# on receiving block 905214 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-07-12T08:53:53Z
# as written in the block header
2025-07-12T08:53:26Z
$ uptime # since last reboot
08:53:53 up 159 days, 20:33, 0 users, load average: 0.45, 0.67, 0.91
$ battery.sh
142%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1591504 kB
$ du -h -d1 .bitcoin/
11.3G .bitcoin/indexes
2.8G .bitcoin/signet
3.8M .bitcoin/wallets
97.8G .bitcoin/blocks
10.8G .bitcoin/chainstate
122.7G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 840.5G 69.9G 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
for further information about the software.
The source code is available from .
This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or
$ BC=$(bitcoin-cli getblockcount); echo $BC
905214
$ BH=$(bitcoin-cli getblockhash 905214); echo $BH
00000000000000000000bcb74a2b26bee5869ec19a0decff8c163afaca1946af
$ bitcoin-cli getblockheader 00000000000000000000bcb74a2b26bee5869ec19a0decff8c163afaca1946af
{
"hash": "00000000000000000000bcb74a2b26bee5869ec19a0decff8c163afaca1946af",
"confirmations": 1,
"height": 905214,
"version": 624738304,
"versionHex": "253cc000",
"merkleroot": "856753740bc790187c85abb686c3b923537cb2bec7a62fa61e37489505d60365",
"time": 1752310406,
"mediantime": 1752307553,
"nonce": 1045328938,
"bits": "17023aa6",
"target": "000000000000000000023aa60000000000000000000000000000000000000000",
"difficulty": 126271255279307,
"chainwork": "0000000000000000000000000000000000000000d1a0316fff58fba31ac27763",
"nTx": 4908,
"previousblockhash": "000000000000000000001b77c1d0066754b9cc8a09107f7e3f66398be34c8948"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... bcb7 4a2b 26be
e586 9ec1 9a.d ecff
8c16 3afa ca19 46af
$ : 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
905214 sf: 9a.d 46af
$ : 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 .
905214 sk: 46af a5
$ : 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 .
905214 ak: e7cd a5
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 28125,
"bytes": 14790031,
"usage": 83184528,
"total_fee": 0.06358307,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
428
## Current epoch estimation is +0.44%
## 30 of 2016, i.e. 1%, 1986 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.065692319999839e+20
$ bitcoin-cli getnetworkhashps 2016 905183
9.025885092859546e+20
$ bitcoin-cli getnetworkhashps 2016 903167
8.366861911869141e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 905214,
"bestblock": "00000000000000000000bcb74a2b26bee5869ec19a0decff8c163afaca1946af",
"txouts": 166893020,
"bogosize": 13076997603,
"muhash": "ec5ba310e07783ebab7bf4b02484f2222f3818fd03ba156dcbfce167f3331974",
"total_amount": 19891075.82829193,
"total_unspendable_amount": 221.04670807,
"block_info": {
"prevout_spent": 1082.62858906,
"coinbase": 3.14094040,
"new_outputs_ex_coinbase": 1082.61264866,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 905214
{
"avgfee": 324,
"avgfeerate": 1,
"avgtxsize": 360,
"blockhash": "00000000000000000000bcb74a2b26bee5869ec19a0decff8c163afaca1946af",
"feerate_percentiles": [
1,
1,
1,
1,
2
],
"height": 905214,
"ins": 5388,
"maxfee": 42600,
"maxfeerate": 301,
"maxtxsize": 15222,
"medianfee": 230,
"mediantime": 1752307553,
"mediantxsize": 353,
"minfee": 122,
"minfeerate": 1,
"mintxsize": 150,
"outs": 13672,
"subsidy": 312500000,
"swtotal_size": 1758678,
"swtotal_weight": 3942258,
"swtxs": 4864,
"time": 1752310406,
"total_out": 108261264866,
"total_size": 1771083,
"total_weight": 3991878,
"totalfee": 1594040,
"txs": 4908,
"utxo_increase": 8284,
"utxo_size_inc": 579631,
"utxo_increase_actual": 5002,
"utxo_size_inc_actual": 387100
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 7512777532,
"totalbytessent": 16577227964,
"timemillis": 1752310433819,
"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 20 2 22
out 14 0 14 2 4
total 34 2 36
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 61749,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 61749
}
}
$ halving.sh 905214
=====================================
Bitcoin Block Halving prediction
=====================================
bc=905214
gbt=1231006505
bbt=1752310406
This is average time to mine a block
(1752310406-1231006505)/905214
bts=575.8895963942267859016918
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Fri Mar 3 10:12:37 UTC 2028
-------------------------------------
Next palindrome will be 905509
predicted to happen at this time:
Mon Jul 14 08:04:53 UTC 2025
-------------------------------------
Current mining epoch number is 449.
The next fortnight happens in block
907200 and probably around this time:
Fri Jul 25 14:35:22 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
15 "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
807efab60edcf18e
561b262613400c60ba780a0e0ead671be7d829869d42072be96745284daa23a1
716217be0b59d813
1b135df1a1353f7a20f1f9ec28bbec8a477b96fc1ebb44da7eb60b09faf65475
9dd1dd68fb58b439
49ab9de4311bdcbdec5193c8f88563958f0e21406a86e40a51b3ec26ac8ade22
a6b9a6f6f661268a
38312b5d64b69979205b0ceebc4eed0119446194d842adae1f50b5591550c5c8
e7cf12860237795d
ea464fdc33798343c911c76c650a42609a0e350722a6c4da0eeba9f5465801a1
d3ed3d5f3894922d
abd8a2d6e74732d16a6d6348304243cf4e20cdfd9a901e01b9c929678a1d8c04
cdccaaae684107e3
8fdb9d44fa52d8eb882fae406397007828b0890a93bda13fdd316bbecee1d927
adfda1c1170c7d10
50372cd468353b145f40e6ef34ee026c8d65b28c4535480381b730a5cad98d5d
e7bb3d482e5189fd
8f5937700d987aa9bd627206278a019a2eb22b652b20211ef0259bc90a77624c
b84b0a562bc7fbfd
598d54b3ca073a2d26145bd86fd2ad09b7d26643fedc00aaa735ddd570dd002e
f1e594abbd84af33
04ffc7a0c68f59877de8cdfe38d24ebc554a6869f44c7f24d1b7c19a434d3a7b
$ niceblack.sh $BH $BC
_ _ _
| | | | | |
| | | | __ __ | |
|/ \_|/ / \_/ |/_)
\_/ |__/\__/ \___/| \_/
__ __ ____ __ ,
/ | / \ | / )/|| |
\_/|| ||___ / ||__|_
|| | \ / | |
| \__/ \___//___ | |
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... bcb7 4a2b 26be 1f |
| 2. e586 9ec1 9a.d ecff 2f |
| 3. 8c16 3afa ca19 46af 3f |
'=== ==== ==== ==== ==== ==='
ak: e7cd a5