# on receiving block 887766 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-03-14T11:25:18Z
# as written in the block header
2025-03-14T11:24:44Z
$ uptime # since last reboot
11:25:18 up 39 days, 23:05, 0 users, load average: 1.18, 1.26, 1.22
$ battery.sh
96%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 936264 kB
$ du -h -d1 .bitcoin/
11.0G .bitcoin/indexes
1.5G .bitcoin/signet
3.3M .bitcoin/wallets
97.7G .bitcoin/blocks
11.4G .bitcoin/chainstate
121.7G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 818.2G 92.3G 90% /
$ bitcoind -version
Bitcoin Core version v28.1.0
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
887766
$ BH=$(bitcoin-cli getblockhash 887766); echo $BH
000000000000000000016a521188486773247d31f0895d338eb9ee8c70256897
$ bitcoin-cli getblockheader 000000000000000000016a521188486773247d31f0895d338eb9ee8c70256897
{
"hash": "000000000000000000016a521188486773247d31f0895d338eb9ee8c70256897",
"confirmations": 1,
"height": 887766,
"version": 719216640,
"versionHex": "2ade6000",
"merkleroot": "71095fa92e59a6f80a226ce3a05efe14fc687e0800cf6a4251baded5c60d3882",
"time": 1741951484,
"mediantime": 1741948491,
"nonce": 3693376812,
"bits": "17028281",
"difficulty": 112149504190349.3,
"chainwork": "0000000000000000000000000000000000000000b46fdc6bafd78b7993b3573d",
"nTx": 510,
"previousblockhash": "00000000000000000001ceae6a6e6c2ccfb0e4e4cb7e56d1412547e139b480a3"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 6a52 1188 4867
7324 7d31 f.89 5d33
8eb9 ee8c 7.25 6897
$ : 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
887766 sf: ...1 f.89 7.25 6897
$ : 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 .
887766 sk: 6897 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 .
887766 ak: e894 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 11075,
"bytes": 17502424,
"usage": 86985824,
"total_fee": 0.19755272,
"maxmempool": 500000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
1128
## Current epoch estimation is +0.95%
## 726 of 2016, i.e. 36%, 1290 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.104781400977401e+20
$ bitcoin-cli getnetworkhashps 2016 887039
8.027983237538049e+20
$ bitcoin-cli getnetworkhashps 2016 885023
7.91465564126557e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 887766,
"bestblock": "000000000000000000016a521188486773247d31f0895d338eb9ee8c70256897",
"txouts": 174450125,
"bogosize": 13633370142,
"muhash": "b6aae9d6724266933d367b169471ee794efe22bf1e13b8842483f9f3d6228880",
"total_amount": 19836550.96773893,
"total_unspendable_amount": 220.90726107,
"block_info": {
"prevout_spent": 298.60890986,
"coinbase": 3.14817288,
"new_outputs_ex_coinbase": 298.58573698,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 887766
{
"avgfee": 4552,
"avgfeerate": 2,
"avgtxsize": 4171,
"blockhash": "000000000000000000016a521188486773247d31f0895d338eb9ee8c70256897",
"feerate_percentiles": [
2,
2,
2,
2,
2
],
"height": 887766,
"ins": 13894,
"maxfee": 189360,
"maxfeerate": 88,
"maxtxsize": 205857,
"medianfee": 429,
"mediantime": 1741948491,
"mediantxsize": 281,
"minfee": 220,
"minfeerate": 1,
"mintxsize": 150,
"outs": 1081,
"subsidy": 312500000,
"swtotal_size": 2105076,
"swtotal_weight": 3923307,
"swtxs": 449,
"time": 1741951484,
"total_out": 29858573698,
"total_size": 2123189,
"total_weight": 3995759,
"totalfee": 2317288,
"txs": 510,
"utxo_increase": -12813,
"utxo_size_inc": -920483,
"utxo_increase_actual": -12833,
"utxo_size_inc_actual": -922552
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 17440298833,
"totalbytessent": 30874177630,
"timemillis": 1741951519394,
"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 v28.1.0 - server 70016/Satoshi:28.1.0/
ipv4 npr total block manual
in 34 2 36
out 11 0 11 2 1
total 45 2 47
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62767,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62767
}
}
$ halving.sh 887766
=====================================
Bitcoin Block Halving prediction
=====================================
bc=887766
gbt=1231006505
bbt=1741951484
This is average time to mine a block
(1741951484-1231006505)/887766
bts=575.5395041717027102832162
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Mon Feb 28 04:05:59 UTC 2028
-------------------------------------
Next palindrome will be 887788
predicted to happen at this time:
Fri Mar 14 14:55:45 UTC 2025
-------------------------------------
Current mining epoch number is 440.
The next fortnight happens in block
889056 and probably around this time:
Sun Mar 23 01:38:49 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
9 "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
d91ece5e6e60af2a
e94499f353491176cd46cadd470fd9cf8a2b3804cff524bd9835d8c758d37508
101beb0410b9ef63
087be31ef28aac4f3490b4b63aff9fe581d63489f258e3b50298551a5ff5f05d
7d86c05aacd07b59
ebf4fb32e6ed54498089b78a15a123caa5a273a731af2028dbac3667c3294cd6
58c64d82559e65a3
57843b173541c5f889e64de7235a86083c88877f877f46df66bb5a35b5fc3002
2f3a15cc2c5fc075
3fe570146c3cfd792b9ef03f7955f6a9603d3c4ccd068f0147bb5dc1c4293836
3cf142ccb3b880fc
5d85ab568387957491196d50223e9fbd35ee512ce21e282333ae46ef06714a5e
565896850e2ea63d
e622d15afce38ddffd7fe6bb8b2e9983e63784e1c21aebc3fe00fad8d928ae17
bbc706ee1d2be9c7
6ac5060c7c7404e2b6f39aab9445f565c15d63fce89eeb0e00199e6fb09b8517
2a3dbfe5912bc7b2
660f209508b09b1adf805feb4483a1c157139ab46180915a62f5345e3456f8ba
$ niceblack.sh $BH $BC
____ ____ _____
( __ )( __ )__ /
/ __ / __ | / /
/ /_/ / /_/ / / /
\____/\____/ /_/
__________ _____
/__ / ___// ___/
/ / __ \/ __ \
/ / /_/ / /_/ /
/_/\____/\____/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 6a52 1188 4867 1f |
| 2. 7324 7d31 f.89 5d33 2f |
| 3. 8eb9 ee8c 7.25 6897 3f |
'=== ==== ==== ==== ==== ==='
ak: e894 94