea66469afe812d5dd513edf
dc293ec37b8a9956
8399fc596248f98b4e9e5fe8a2fec0618046a141529398b7d70ad9a8601db11e
e7bb3d482e5189fd
9f358481c9dd76a1ae96cde2a3adf931936e171cdf8fea7f862974dbf18e30ef
$ niceblack.sh $BH $BC
| | |
_ \ | _ \ _| | /
_.__/_|\___/\__|_\_\
_ \__ / \_ )_ )__ /
\_ / _ \ ( | / / /
_/ ___/\__/___|___| _/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 863c b132 d5a7 1f |
| 2. 8215 cc21 aebf ab27 2f |
| 3. 3ef. fbe. 5b.d c5d3 3f |
'=== ==== ==== ==== ==== ==='
ak: f2cb 85
................ |....||...||||..