# on receiving block 951191 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-27T00:50:34Z
# as written in the block header
2026-05-27T00:49:59Z
$ uptime # since last reboot
00:50:34 up 68 days, 15:43, 0 users, load average: 2.02, 2.04, 2.15
$ battery.sh
156%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1472632 kB
$ du -h -d1 .bitcoin/
12.3G .bitcoin/indexes
4.5G .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 434.7G 475.8G 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
951191
$ BH=$(bitcoin-cli getblockhash 951191); echo $BH
00000000000000000001458dc6ddbd60d15ba1c2d997a48a94936b7353b2041f
$ bitcoin-cli getblockheader 00000000000000000001458dc6ddbd60d15ba1c2d997a48a94936b7353b2041f
{
"hash": "00000000000000000001458dc6ddbd60d15ba1c2d997a48a94936b7353b2041f",
"confirmations": 1,
"height": 951191,
"version": 623419396,
"versionHex": "2528a004",
"merkleroot": "90a17ad65afa124622e91c675d7a5104c00fe94e490ebba740335eb3f8be5f67",
"time": 1779842999,
"mediantime": 1779840026,
"nonce": 4163569243,
"bits": "17020f79",
"target": "000000000000000000020f790000000000000000000000000000000000000000",
"difficulty": 136607070854775.1,
"chainwork": "00000000000000000000000000000000000000012b15f462fd7b175a81ed93e8",
"nTx": 2065,
"previousblockhash": "000000000000000000008bf0110af44fe95ba3be36fe6c6cc6037c4e5921a821"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 458d c6dd bd6.
d15b a1c2 d997 a48a
9493 6b73 53b2 .41f
$ : 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
951191 sf: ...1 bd6. .41f
$ : 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 .
951191 sk: .41f 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 .
951191 ak: 9bf8 94
$ : Following is the jointkode
951191 jk: 041f 9bf8 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 90192,
"bytes": 40562522,
"usage": 229140136,
"total_fee": 0.08175833,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 4,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
201
## Current epoch estimation is +0.95%
## 1655 of 2016, i.e. 82%, 361 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.86397654070057e+20
$ bitcoin-cli getnetworkhashps 2016 949535
9.770940180508523e+20
$ bitcoin-cli getnetworkhashps 2016 947519
9.480332550563884e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 951191,
"bestblock": "00000000000000000001458dc6ddbd60d15ba1c2d997a48a94936b7353b2041f",
"txouts": 165383923,
"bogosize": 12957387592,
"muhash": "c3edb6ba06efb37cf5bab491f66cfdc6322d9ba59f4c6a974299bbddb9464fbb",
"total_amount": 20034744.90260875,
"total_unspendable_amount": 230.09739125,
"block_info": {
"prevout_spent": 7014.88999414,
"coinbase": 3.14030226,
"new_outputs_ex_coinbase": 7014.87469188,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 951191
{
"avgfee": 741,
"avgfeerate": 2,
"avgtxsize": 460,
"blockhash": "00000000000000000001458dc6ddbd60d15ba1c2d997a48a94936b7353b2041f",
"feerate_percentiles": [
1,
1,
1,
2,
3
],
"height": 951191,
"ins": 4710,
"maxfee": 168740,
"maxfeerate": 201,
"maxtxsize": 19910,
"medianfee": 322,
"mediantime": 1779840026,
"mediantxsize": 223,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 150,
"outs": 5691,
"subsidy": 312500000,
"swtotal_size": 777233,
"swtotal_weight": 1868840,
"swtxs": 1924,
"time": 1779842999,
"total_out": 701487469188,
"total_size": 950251,
"total_weight": 2560912,
"totalfee": 1530226,
"txs": 2065,
"utxo_increase": 981,
"utxo_size_inc": 71667,
"utxo_increase_actual": 656,
"utxo_size_inc_actual": 47098
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 8884672064,
"totalbytessent": 20331535531,
"timemillis": 1779843035022,
"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 22 1 23
out 10 0 10 2
total 32 1 33
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 70119,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 70119
}
}
$ halving.sh 951191
=====================================
Bitcoin Block Halving prediction
=====================================
bc=951191
gbt=1231006505
bbt=1779842999
This is average time to mine a block
(1779842999-1231006505)/951191
bts=576.9986438069285696263214
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 16 21:40:57 UTC 2028
-------------------------------------
Next palindrome will be 952259
predicted to happen at this time:
Wed Jun 3 04:00:33 UTC 2026
-------------------------------------
Current mining epoch number is 471.
The next fortnight happens in block
951552 and probably around this time:
Fri May 29 10:41:35 UTC 2026
### 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
84608400b0618562
7af1f5e36df042df722c4e6516461e5e0547d35e006641145b12d3f789d981f4
1b610f06c935029b
eea8c67c733b2e5ccc41d4a49d4ca69aea0ab16e402fc2f6afd40823b3dd73a0
3b8136a5b4352438
5bb9913008ebd57d4ef635f33ea788262fb85ddd35d54acef8a36a30eb9b484f
0dd7498f9e57aafe
9d85358a70b2e0871b1b745f5de9af39209fbc6e17a2bc3f698019b4fa79996d
9b4c3531d93af896
4524967b749a8e92cf4a45b7f66cce73769df2fda641349a1874f8e58b42db76
59c67b38b88ec73b
06eac4b9ddcc7e62f9f3fcd3dbfd90aea3266691a605863682933f74824abc3b
8ef12dfb4d33395d
e52831a0b4c7a79e3aef8e39245cf4125296a7869291793855af0751da772a03
0754cd08bee7f0cf
5de59d3802a0b018ab6d5a4a5ac3e70893d3f1f3438011f4e34e72a345e57da8
ae6ab050bec1b956
28d99510bd1b74155f3600c2927a15697878b6fbb61257fe5f1d9e8bebc27652
286d9d0f40b68420
1b101f8ec1135732a3c73b6fb0459101fe2d99c368f138f04c0d05c2dfef99c1
b78f1313d78eb74a
be1cdba13b07b69073ed91bde3d2fe49ffa0ef61dedc9afcddc5159fa69e7934
$ niceblack.sh $BH $BC
___ ____ _ _ ___ _
/ _ \| ___|/ | / |/ _ \/ |
| (_) |___ \| | | | (_) | |
\__, |___) | | | |\__, | |
/_/|____/|_| |_| /_/|_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 458d c6dd bd6. 1f |
| 2. d15b a1c2 d997 a48a 2f |
| 3. 9493 6b73 53b2 .41f 3f |
'=== ==== ==== ==== ==== ==='
jk: .41f 9bf8 94