# on receiving block 894035 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-04-26T07:45:07Z
# as written in the block header
2025-04-26T07:44:40Z
$ uptime # since last reboot
07:45:07 up 82 days, 19:24, 0 users, load average: 1.10, 1.19, 1.45
$ battery.sh
125%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1848060 kB
$ du -h -d1 .bitcoin/
11.1G .bitcoin/indexes
1.7G .bitcoin/signet
3.5M .bitcoin/wallets
97.7G .bitcoin/blocks
11.2G .bitcoin/chainstate
121.6G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 830.3G 80.1G 91% /
$ bitcoind -version
Bitcoin Core daemon version v29.0
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/licenses/MIT>
$ BC=$(bitcoin-cli getblockcount); echo $BC
894035
$ BH=$(bitcoin-cli getblockhash 894035); echo $BH
0000000000000000000193217e8cd8961a7c2c11cac6190ea5c6ed0081fda41f
$ bitcoin-cli getblockheader 0000000000000000000193217e8cd8961a7c2c11cac6190ea5c6ed0081fda41f
{
"hash": "0000000000000000000193217e8cd8961a7c2c11cac6190ea5c6ed0081fda41f",
"confirmations": 1,
"height": 894035,
"version": 538165248,
"versionHex": "2013c000",
"merkleroot": "c492f92a6c0ffa6c166137eb73f23a44d0f9a8beb1b9ea78c9955f05a1fe608d",
"time": 1745653480,
"mediantime": 1745649588,
"nonce": 3381877282,
"bits": "170248b6",
"target": "0000000000000000000248b60000000000000000000000000000000000000000",
"difficulty": 123234387977050.9,
"chainwork": "0000000000000000000000000000000000000000bea5914af6b069d552846188",
"nTx": 3552,
"previousblockhash": "00000000000000000001206d2a9f25d4f2182c7f01c68945ab95b48db5657f81"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 9321 7e8c d896
1a7c 2c11 cac6 19.e
a5c6 ed.. 81fd a41f
$ : 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
894035 sf: ...1 19.e ed.. a41f
$ : 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 .
894035 sk: a41f 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 .
894035 ak: bdbb 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 3019,
"bytes": 1591975,
"usage": 8327808,
"total_fee": 0.01716293,
"maxmempool": 300000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
1074
## Current epoch estimation is -2%
## 947 of 2016, i.e. 46%, 1069 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.644927121382568e+20
$ bitcoin-cli getnetworkhashps 2016 893087
8.821342073060424e+20
$ bitcoin-cli getnetworkhashps 2016 891071
8.697135835318949e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 894035,
"bestblock": "0000000000000000000193217e8cd8961a7c2c11cac6190ea5c6ed0081fda41f",
"txouts": 174516255,
"bogosize": 13656660752,
"muhash": "e7cc2936f9bb6f772ebb07a8e6524bef5a752c485dacd1b8e9f0dd095b3f9c89",
"total_amount": 19856141.49547935,
"total_unspendable_amount": 221.00452065,
"block_info": {
"prevout_spent": 9321.45724710,
"coinbase": 3.17038383,
"new_outputs_ex_coinbase": 9321.41186127,
"unspendable": 0.00000200,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000200,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 894035
{
"avgfee": 1278,
"avgfeerate": 4,
"avgtxsize": 424,
"blockhash": "0000000000000000000193217e8cd8961a7c2c11cac6190ea5c6ed0081fda41f",
"feerate_percentiles": [
1,
2,
2,
3,
5
],
"height": 894035,
"ins": 7323,
"maxfee": 423000,
"maxfeerate": 3016,
"maxtxsize": 29533,
"medianfee": 456,
"mediantime": 1745649588,
"mediantxsize": 226,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9581,
"subsidy": 312500000,
"swtotal_size": 1283433,
"swtotal_weight": 3099498,
"swtxs": 3304,
"time": 1745653480,
"total_out": 932141186327,
"total_size": 1506555,
"total_weight": 3991986,
"totalfee": 4538383,
"txs": 3552,
"utxo_increase": 2258,
"utxo_size_inc": 170082,
"utxo_increase_actual": 1927,
"utxo_size_inc_actual": 144266
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3041559343,
"totalbytessent": 5848679394,
"timemillis": 1745653507832,
"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 v29.0 - server 70016/Satoshi:29.0.0/
ipv4 npr total block
in 29 2 31
out 10 0 10 2
total 39 2 41
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64055,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64055
}
}
$ halving.sh 894035
=====================================
Bitcoin Block Halving prediction
=====================================
bc=894035
gbt=1231006505
bbt=1745653480
This is average time to mine a block
(1745653480-1231006505)/894035
bts=575.6445769521585260548792
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Feb 29 10:44:46 UTC 2028
-------------------------------------
Next palindrome will be 894498
predicted to happen at this time:
Tue Apr 29 09:46:43 UTC 2025
-------------------------------------
Current mining epoch number is 443.
The next fortnight happens in block
895104 and probably around this time:
Sat May 3 10:40:44 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
11 "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
d6fc965c65af86ac
2115727518daebb7f3c849acca75dd8255bdd333420ca5b55093361b8541b00e
6da69fcc632249b1
ed86c6b22ce123d37b75fc8867356c7c52d07741f0db5bdf47b92227b4314719
bfa37a27ec2b3206
09a2f47a97582776a61d6ca4ebc7c0143153b728854096909738fe82aef5aeae
179fad666f35746f
23e89a5294580aea11554a4e27cbcbf1f9707f8cebfb3861c143ea9f30757d0a
a671ff28c00ef59a
0774cafc7851e4b5e24275d275af7d7b5ee322df78c0b4fab0c631ebd6df181d
a57e3b46100062ef
87fd2de45e464e708754329c12bb4d02c83af69f0d99f3a5974813b64fce3869
f7d95f13caaba3a0
b7cef208045489fdcbf226b6dc5dc9db49f37cc681f0cd2e7822ef199f36ecaa
bcf4ab8f43351099
e0b9967d229725879fb05ad8e21672d2abfce7782cec4ec8ac8d935681579f5f
fc0cbb373960ab98
7a401969f11423f89a0d55c13be64d38ed4f95b1dd49a08afd3a216acf92c9d2
0105c242567acc2f
471622c960be0facc27413941aa49051d52ecc2832699fb03d89e2ac992bc2ce
e2da1770a7549b89
b26ab1adc59dd30c56977a41f171fbe3c4727bd01dc4f291acf1ef811111b520
$ niceblack.sh $BH $BC
_|_| _|_| _| _|
_| _| _| _| _| _|
_|_| _|_|_| _|_|_|_|
_| _| _| _|
_|_| _|_|_| _|
_| _|_|_| _|_|_|_|
_| _| _| _|
_| _| _|_| _|_|_|
_| _| _| _|
_| _|_|_| _|_|_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 9321 7e8c d896 1f |
| 2. 1a7c 2c11 cac6 19.e 2f |
| 3. a5c6 ed.. 81fd a41f 3f |
'=== ==== ==== ==== ==== ==='
ak: bdbb 94