# on receiving block 920278 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-10-22T16:09:26Z
# as written in the block header
2025-10-22T16:09:02Z
$ uptime # since last reboot
16:09:26 up 70 days, 2:00, 0 users, load average: 0.89, 1.96, 1.92
$ battery.sh
56%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2238540 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.7G .bitcoin/indexes
3.5G .bitcoin/signet
41.7M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
11.0G .bitcoin/chainstate
125.5G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 831.0G 79.5G 91% /
$ 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
920278
$ BH=$(bitcoin-cli getblockhash 920278); echo $BH
00000000000000000000743a4375444bedcfe2ebd211cc98199bf0ed468bb4ad
$ bitcoin-cli getblockheader 00000000000000000000743a4375444bedcfe2ebd211cc98199bf0ed468bb4ad
{
"hash": "00000000000000000000743a4375444bedcfe2ebd211cc98199bf0ed468bb4ad",
"confirmations": 1,
"height": 920278,
"version": 738050048,
"versionHex": "2bfdc000",
"merkleroot": "091bc1a9d22e6b01f57a4ec8324f7993773754095a4308991058b9d5e041e459",
"time": 1761149342,
"mediantime": 1761146044,
"nonce": 1055612552,
"bits": "1701eb21",
"target": "00000000000000000001eb210000000000000000000000000000000000000000",
"difficulty": 146716052770107.5,
"chainwork": "0000000000000000000000000000000000000000edef68bc2cc2a5aa30fb74a9",
"nTx": 890,
"previousblockhash": "0000000000000000000052cc27f9841ee5f898e1c9aa7fda2b268735c1a6b041"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 743a 4375 444b
edcf e2eb d211 cc98
199b f.ed 468b b4ad
$ : 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
920278 sf: f.ed b4ad
$ : 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 .
920278 sk: b4ad a5
$ : 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 .
920278 ak: 79f9 a5
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 50028,
"bytes": 26363507,
"usage": 153668576,
"total_fee": 0.03253297,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
122
## Current epoch estimation is +5.57%
## 982 of 2016, i.e. 48%, 1034 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.108484616312174e+21
$ bitcoin-cli getnetworkhashps 2016 919295
1.049978271078539e+21
$ bitcoin-cli getnetworkhashps 2016 917279
1.079369922029227e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 920278,
"bestblock": "00000000000000000000743a4375444bedcfe2ebd211cc98199bf0ed468bb4ad",
"txouts": 166415780,
"bogosize": 13033632909,
"muhash": "19a0751c951ab32fe4b72996176d950d4e972fdee6624ce20f1dd0ae6aa00f4d",
"total_amount": 19938141.78957286,
"total_unspendable_amount": 230.08542714,
"block_info": {
"prevout_spent": 2403.89449724,
"coinbase": 3.13136884,
"new_outputs_ex_coinbase": 2403.88812840,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 920278
{
"avgfee": 716,
"avgfeerate": 2,
"avgtxsize": 440,
"blockhash": "00000000000000000000743a4375444bedcfe2ebd211cc98199bf0ed468bb4ad",
"feerate_percentiles": [
1,
1,
2,
3,
4
],
"height": 920278,
"ins": 1985,
"maxfee": 66112,
"maxfeerate": 73,
"maxtxsize": 71041,
"medianfee": 333,
"mediantime": 1761146044,
"mediantxsize": 223,
"minfee": 99,
"minfeerate": 1,
"mintxsize": 150,
"outs": 2038,
"subsidy": 312500000,
"swtotal_size": 364039,
"swtotal_weight": 819214,
"swtxs": 790,
"time": 1761149342,
"total_out": 240388812840,
"total_size": 391612,
"total_weight": 929506,
"totalfee": 636884,
"txs": 890,
"utxo_increase": 53,
"utxo_size_inc": 5124,
"utxo_increase_actual": -21,
"utxo_size_inc_actual": -1561
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 1797968536,
"totalbytessent": 4161226065,
"timemillis": 1761149367153,
"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 29 2 31
out 14 0 14 2 4
total 43 2 45
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64737,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64737
}
}
$ halving.sh 920278
=====================================
Bitcoin Block Halving prediction
=====================================
bc=920278
gbt=1231006505
bbt=1761149342
This is average time to mine a block
(1761149342-1231006505)/920278
bts=576.0675153947878849783598
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Sun Mar 5 14:06:12 UTC 2028
-------------------------------------
Next palindrome will be 921129
predicted to happen at this time:
Tue Oct 28 08:19:35 UTC 2025
-------------------------------------
Current mining epoch number is 456.
The next fortnight happens in block
921312 and probably around this time:
Wed Oct 29 13:36:35 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
24 "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
2738ea9516c38945
47045d52640a638fa610857af9231211c5a61941cd902cea44a93c4ec3bfd9e6
a67c90b4e08696ec
ac3df04cfaa9b52b8e831c65f100d03a877992b31df8efe80a77419375c67fef
ec8c3b49ca6f829f
d328b02cf675b256047cd6f4910a89c86327318b363d15d154f1c65b2ebcdeb7
e7bb3d482e5189fd
d479b520dc6e37f43311e12a18660047afc526728b4676d33cec2a9d1cddc431
7d86c05aacd07b59
701b6529a15b45dde128dd862bc7a804cb1153db1d3dee933dd54f2d522f93eb
7b9a1ca6d304d08a
39e8e2f90685918aa01d1aaf3a4c10d0f68f5ce34fec5ab577fc4bd327f94dd9
92e0e9b5aa78e16a
92222f1fb3e9beaf51693fa93ecd6d8d2616802c8e8a9179db41082386df725f
ceec243f9226b854
7c529895025a64714a858d73b38eff00a7cd91c97ffd95568ca32c98ad00c791
d97f3970b0902308
871984c4485963debdec11480ddd60294326281e2fc19a983e40f64e30f93c89
424fb0ece87b423a
2cf965fb761fa855935bf02fabeafd60bbb4a4583d650b487ebfe81df7cee182
b8c109ac3521a679
473215624692621a5b5f36c8040238d181ca94fd1ef0818beb546e36373436fd
19b1095cbf60ead8
4eb4d298ce12638286fbdea03f42b48fd32b478b001a202a417afdbb2b8a4950
6fc7e84a5d64615a
63f15b08a2410f46a893874c703715b010842d9fa84f1a561a7e6b7b42a15dcc
04aa07772c9733eb
dd613af085f9c9aac3a52e984051da05383468695404b89d76784910cc700bcf
a7e964f237149cc6
66907e779f6cd0fcd6492f5340647fc210cb2b62c93133252dcd9fe538d1ad9b
50218d3ae77150a5
d249c9df6ff72d5b6fd98ed8709af00ec8b369fd063ddd58740a5a59791914be
1af45e978d97c204
ea73e537a459cb599c84b94429cdabaf98fc75619c2663be67351143025fafdc
e97211e49d86201c
756186b5296ed7048eb929440addda0eea896b027f224b0db7b5e63116e3ff96
c8ddce40c5095f39
b1a71b54dd519804d061f7790b33b9653d63b7016a1e9b22b0507efd4c9202ad
2c982c27b8cca00b
02e6490261e4db66da0fa67d0b9fd0073cd26253ef5d58b92f4bcf4f73abf8d7
2a9e24951df8c55d
b39d77e24d38b491065aeff5fe235eb9804d8e9b4a2b790e22fabd37d92afa59
9f90a75b73b1015a
c6cf42d48b03f0a7266842747ff1333b1bf01d7f99baeee33fab3290dfdef2c6
5704066a645f2ea2
2a5697edc481c18d4abe5d9e0acaf3f34490fd0ae76b377c630b07dbba5d03eb
a5f3de37b081032e
77531b6c8fdb17f1ad2a3d75358dbef5c5024d3f285f3b6237d2cab25800eea3
$ niceblack.sh $BH $BC
___ ___ ___ ___ ______ ___
/ _ \__ \ / _ \ |__ \____ / _ \
| (_) | ) | | | | ) | / / (_) |
\__, |/ /| | | | / / / / > _ <
/ // /_| |_| | / /_ / / | (_) |
/_/|____|\___/ |____/_/ \___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 743a 4375 444b 1f |
| 2. edcf e2eb d211 cc98 2f |
| 3. 199b f.ed 468b b4ad 3f |
'=== ==== ==== ==== ==== ==='
ak: 79f9 a5