# on receiving block 951743 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-30T18:48:08Z
# as written in the block header
2026-05-30T18:48:01Z
$ uptime # since last reboot
18:48:08 up 72 days, 9:41, 0 users, load average: 2.20, 2.09, 2.09
$ battery.sh
157%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1415116 kB
$ du -h -d1 .bitcoin/
12.3G .bitcoin/indexes
4.4G .bitcoin/signet
2.7M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.2G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 434.6G 475.9G 48% /
$ bitcoind -version
Bitcoin Core daemon version v31.0.0rc4 bitcoind
Copyright (C) 2009-2026 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
951743
$ BH=$(bitcoin-cli getblockhash 951743); echo $BH
00000000000000000001db749d978b2d4cba40bf4bdbe4a7c28e381f6ef51edf
$ bitcoin-cli getblockheader 00000000000000000001db749d978b2d4cba40bf4bdbe4a7c28e381f6ef51edf
{
"hash": "00000000000000000001db749d978b2d4cba40bf4bdbe4a7c28e381f6ef51edf",
"confirmations": 1,
"height": 951743,
"version": 633405440,
"versionHex": "25c10000",
"merkleroot": "224f5b76eaeb643cd469c5975ac5ec0fce48057fe7405cd86c9d0911d94498b7",
"time": 1780166881,
"mediantime": 1780165817,
"nonce": 1632096872,
"bits": "1702068f",
"target": "00000000000000000002068f0000000000000000000000000000000000000000",
"difficulty": 138955357012247.3,
"chainwork": "00000000000000000000000000000000000000012c2375dd6bd52e9c0766a240",
"nTx": 5949,
"previousblockhash": "0000000000000000000160ca8edf2b740db6e9a9bff752fd593bec3964abbc95"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 db74 9d97 8b2d
4cba 4.bf 4bdb e4a7
c28e 381f 6ef5 1edf
$ : 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
951743 sf: ...1 4.bf 1edf
$ : 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 .
951743 sk: 1edf a4
$ : 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 .
951743 ak: e4.d a4
$ : Following is the jointkode
951743 jk: 1edf e4.d a4
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 81326,
"bytes": 35251530,
"usage": 202484944,
"total_fee": 0.06553693,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 438,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
185
## Current epoch estimation is -0.08%
## 191 of 2016, i.e. 9%, 1825 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.936361720258037e+20
$ bitcoin-cli getnetworkhashps 2016 951551
9.944499015556698e+20
$ bitcoin-cli getnetworkhashps 2016 949535
9.770940180508523e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 951743,
"bestblock": "00000000000000000001db749d978b2d4cba40bf4bdbe4a7c28e381f6ef51edf",
"txouts": 165511432,
"bogosize": 12966883724,
"muhash": "a5fe2b7c80ee2eaac7d63da8d37cbd4b18ca47c471bc8f903d9f95196ec8efa6",
"total_amount": 20036469.90234781,
"total_unspendable_amount": 230.09765219,
"block_info": {
"prevout_spent": 231.32562028,
"coinbase": 3.13468328,
"new_outputs_ex_coinbase": 231.31593700,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 951743
{
"avgfee": 162,
"avgfeerate": 0,
"avgtxsize": 274,
"blockhash": "00000000000000000001db749d978b2d4cba40bf4bdbe4a7c28e381f6ef51edf",
"feerate_percentiles": [
0,
0,
0,
0,
1
],
"height": 951743,
"ins": 7694,
"maxfee": 35924,
"maxfeerate": 73,
"maxtxsize": 112812,
"medianfee": 79,
"mediantime": 1780165817,
"mediantxsize": 221,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 150,
"outs": 12294,
"subsidy": 312500000,
"swtotal_size": 1594548,
"swtotal_weight": 3834387,
"swtxs": 5926,
"time": 1780166881,
"total_out": 23131593700,
"total_size": 1634849,
"total_weight": 3995591,
"totalfee": 968328,
"txs": 5949,
"utxo_increase": 4600,
"utxo_size_inc": 329144,
"utxo_increase_actual": -976,
"utxo_size_inc_actual": -70261
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 10593050749,
"totalbytessent": 25129918846,
"timemillis": 1780166888812,
"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 v31.0.0rc4 - server 70016/Satoshi:31.0.0/
ipv4 npr total block
in 16 1 17
out 10 0 10 2
total 26 1 27
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 70106,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 70106
}
}
$ halving.sh 951743
=====================================
Bitcoin Block Halving prediction
=====================================
bc=951743
gbt=1231006505
bbt=1780166881
This is average time to mine a block
(1780166881-1231006505)/951743
bts=577.0042952726783672920449
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 16 23:19:52 UTC 2028
-------------------------------------
Next palindrome will be 952259
predicted to happen at this time:
Wed Jun 3 05:30:15 UTC 2026
-------------------------------------
Current mining epoch number is 472.
The next fortnight happens in block
953568 and probably around this time:
Thu Jun 11 23:18:33 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
10 "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
84608400b0618562
7af1f5e36df042df722c4e6516461e5e0547d35e006641145b12d3f789d981f4
1b610f06c935029b
eea8c67c733b2e5ccc41d4a49d4ca69aea0ab16e402fc2f6afd40823b3dd73a0
3b8136a5b4352438
5bb9913008ebd57d4ef635f33ea788262fb85ddd35d54acef8a36a30eb9b484f
0dd7498f9e57aafe
9d85358a70b2e0871b1b745f5de9af39209fbc6e17a2bc3f698019b4fa79996d
9b4c3531d93af896
4524967b749a8e92cf4a45b7f66cce73769df2fda641349a1874f8e58b42db76
8ef12dfb4d33395d
e52831a0b4c7a79e3aef8e39245cf4125296a7869291793855af0751da772a03
0754cd08bee7f0cf
5de59d3802a0b018ab6d5a4a5ac3e70893d3f1f3438011f4e34e72a345e57da8
ae6ab050bec1b956
28d99510bd1b74155f3600c2927a15697878b6fbb61257fe5f1d9e8bebc27652
b51007de917319ab
8fe5a83ce4c5de1a770129ab662ed01879b5436b15d8a8ae7d253c34ffc4cc21
560d96908a217771
37112352018a623a5701dff60e42ad413ebd30a8ccddc3a1e4994d50ff2e10ce
$ niceblack.sh $BH $BC
_|_| _|_|_|_| _|
_| _| _| _|_|
_|_|_| _|_|_| _|
_| _| _|
_|_|_| _|_|_| _|
_|_|_|_|_| _| _| _|_|_|
_| _| _| _|
_| _|_|_|_| _|_|
_| _| _|
_| _| _|_|_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 db74 9d97 8b2d 1f |
| 2. 4cba 4.bf 4bdb e4a7 2f |
| 3. c28e 381f 6ef5 1edf 3f |
'=== ==== ==== ==== ==== ==='
jk: 1edf e4.d a4