# on receiving block 871303 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2024-11-21T06:41:43Z
# as written in the block header
2024-11-21T06:41:26Z
$ uptime # since last reboot
06:41:43 up 108 days, 23:59, 0 users, load average: 0.37, 0.38, 0.34
$ battery.sh
95%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1501364 kB
$ du -h -d1 .bitcoin/
2.2G .bitcoin/testnet4
10.7G .bitcoin/indexes
3.2G .bitcoin/signet
33.6M .bitcoin/wallets
97.7G .bitcoin/blocks
11.9G .bitcoin/chainstate
15.3G .bitcoin/testnet3
141.1G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 807.3G 103.1G 89% /
$ bitcoind --version
Bitcoin Core version v28.99.0-4835bba2cb13
Copyright (C) 2009-2024 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/licenses/MIT>
$ BC=$(bitcoin-cli getblockcount); echo $BC
871303
$ BH=$(bitcoin-cli getblockhash 871303); echo $BH
000000000000000000017c688291f2467e5e07c14fb7f978392e441bd04de0e9
$ bitcoin-cli getblockheader $BH
{
"hash": "0000000000000000000177e5df18154411cf2f9ea4fa4e3f7fbbed9b6fc75e0d",
"confirmations": 1,
"height": 855601,
"version": 537083904,
"versionHex": "20034000",
"merkleroot": "1f3f3c3fc7b44de7c79df750712a334ea83dbb10dd47c57a789d6dd049b432c8",
"time": 1722919934,
"mediantime": 1722917249,
"nonce": 2205577874,
"bits": "17031abe",
"difficulty": 90666502495565.78,
"chainwork": "0000000000000000000000000000000000000000876c314d1b2244b4226cab8c",
"nTx": 1,
"previousblockhash": "00000000000000000001187df2cd86998c727058ce11aa92b2fc97abb7816728"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 7c68 8291 f246
7e5e .7c1 4fb7 f978
392e 441b d.4d e.e9
$ : 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
871303 sf: ...1 .7c1 d.4d e.e9
$ : Following is the shortkode
$ last=${BH#${BH%????}}
$ nz=$(echo $BH | fold -w 4 \
| grep -cE '^[^0]{4}$')
$ z=$(echo $BH | fold -w 4 \
| grep -c '^0000$')
$ printf "%s sk: " $BC
$ printf "%s %x" $last \
$(((${nz}<<4)+${z})) \
| tr "0\n" ". "; echo
871303 sk: e.e9 84
$ niceblack.sh $BH $BC
_ _ _
| |__| |___ __| |__
| '_ \ / _ \/ _| / /
|_.__/_\___/\__|_\_\
___ ____ _ ____ __ ____
( _ )__ / |__ // \__ /
/ _ \ / /| ||_ \ () |_ \
\___//_/ |_|___/\__/___/
,--- .123 4567 89ab cdef ---,
| .. .... .... .... .... .f |
| 1. ...1 7c68 8291 f246 1f |
| 2. 7e5e .7c1 4fb7 f978 2f |
| 3. 392e 441b d.4d e.e9 3f |
'=== ==== ==== ==== ==== ==='
sk: e.e9 84
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 73965,
"bytes": 44454473,
"usage": 244458176,
"total_fee": 0.64054514,
"maxmempool": 300000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
## Current epoch estimation is +1.64%
## 391 of 2016, i.e. 19%, 1625 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
7.439608515604278e+20
$ bitcoin-cli getnetworkhashps 2016 870911
7.319322521948825e+20
$ bitcoin-cli getnetworkhashps 2016 868895
7.275582664903283e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 871303,
"bestblock": "000000000000000000017c688291f2467e5e07c14fb7f978392e441bd04de0e9",
"txouts": 186367924,
"bogosize": 14437708408,
"muhash": "91073d1f92b771807a8e7135473d65ada670e640c9f68a6d0bd02365126a97c1",
"total_amount": 19785105.48822506,
"total_unspendable_amount": 219.51177494,
"block_info": {
"prevout_spent": 3829.98269827,
"coinbase": 3.23310485,
"new_outputs_ex_coinbase": 3829.87459341,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 871303
{
"avgfee": 2776,
"avgfeerate": 10,
"avgtxsize": 367,
"blockhash": "000000000000000000017c688291f2467e5e07c14fb7f978392e441bd04de0e9",
"feerate_percentiles": [
3,
4,
5,
8,
26
],
"height": 871303,
"ins": 7788,
"maxfee": 687767,
"maxfeerate": 469,
"maxtxsize": 67915,
"medianfee": 559,
"mediantime": 1732169911,
"mediantxsize": 192,
"minfee": 186,
"minfeerate": 1,
"mintxsize": 150,
"outs": 8552,
"subsidy": 312500000,
"swtotal_size": 1180681,
"swtotal_weight": 2983018,
"swtxs": 3751,
"time": 1732171286,
"total_out": 382987459342,
"total_size": 1432916,
"total_weight": 3991958,
"totalfee": 10810485,
"txs": 3895,
"utxo_increase": 764,
"utxo_size_inc": 30072,
"utxo_increase_actual": -1507,
"utxo_size_inc_actual": -108314
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 6733638914,
"totalbytessent": 5715831477,
"timemillis": 1732171304144,
"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 v28.99.0-4835bba2cb13 - server 70016/Satoshi:28.99.0/
ipv4 npr total block manual
in 50 1 51
out 11 0 11 2 1
total 61 1 62
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 52427,
"ipv6": 0,
"onion": 13508,
"i2p": 0,
"cjdns": 0,
"total": 65935
}
}
$ halving.sh 871303
=====================================
Bitcoin Block Halving prediction
=====================================
bc=871303
gbt=1231006505
bbt=1732171286
This is average time to mine a block
(1732171286-1231006505)/871303
bts=575.1893495266864377989771
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Feb 23 21:58:17 UTC 2028
-------------------------------------
Next palindrome will be 872278
predicted to happen at this time:
Wed Nov 27 18:28:15 UTC 2024
-------------------------------------
Current mining epoch number is 432.
The next fortnight happens in block
872928 and probably around this time:
Mon Dec 2 02:19:28 UTC 2024
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
17 "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
7d3488815f08fe4d
39453aa00021616620c8ee27de86d60609c8339f3f58322e5e916b6437265513
a01dd372a17e22af
16a015a29130f71f66db488b6fe22b484d62b6e82ccd2966f03454689e977301
ea0d828b6840a58c
12625926b6bc11d3c6e0230fab63fe0a5ed919c06671e7c43dc6f84aff881f60
27fb0220961d2c4c
4d0027e3aaccf06009cd7ee59b217ffb874e5cee9d163208e51880358374c62b
f714d09729ce6b20
13e415aedbaeff87198224ffe912331a8ca3b12d487699e97dc3a84da0db8e07
24ff0ef028fe6f5e
520bd3cc9e951559f67e04d5cb2b908dddcad9de0657becdd0477561443a6460
cd89474ec9938594
9d81c6a5bddf6c37b62fa3a629f572edad9618b831d2a5e4fc441f385ddeda43
b641a2d54785a0c9
0bb487291d4450cfa62dfc9e9c5a979962548f08c68d4742b52db1a81a1497ef
a859e666d7a90948
78d81141ca0e62a3b4d5fee62a21db8871387dd67637d8c9b418191cebd5b46b
fe7bcb6ba8e81065
f86c93f8473cdaea2da41d2142baa8ba00aceaa5ce855edb3e93f9df022209c2
0028055375a445b6
134846c7c2ae3c35bb96703ed4f3cc12b3b90583b2a56dff3ac50aecc88d845b
9f002a5fccae1c49
8e9a135893a6785d2027c4c928589624052dbe0130f6ee626119a3c9c6dfdc9d
76fdeb26c1421dba
bd6451a919a69aeee5e4f9b5e10a36d347928a304b162be4d2ea5af51aa43c13
f7184249d883a245
01a3faa09207dbf5c5c4f2cc4d5a09d0625bf996999fbb0f22e7840c7282594b
ecdacfe7ae939546
3da135bec2299c809a54622510e520b91ff36119acdc5b232fd605e4842ef26e
128530b89e23d131
89ebf5098b63871b7ac59841c1f2d6b2263ce255a473e7551d6878497e221e56
f4595521a24bc96b
9ca580ca927e77a5e696ce161a31e4c0a86e164f6a6ab7802e197d29d0a77c42