# on receiving a block here
$ date -u '+%Y-%m-%d %H:%M:%SZ'
2024-05-04 20:12:37Z
# as written in the block header
2024-05-04 20:12:28Z
$ uptime # since last reboot
20:12:37 up 186 days, 6:29, 0 users, load average: 1.08, 0.74, 0.52
$ battery.sh
97%, Power Supply Online
$ uname -snrm
Linux singer 6.1.42-0-lts #1-Alpine SMP PREEMPT_DYNAMIC Thu, 27 Jul 2023 12:27:13 +0000 x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2209720 kB
$ du -h -d1 .bitcoin/
10.1G .bitcoin/indexes
1.9G .bitcoin/signet
12.9M .bitcoin/wallets
52.8G .bitcoin/blocks
11.3G .bitcoin/chainstate
3.4G .bitcoin/testnet3
79.7G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 671.9G 238.6G 74% /
$ bitcoind --version
Bitcoin Core version v27.0
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
842107
$ BH=$(bitcoin-cli getblockhash 842107); echo $BH
00000000000000000002ec85c6e66201bd1b271fd2abbf2cf7e783b8c9160856
$ bitcoin-cli getblockheader $BH
{
"hash": "00000000000000000002ec85c6e66201bd1b271fd2abbf2cf7e783b8c9160856",
"confirmations": 1,
"height": 842107,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "66ffc8399c1218c27f619835d668ee490f30fd4c2f00b822e20d754d68d5e225",
"time": 1714853548,
"mediantime": 1714852343,
"nonce": 1741729586,
"bits": "170331db",
"difficulty": 88104191118793.16,
"chainwork": "000000000000000000000000000000000000000077cb48c847ca4102dd788788",
"nTx": 5696,
"previousblockhash": "00000000000000000000ef4b77d3da450a051b58b7e476d03bbd5dee5095fee9"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...2 ec85 c6e6 62.1
bd1b 271f d2ab bf2c
f7e7 83b8 c916 .856
$ : Following is the shortform
$ last=${BH#${BH%????}}
$ 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
842107 sf: ...2 62.1 .856
$ : 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
842107 sk: .856 94
$ niceblack.sh $BH $BC
_ _ _
| |__| |___ __| |__
| '_ \ / _ \/ _| / /
|_.__/_\___/\__|_\_\
___ _ _ ___ _ __ ____
( _ ) | |_ ) |/ \__ |
/ _ \_ _/ /| | () |/ /
\___/ |_/___|_|\__//_/
,--- .123 4567 89ab cdef ---,
| .. .... .... .... .... .f |
| 1. ...2 ec85 c6e6 62.1 1f |
| 2. bd1b 271f d2ab bf2c 2f |
| 3. f7e7 83b8 c916 .856 3f |
'=== ==== ==== ==== ==== ==='
sf: ...2 62.1 .856
sk: .856 94
..............|. |||.||..|....|.|
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 20837,
"bytes": 55072189,
"usage": 210036656,
"total_fee": 4.05431239,
"maxmempool": 1500000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
# current and previous two
$ bitcoin-cli getnetworkhashps -1
6.149477226011482e+20
$ bitcoin-cli getnetworkhashps -1 840671
6.304409353452951e+20
$ bitcoin-cli getnetworkhashps -1 838655
6.182828247491896e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 842107,
"bestblock": "00000000000000000002ec85c6e66201bd1b271fd2abbf2cf7e783b8c9160856",
"txouts": 181561805,
"bogosize": 13947973599,
"muhash": "a77a4becf878ce3bc1f6eb8e95e2f622186344f7dacd25d12caca92f33f1d6ac",
"total_amount": 19693867.99266567,
"total_unspendable_amount": 219.50733433,
"block_info": {
"prevout_spent": 502.37496574,
"coinbase": 3.39959088,
"new_outputs_ex_coinbase": 502.10037486,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 842107
{
"avgfee": 4821,
"avgfeerate": 27,
"avgtxsize": 244,
"blockhash": "00000000000000000002ec85c6e66201bd1b271fd2abbf2cf7e783b8c9160856",
"feerate_percentiles": [
22,
25,
26,
27,
29
],
"height": 842107,
"ins": 7199,
"maxfee": 400788,
"maxfeerate": 356,
"maxtxsize": 14793,
"medianfee": 3340,
"mediantime": 1714852343,
"mediantxsize": 182,
"minfee": 1638,
"minfeerate": 8,
"mintxsize": 150,
"outs": 13106,
"subsidy": 312500000,
"swtotal_size": 1261141,
"swtotal_weight": 3470257,
"swtxs": 5592,
"time": 1714853548,
"total_out": 50210037486,
"total_size": 1391572,
"total_weight": 3991981,
"totalfee": 27459088,
"txs": 5696,
"utxo_increase": 5907,
"utxo_size_inc": 375687,
"utxo_increase_actual": 1026,
"utxo_size_inc_actual": 79311
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 1283874224,
"totalbytessent": 1532370033,
"timemillis": 1714853558368,
"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 v27.0 - server 70016/Satoshi:27.0.0/
ipv4 onion npr total block manual
in 51 0 18 69
out 7 4 0 11 2 1
total 58 4 18 80
Local addresses
176.112.184.220 port 8333 score 4572
gifm4fnj3vua664xhgeanx5fnpco3txkqy4amr4txbfsciiyrkxpf2qd.onion port 8333 score 4
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 51806,
"ipv6": 9,
"onion": 14907,
"i2p": 0,
"cjdns": 0,
"total": 66722
}
}
$ halving.sh 842107
=====================================
Bitcoin Block Halving prediction
=====================================
bc=842107
gbt=1231006505
bbt=1714853548
This is average time to mine a block
(1714853548-1231006505)/842107
bts=574.5664962213872804913384
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Feb 16 08:18:20 UTC 2028
-------------------------------------
Next palindrome will be 842248
predicted to happen at this time:
Sun May 5 18:42:41 UTC 2024
-------------------------------------
Current mining epoch number is 417.
The next fortnight happens in block
842688 and probably around this time:
Wed May 8 16:56:11 UTC 2024
### v2_peerinfo are in v2_peerinfo-bitcoin.txt