# on receiving block 923640 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-11-14T20:46:52Z
# as written in the block header
2025-11-14T20:46:44Z
$ uptime # since last reboot
20:46:52 up 93 days, 6:37, 0 users, load average: 4.71, 4.39, 2.65
$ battery.sh
56%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2147400 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.8G .bitcoin/indexes
3.6G .bitcoin/signet
41.8M .bitcoin/wallets
97.8G .bitcoin/blocks
18.6M .bitcoin/regtest
10.8G .bitcoin/chainstate
125.6G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 833.0G 77.4G 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
923640
$ BH=$(bitcoin-cli getblockhash 923640); echo $BH
000000000000000000014e85c51681b23ac2ee381cf300ed54009d4b7bb4ecf1
$ bitcoin-cli getblockheader 000000000000000000014e85c51681b23ac2ee381cf300ed54009d4b7bb4ecf1
{
"hash": "000000000000000000014e85c51681b23ac2ee381cf300ed54009d4b7bb4ecf1",
"confirmations": 1,
"height": 923640,
"version": 536895488,
"versionHex": "20006000",
"merkleroot": "3b99aef61a060cf515a614c5150de905f726015b142d06bd75096f2eb014b36f",
"time": 1763153204,
"mediantime": 1763150716,
"nonce": 3255542999,
"bits": "1701d936",
"target": "00000000000000000001d9360000000000000000000000000000000000000000",
"difficulty": 152271405447597.4,
"chainwork": "0000000000000000000000000000000000000000f5105327490aee70a08501df",
"nTx": 2135,
"previousblockhash": "00000000000000000000143885255caf7410ce7ca737d47ae8e268360f8020e7"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 4e85 c516 81b2
3ac2 ee38 1cf3 ..ed
54.. 9d4b 7bb4 ecf1
$ : 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
923640 sf: ...1 ..ed 54.. ecf1
$ : 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 .
923640 sk: ecf1 94
$ : 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 .
923640 ak: 9cca 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 62449,
"bytes": 37824722,
"usage": 213661248,
"total_fee": 0.06904883,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
182
## Current epoch estimation is +0.33%
## 312 of 2016, i.e. 15%, 1704 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.093369687656886e+21
$ bitcoin-cli getnetworkhashps 2016 923327
1.089721987248796e+21
$ bitcoin-cli getnetworkhashps 2016 921311
1.11405143592317e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 923640,
"bestblock": "000000000000000000014e85c51681b23ac2ee381cf300ed54009d4b7bb4ecf1",
"txouts": 166601499,
"bogosize": 13044709669,
"muhash": "a1547df2e828300e1f92844928911d37462b505279f14f5f3aa1982aebfa1b21",
"total_amount": 19948648.03847564,
"total_unspendable_amount": 230.08652436,
"block_info": {
"prevout_spent": 5527.18535475,
"coinbase": 3.14615727,
"new_outputs_ex_coinbase": 5527.16419746,
"unspendable": 0.00000002,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000002,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 923640
{
"avgfee": 991,
"avgfeerate": 2,
"avgtxsize": 703,
"blockhash": "000000000000000000014e85c51681b23ac2ee381cf300ed54009d4b7bb4ecf1",
"feerate_percentiles": [
1,
1,
1,
2,
3
],
"height": 923640,
"ins": 8378,
"maxfee": 51336,
"maxfeerate": 150,
"maxtxsize": 110812,
"medianfee": 322,
"mediantime": 1763150716,
"mediantxsize": 224,
"minfee": 100,
"minfeerate": 1,
"mintxsize": 150,
"outs": 5466,
"subsidy": 312500000,
"swtotal_size": 1111024,
"swtotal_weight": 2427913,
"swtxs": 1916,
"time": 1763153204,
"total_out": 552716419748,
"total_size": 1502035,
"total_weight": 3991957,
"totalfee": 2115727,
"txs": 2135,
"utxo_increase": -2912,
"utxo_size_inc": -214258,
"utxo_increase_actual": -3034,
"utxo_size_inc_actual": -224436
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 7569619437,
"totalbytessent": 19530589077,
"timemillis": 1763153213408,
"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 39 2 41
out 14 0 14 2 4
total 53 2 55
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 68267,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 68267
}
}
$ halving.sh 923640
=====================================
Bitcoin Block Halving prediction
=====================================
bc=923640
gbt=1231006505
bbt=1763153204
This is average time to mine a block
(1763153204-1231006505)/923640
bts=576.1401875837040581784481
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Mon Mar 6 11:17:58 UTC 2028
-------------------------------------
Next palindrome will be 924429
predicted to happen at this time:
Thu Nov 20 03:02:58 UTC 2025
-------------------------------------
Current mining epoch number is 458.
The next fortnight happens in block
925344 and probably around this time:
Wed Nov 26 05:29:06 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
34 "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
aadd5da680e7089e
23317222ae516873a503abcf485422e9d6b1e7bf865825debd584c5332d58189
54340b8f4c9ff9df
06140c3c512d242bb90ee9ec7d1d8632c6d357b4b355da389e44bb05c51a4b47
f673b39e6f930954
e28801b591b423ab25416ea8f46c944f8f2953ab5294a69a19fcba2b03235d48
34ed7affa12ff08c
851bd454e53dd07159a9ef6768e7b8cd95b1bc3c648feee0201abd542f1e4f6c
49e713f75f958e6d
4b1df37732987d75a2391a078ec54ee793e78760733dd9764b06eb46cf660fb9
7715c559f3e6ba8a
d4f45d92c678deaab9dcc70badc6229fc1791614e7467ea3fc028d6c90521744
2f483f8248b737c5
d2c0cff107fead4296eff1883c5a612e0222496dede97bc0c667bded713ee178
f8dce48b5e7634c5
69d7ebf212d01012746cb2a290a00e9744ff6db5ec110064dc269adfe825358d
fb325f96906155fb
f561478f5a32838ab7307eb5110e2452e296fbe577bd12735f7b169b74640bba
952c29ffb60124fb
606caffdc016b19b792a6c7a466befdbbd0fa31a1fd8ec9c48bcbd9ff7e5bc74
508e94c169890e79
e8d7f26807f1f27c403e326f514d7f5c58af94cc240250cc2a5a286fca4f8c5b
db589861052ca057
e16cb05c28207f990a481309f6dcec1759dc5cdb93a98cbed395833e152c74dc
e46f044eb556eaa8
3153d585d605443be77e4a2f3140e8f40b9ef722bd81e375f19e3c4232a2de6a
179a91cd079d4652
43985e50de839d5e9d5a82d8275e38efed8d41674d1018716da0812e4a42016d
9fe583bbea09f4dc
852fdb14de734ed887c1d258387dbfd6c3e212ad10319e84b027700199a2d2d1
b84b0a562bc7fbfd
8938af3540c9b324b08d6fa44582660eba09508858d428efd523f809d1caf1f0
dc98bbd869293e15
deca36411e668dcfd7556637daaf61213bc3e85e086fd871d53efcfb2a976cd5
c05280db94deec87
cf1e18f315c9aa7a6aaff7c8a05b624b54dda95df64ba687f4331e0616c9fb7f
906ceebe53e35a2f
48c8047aae42322306847632fd552a914e4af4783c059ad65c6b94dda262f70d
d95ef954aeacf71e
cd9ad7fde80a1f87357832a22175141d873df1e9ca8c0bdcb3ed27e262f01846
ad0016d10f8c2868
faea8602f09803f211eb93bc9422104c4b99aa635af8706fc363aa8718be3917
30a939c14eac74e1
9d358662095debcb4dfae10d11160c54e254e2547638db27d396f317a0d3a061
60b3ab4d7aaddb74
6e719ee80eb13c58e686ccf4d87c292a53037d315d3804d5dd772b8c904cfa21
dae6964d97b11f13
2534843e4a76ea08d32148a74cfaaa2fee93461dba1918533b7cd0aa0a11e3a0
2a00a1d66a16e995
07ccc6e93f97a477d7bb6acd1d1c5e599531da76dea7361c9e4183a1b3ee5320
547301fa4c77f21b
5a10bc78c0f8c4aa646c01c887e06bebe68a20a3724aede9e0028e9d4e939369
bed19b304dd5db98
10fd7b37c6f974df93cc8298a3edb73d15061ff340d83a8a39e2701311713af3
15b022034a919ba7
1e3c23e6d528c89d1341e9e16d4106f54f1badec9e02cb364f81c889404d935f
19bb83f14a0e9bc3
70736dc37ae1799822d086d19ddb203271a0b095df860816a248b9ac98091659
ce908886ccdc19c3
fa7ab813db84567ed0ca04f371d798b7c04cb1128ebf07505f84b4f1c2e30280
771956dd4733e3dc
5d9e54f96d346e7cd09dd7f7b47d0d9936f7909257daf7f9dcdfb0b0745178bd
f853f13c1e72b35e
88da014abfb6edba8a2b095e8855ff80846d8117b63a284840f03ab2b1b44318
81c395c1679114cc
be418f49bd69db8acb9ed038edafce9499280256b0da86384e3922710372e40f
c6f584a19875a16a
586673ce67b3b789b78b1086d182bfea95efcd91cbec129c9279024d355575e8
$ niceblack.sh $BH $BC
____ ___ _____
/ __ \__ \|__ /
/ /_/ /_/ / /_ <
\__, / __/___/ /
/____/____/____/
_____ __ __ ____
/ ___// // / / __ \
/ __ \/ // /_/ / / /
/ /_/ /__ __/ /_/ /
\____/ /_/ \____/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 4e85 c516 81b2 1f |
| 2. 3ac2 ee38 1cf3 ..ed 2f |
| 3. 54.. 9d4b 7bb4 ecf1 3f |
'=== ==== ==== ==== ==== ==='
ak: 9cca 94