# on receiving block 951600 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-29T18:30:41Z
# as written in the block header
2026-05-29T18:30:23Z
$ uptime # since last reboot
18:30:41 up 71 days, 9:23, 0 users, load average: 2.80, 4.38, 3.40
$ battery.sh
163%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1446288 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
125.3G .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
951600
$ BH=$(bitcoin-cli getblockhash 951600); echo $BH
0000000000000000000100b35e381c9c71cc70e3fffa5aa837b0d01f30f71276
$ bitcoin-cli getblockheader 0000000000000000000100b35e381c9c71cc70e3fffa5aa837b0d01f30f71276
{
"hash": "0000000000000000000100b35e381c9c71cc70e3fffa5aa837b0d01f30f71276",
"confirmations": 1,
"height": 951600,
"version": 536928256,
"versionHex": "2000e000",
"merkleroot": "83b515ea0f03dc97fe92aff611dc0de777a2a9a1dd1d31f40624a90cda00dcaf",
"time": 1780079423,
"mediantime": 1780075947,
"nonce": 3788963179,
"bits": "1702068f",
"target": "00000000000000000002068f0000000000000000000000000000000000000000",
"difficulty": 138955357012247.3,
"chainwork": "00000000000000000000000000000000000000012bdcdd5e800b66cebd1bc352",
"nTx": 3920,
"previousblockhash": "00000000000000000001b0b039adfcef3183689769f0c727fa2100d062778915"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 ..b3 5e38 1c9c
71cc 7.e3 fffa 5aa8
37b. d.1f 3.f7 1276
$ : 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
951600 sf: ...1 ..b3 7.e3 37b. M
$ : 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 .
951600 sk: 1276 64
$ : 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 .
951600 ak: 2345 64
$ : Following is the jointkode
951600 jk: 1276 2345 64
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 95700,
"bytes": 44055624,
"usage": 247471640,
"total_fee": 0.11189915,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 15,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
253
## Current epoch estimation is +0.35%
## 48 of 2016, i.e. 2%, 1968 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.97980696523968e+20
$ bitcoin-cli getnetworkhashps 2016 951551
9.944499015556698e+20
$ bitcoin-cli getnetworkhashps 2016 949535
9.770940180508523e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 951600,
"bestblock": "0000000000000000000100b35e381c9c71cc70e3fffa5aa837b0d01f30f71276",
"txouts": 165476392,
"bogosize": 12964284154,
"muhash": "415db92dd88f9928faf9d55d5b1b620aef5ab69e158ea3fd257f8a7b12f704f3",
"total_amount": 20036023.02743981,
"total_unspendable_amount": 230.09756019,
"block_info": {
"prevout_spent": 9675.49827550,
"coinbase": 3.16153073,
"new_outputs_ex_coinbase": 9675.46174477,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 951600
{
"avgfee": 932,
"avgfeerate": 3,
"avgtxsize": 434,
"blockhash": "0000000000000000000100b35e381c9c71cc70e3fffa5aa837b0d01f30f71276",
"feerate_percentiles": [
0,
2,
2,
3,
5
],
"height": 951600,
"ins": 8727,
"maxfee": 89144,
"maxfeerate": 553,
"maxtxsize": 47698,
"medianfee": 388,
"mediantime": 1780075947,
"mediantxsize": 222,
"minfee": 48,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9172,
"subsidy": 312500000,
"swtotal_size": 1617917,
"swtotal_weight": 3657800,
"swtxs": 3693,
"time": 1780079423,
"total_out": 967546174477,
"total_size": 1702341,
"total_weight": 3995496,
"totalfee": 3653073,
"txs": 3920,
"utxo_increase": 445,
"utxo_size_inc": 34901,
"utxo_increase_actual": -987,
"utxo_size_inc_actual": -68813
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 10184215542,
"totalbytessent": 23986253230,
"timemillis": 1780079441426,
"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 20 1 21
out 10 0 10 2
total 30 1 31
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 70099,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 70099
}
}
$ halving.sh 951600
=====================================
Bitcoin Block Halving prediction
=====================================
bc=951600
gbt=1231006505
bbt=1780079423
This is average time to mine a block
(1780079423-1231006505)/951600
bts=576.9990973107426326790324
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 16 21:48:54 UTC 2028
-------------------------------------
Next palindrome will be 952259
predicted to happen at this time:
Wed Jun 3 04:07:45 UTC 2026
-------------------------------------
Current mining epoch number is 472.
The next fortnight happens in block
953568 and probably around this time:
Thu Jun 11 21:55:57 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 ..b3 5e38 1c9c 1f |
| 2. 71cc 7.e3 fffa 5aa8 2f |
| 3. 37b. d.1f 3.f7 1276 3f |
'=== ==== ==== ==== ==== ==='
jk: 1276 2345 64