# on receiving block 920097 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-10-21T11:33:34Z
# as written in the block header
2025-10-21T11:33:17Z
$ uptime # since last reboot
11:33:34 up 68 days, 21:24, 0 users, load average: 1.57, 2.15, 1.71
$ battery.sh
54%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2347524 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.7G .bitcoin/indexes
3.5G .bitcoin/signet
41.6M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.7G .bitcoin/chainstate
125.2G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 830.6G 79.8G 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
920097
$ BH=$(bitcoin-cli getblockhash 920097); echo $BH
0000000000000000000186bb612a5ed82264f7424857da34911dfb8ccff928a3
$ bitcoin-cli getblockheader 0000000000000000000186bb612a5ed82264f7424857da34911dfb8ccff928a3
{
"hash": "0000000000000000000186bb612a5ed82264f7424857da34911dfb8ccff928a3",
"confirmations": 1,
"height": 920097,
"version": 551133184,
"versionHex": "20d9a000",
"merkleroot": "71823ab3e8572e82de83c0e8c35028480b493efaedf93ddc75d81a7053cd089d",
"time": 1761046397,
"mediantime": 1761043417,
"nonce": 511572384,
"bits": "1701eb21",
"target": "00000000000000000001eb210000000000000000000000000000000000000000",
"difficulty": 146716052770107.5,
"chainwork": "0000000000000000000000000000000000000000ed91102f1885f663124edade",
"nTx": 4228,
"previousblockhash": "000000000000000000001e61130bf004e017dd4ff1ffd0dd2f6d893f923cb662"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 86bb 612a 5ed8
2264 f742 4857 da34
911d fb8c cff9 28a3
$ : 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
920097 sf: ...1 28a3
$ : 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 .
920097 sk: 28a3 b4
$ : 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 .
920097 ak: 73c6 b4
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 43531,
"bytes": 24157967,
"usage": 139895952,
"total_fee": 0.02817430,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
115
## Current epoch estimation is +4.65%
## 801 of 2016, i.e. 39%, 1215 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.098905520947071e+21
$ bitcoin-cli getnetworkhashps 2016 919295
1.049978271078539e+21
$ bitcoin-cli getnetworkhashps 2016 917279
1.079369922029227e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 920097,
"bestblock": "0000000000000000000186bb612a5ed82264f7424857da34911dfb8ccff928a3",
"txouts": 166419623,
"bogosize": 13034066922,
"muhash": "36d64ddb41298aa04293cba4d25312af2ab22b5512be1231fff2040fa9f6a378",
"total_amount": 19937576.16461166,
"total_unspendable_amount": 230.08538834,
"block_info": {
"prevout_spent": 1858.26574946,
"coinbase": 3.13672301,
"new_outputs_ex_coinbase": 1858.25402645,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 920097
{
"avgfee": 277,
"avgfeerate": 1,
"avgtxsize": 407,
"blockhash": "0000000000000000000186bb612a5ed82264f7424857da34911dfb8ccff928a3",
"feerate_percentiles": [
0,
0,
0,
1,
2
],
"height": 920097,
"ins": 8046,
"maxfee": 35250,
"maxfeerate": 250,
"maxtxsize": 107122,
"medianfee": 42,
"mediantime": 1761043417,
"mediantxsize": 367,
"minfee": 21,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9894,
"subsidy": 312500000,
"swtotal_size": 1642062,
"swtotal_weight": 3677010,
"swtxs": 4048,
"time": 1761046397,
"total_out": 185825402645,
"total_size": 1720754,
"total_weight": 3991778,
"totalfee": 1172301,
"txs": 4228,
"utxo_increase": 1848,
"utxo_size_inc": 125953,
"utxo_increase_actual": -1179,
"utxo_size_inc_actual": -85263
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 1256389143,
"totalbytessent": 2950847078,
"timemillis": 1761046415237,
"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": 64851,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64851
}
}
$ halving.sh 920097
=====================================
Bitcoin Block Halving prediction
=====================================
bc=920097
gbt=1231006505
bbt=1761046397
This is average time to mine a block
(1761046397-1231006505)/920097
bts=576.0689535245158667881030
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Sun Mar 5 14:31:22 UTC 2028
-------------------------------------
Next palindrome will be 921129
predicted to happen at this time:
Tue Oct 28 08:41:40 UTC 2025
-------------------------------------
Current mining epoch number is 456.
The next fortnight happens in block
921312 and probably around this time:
Wed Oct 29 13:58:40 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
25 "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
9fd5bbcdb6f5d9dd
d6ab081bb438703e49af19786604a4a67c290eb11d218cbdb13960983bb4d309
2738ea9516c38945
47045d52640a638fa610857af9231211c5a61941cd902cea44a93c4ec3bfd9e6
a67c90b4e08696ec
ac3df04cfaa9b52b8e831c65f100d03a877992b31df8efe80a77419375c67fef
ec8c3b49ca6f829f
d328b02cf675b256047cd6f4910a89c86327318b363d15d154f1c65b2ebcdeb7
e7bb3d482e5189fd
d479b520dc6e37f43311e12a18660047afc526728b4676d33cec2a9d1cddc431
7d86c05aacd07b59
701b6529a15b45dde128dd862bc7a804cb1153db1d3dee933dd54f2d522f93eb
7b9a1ca6d304d08a
39e8e2f90685918aa01d1aaf3a4c10d0f68f5ce34fec5ab577fc4bd327f94dd9
92e0e9b5aa78e16a
92222f1fb3e9beaf51693fa93ecd6d8d2616802c8e8a9179db41082386df725f
799f2093a33fb40c
9207609a325d9b28a14ad38523891abe8699f2b221995cd972f628f27313608e
1a21ddf09e19ae5a
56cf938b210f8ffd732806270620690f3569bbbc57ce7aa1e1d55abe7546790c
ceec243f9226b854
7c529895025a64714a858d73b38eff00a7cd91c97ffd95568ca32c98ad00c791
d97f3970b0902308
871984c4485963debdec11480ddd60294326281e2fc19a983e40f64e30f93c89
424fb0ece87b423a
2cf965fb761fa855935bf02fabeafd60bbb4a4583d650b487ebfe81df7cee182
b8c109ac3521a679
473215624692621a5b5f36c8040238d181ca94fd1ef0818beb546e36373436fd
19b1095cbf60ead8
4eb4d298ce12638286fbdea03f42b48fd32b478b001a202a417afdbb2b8a4950
6fc7e84a5d64615a
63f15b08a2410f46a893874c703715b010842d9fa84f1a561a7e6b7b42a15dcc
04aa07772c9733eb
dd613af085f9c9aac3a52e984051da05383468695404b89d76784910cc700bcf
a7e964f237149cc6
66907e779f6cd0fcd6492f5340647fc210cb2b62c93133252dcd9fe538d1ad9b
2f483f8248b737c5
73a0b8f2b7f7f5f7a47975425cbe97b3000201620edf34859eb6daae1fc592f7
50218d3ae77150a5
d249c9df6ff72d5b6fd98ed8709af00ec8b369fd063ddd58740a5a59791914be
1af45e978d97c204
ea73e537a459cb599c84b94429cdabaf98fc75619c2663be67351143025fafdc
e97211e49d86201c
756186b5296ed7048eb929440addda0eea896b027f224b0db7b5e63116e3ff96
c8ddce40c5095f39
b1a71b54dd519804d061f7790b33b9653d63b7016a1e9b22b0507efd4c9202ad
2c982c27b8cca00b
02e6490261e4db66da0fa67d0b9fd0073cd26253ef5d58b92f4bcf4f73abf8d7
81a377fed9245a59
8cc466741e3718ad41dadce8dd07ff7ee9206083345f746a5187bc19a5383532
$ niceblack.sh $BH $BC
##### ##### ###
# # # # # #
# # # # #
###### ##### # #
# # # #
# # # # #
##### ####### ###
### ##### #######
# # # # # #
# # # # #
# # ###### #
# # # #
# # # # #
### ##### #
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 86bb 612a 5ed8 1f |
| 2. 2264 f742 4857 da34 2f |
| 3. 911d fb8c cff9 28a3 3f |
'=== ==== ==== ==== ==== ==='
ak: 73c6 b4