# on receiving block 904567 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-07-08T07:23:05Z
# as written in the block header
2025-07-08T07:22:38Z
$ uptime # since last reboot
07:23:04 up 155 days, 19:02, 0 users, load average: 1.35, 1.17, 1.57
$ battery.sh
138%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1510932 kB
$ du -h -d1 .bitcoin/
11.3G .bitcoin/indexes
2.8G .bitcoin/signet
3.8M .bitcoin/wallets
97.7G .bitcoin/blocks
10.8G .bitcoin/chainstate
122.6G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 840.3G 70.2G 92% /
$ bitcoind -version
Bitcoin Core daemon version v29.99.0-5f9c5597106e
Copyright (C) 2009-2025 The Bitcoin Core developers
Please contribute if you find Bitcoin Core useful. Visit
<https://bitcoincore.org/> for further information about the software.
The source code is available from <https://github.com/bitcoin/bitcoin>.
This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or <https://opensource.org/license/MIT>
$ BC=$(bitcoin-cli getblockcount); echo $BC
904567
$ BH=$(bitcoin-cli getblockhash 904567); echo $BH
0000000000000000000046cd5bd99128933ae804103cbe50f48f40ba9d669cd4
$ bitcoin-cli getblockheader 0000000000000000000046cd5bd99128933ae804103cbe50f48f40ba9d669cd4
{
"hash": "0000000000000000000046cd5bd99128933ae804103cbe50f48f40ba9d669cd4",
"confirmations": 1,
"height": 904567,
"version": 797057024,
"versionHex": "2f822000",
"merkleroot": "7f2534a0ef1a83327fbe3d9e7bf429cd7a4cf8229117417e3a335ac4c0529b83",
"time": 1751959358,
"mediantime": 1751954699,
"nonce": 3049845779,
"bits": "17026816",
"target": "0000000000000000000268160000000000000000000000000000000000000000",
"difficulty": 116958512019762.1,
"chainwork": "0000000000000000000000000000000000000000d0925263fd0f762f3221a2d0",
"nTx": 1354,
"previousblockhash": "000000000000000000012c36c31bab410248ce2a5451ca25d59772a7604b61f4"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 46cd 5bd9 9128
933a e8.4 1.3c be5.
f48f 4.ba 9d66 9cd4
$ : 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
904567 sf: e8.4 1.3c be5. 4.ba M
$ : 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 .
904567 sk: 9cd4 75
$ : 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 .
904567 ak: ece9 75
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 25772,
"bytes": 11539625,
"usage": 67565584,
"total_fee": 0.06000000,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
519
## Current epoch estimation is +6.02%
## 1399 of 2016, i.e. 69%, 617 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.870939684033049e+20
$ bitcoin-cli getnetworkhashps 2016 903167
8.366861911869141e+20
$ bitcoin-cli getnetworkhashps 2016 901151
9.04687914735697e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 904567,
"bestblock": "0000000000000000000046cd5bd99128933ae804103cbe50f48f40ba9d669cd4",
"txouts": 167270496,
"bogosize": 13105414302,
"muhash": "96b54c826c79de18951f802c50b226a8bc9b7e167dad2dad1cffc49a804c6722",
"total_amount": 19889053.95415880,
"total_unspendable_amount": 221.04584120,
"block_info": {
"prevout_spent": 3811.17480436,
"coinbase": 3.15422920,
"new_outputs_ex_coinbase": 3811.14557516,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 904567
{
"avgfee": 2160,
"avgfeerate": 2,
"avgtxsize": 936,
"blockhash": "0000000000000000000046cd5bd99128933ae804103cbe50f48f40ba9d669cd4",
"feerate_percentiles": [
2,
2,
2,
3,
4
],
"height": 904567,
"ins": 7011,
"maxfee": 148088,
"maxfeerate": 302,
"maxtxsize": 73807,
"medianfee": 623,
"mediantime": 1751954699,
"mediantxsize": 225,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 150,
"outs": 5788,
"subsidy": 312500000,
"swtotal_size": 632729,
"swtotal_weight": 1459844,
"swtxs": 1208,
"time": 1751959358,
"total_out": 381114557516,
"total_size": 1266748,
"total_weight": 3995920,
"totalfee": 2922920,
"txs": 1354,
"utxo_increase": -1223,
"utxo_size_inc": -90049,
"utxo_increase_actual": -1274,
"utxo_size_inc_actual": -95046
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 6014537694,
"totalbytessent": 13121249176,
"timemillis": 1751959385520,
"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 v29.99.0-5f9c5597106e - server 70016/Satoshi:29.99.0/
ipv4 npr total block libre
in 19 2 21
out 14 0 14 2 4
total 33 2 35
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 63212,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63212
}
}
$ halving.sh 904567
=====================================
Bitcoin Block Halving prediction
=====================================
bc=904567
gbt=1231006505
bbt=1751959358
This is average time to mine a block
(1751959358-1231006505)/904567
bts=575.9134227609201298299298
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Fri Mar 3 17:09:34 UTC 2028
-------------------------------------
Next palindrome will be 905509
predicted to happen at this time:
Mon Jul 14 14:04:28 UTC 2025
-------------------------------------
Current mining epoch number is 448.
The next fortnight happens in block
905184 and probably around this time:
Sat Jul 12 10:04:56 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
16 "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
728a54fb2bae1004
fb990c98e254b9065a14b849c71e63de92249e74b3e432589ae5dcb92352e38d
b3ed804c370d40e7
a48bede8229790e6837a53a0c77257d4971a0afa377ceebe7db2742fb8dbc0b0
d47ff7e823c0fe98
5401cbf99e32046b2baad1de220f62450eee22064561908c4af977587d4bf1b4
53bb91ceec877d95
f10c2f050891aa1468f7884dd304809843cc837621e47425d8cb24e7354d2e44
c7e3e2a02f2ba24b
2e5a47fe645cc5947a5d30bea3f360d0f0a63f8582a13586b6adf4cb9e298d7b
807efab60edcf18e
561b262613400c60ba780a0e0ead671be7d829869d42072be96745284daa23a1
06958821f75a85e7
613a5e798ccc08f94c468cb30f5f49d254fca9ccd180e8931e86a765933808c9
b580ea4cc1766007
e37f3e383b2eb3e6961aec86fc5dbf124d4ed04f9751c99f86c6ce09314a9325
716217be0b59d813
1b135df1a1353f7a20f1f9ec28bbec8a477b96fc1ebb44da7eb60b09faf65475
9dd1dd68fb58b439
49ab9de4311bdcbdec5193c8f88563958f0e21406a86e40a51b3ec26ac8ade22
a6b9a6f6f661268a
38312b5d64b69979205b0ceebc4eed0119446194d842adae1f50b5591550c5c8
96a5c538c60619ef
f47b358e29969196aff108ad28310e25ef44f93203ab395cdc6fb5a951c6ecd2
2f8eec2e560370dd
d0a02fa34216244407d293e79c19917486606ca258389fbdaee10e31b762c2aa
53b6e2c94ec995b6
af78cf99d979b8df440959755686a0b76126f7c1cedd6f6e7e8e4f8f2921251e
333d0c7a4ad5d783
7879279b163c4ab919acea16ae434fb5c84cf2091b479e237926ef354722a7bc
e7cf12860237795d
ea464fdc33798343c911c76c650a42609a0e350722a6c4da0eeba9f5465801a1
$ niceblack.sh $BH $BC
_ _ _
| |__| |___ __| |__
| '_ \ / _ \/ _| / /
|_.__/_\___/\__|_\_\
___ __ _ _ ___ ______
/ _ \/ \| | || __| / /__ |
\_, / () |_ _|__ \/ _ \/ /
/_/ \__/ |_||___/\___/_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 46cd 5bd9 9128 1f |
| 2. 933a e8.4 1.3c be5. 2f |
| 3. f48f 4.ba 9d66 9cd4 3f |
'=== ==== ==== ==== ==== ==='
ak: ece9 75