# on receiving block 964181 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-08-26T18:37:37Z
# as written in the block header
2026-08-26T18:37:08Z
$ uptime # since last reboot
18:37:37 up 7 days, 8:53, 0 users, load average: 1.38, 1.75, 1.65
$ battery.sh
102%, Power Supply Online
$ uname -smnr
Linux singer 6.18.44-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1833200 kB
$ du -h -d1 .bitcoin/
12.5G .bitcoin/indexes
5.0G .bitcoin/signet
87.9M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
126.1G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 435.3G 475.2G 48% /
$ bitcoind -version
Bitcoin Core daemon version v31.99.0-gdb73d162395789ca3a74d50a831f4ac30c0da4f4 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
964181
$ BH=$(bitcoin-cli getblockhash 964181); echo $BH
000000000000000000012d54184acc8d9acbd368dfca5b08c29ce3b290da1dfb
$ bitcoin-cli getblockheader 000000000000000000012d54184acc8d9acbd368dfca5b08c29ce3b290da1dfb
{
"hash": "000000000000000000012d54184acc8d9acbd368dfca5b08c29ce3b290da1dfb",
"confirmations": 1,
"height": 964181,
"version": 573988864,
"versionHex": "22366000",
"merkleroot": "d8ed4b737746b4b3a606c43580ad7f0f8ac2f45ba7cbd0a71614ca53a1b2c68b",
"time": 1787769428,
"mediantime": 1787765094,
"nonce": 3229005957,
"bits": "17023cc1",
"target": "000000000000000000023cc10000000000000000000000000000000000000000",
"difficulty": 125807076547197.5,
"chainwork": "0000000000000000000000000000000000000001427c44a8cb1235408e7e0e5a",
"nTx": 3455,
"previousblockhash": "000000000000000000008887e96e9c870bacabb2579cb57d450780abb0dedd48"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 2d54 184a cc8d
9acb d368 dfca 5b.8
c29c e3b2 9.da 1dfb
$ : 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
964181 sf: ...1 5b.8 9.da 1dfb
$ : 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 .
964181 sk: 1dfb 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 .
964181 ak: 98fc 94
$ : Following is the jointkode
964181 jk: 1dfb 98fc 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 85156,
"bytes": 42487344,
"usage": 238688768,
"total_fee": 0.08772084,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
206
## Current epoch estimation is +0.16%
## 533 of 2016, i.e. 26%, 1483 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.019997750451033e+20
$ bitcoin-cli getnetworkhashps 2016 963647
9.004776521724085e+20
$ bitcoin-cli getnetworkhashps 2016 961631
9.120027891947245e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 964181,
"bestblock": "000000000000000000012d54184acc8d9acbd368dfca5b08c29ce3b290da1dfb",
"txouts": 165746127,
"bogosize": 12981994877,
"muhash": "ef7ba0503018f00b0a67596771f7a2d36a2a310c2aa0e111a16889cf9bb0134c",
"total_amount": 20075338.63442586,
"total_unspendable_amount": 230.11557414,
"block_info": {
"prevout_spent": 7381.96640614,
"coinbase": 3.16988944,
"new_outputs_ex_coinbase": 7381.92151670,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 964181
{
"avgfee": 1299,
"avgfeerate": 4,
"avgtxsize": 487,
"blockhash": "000000000000000000012d54184acc8d9acbd368dfca5b08c29ce3b290da1dfb",
"feerate_percentiles": [
2,
2,
3,
4,
5
],
"height": 964181,
"ins": 8327,
"maxfee": 127317,
"maxfeerate": 1365,
"maxtxsize": 58877,
"medianfee": 564,
"mediantime": 1787765094,
"mediantxsize": 223,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9849,
"subsidy": 312500000,
"swtotal_size": 1606876,
"swtotal_weight": 3683218,
"swtxs": 3218,
"time": 1787769428,
"total_out": 738192151670,
"total_size": 1683998,
"total_weight": 3991706,
"totalfee": 4488944,
"txs": 3455,
"utxo_increase": 1522,
"utxo_size_inc": 112225,
"utxo_increase_actual": 974,
"utxo_size_inc_actual": 70769
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2282802273,
"totalbytessent": 5266747375,
"timemillis": 1787769458564,
"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 v31.99.0-gdb73d162395789ca3a74d50a831f4ac30c0da4f4 - server 70017/Satoshi:31.99.0/
ipv4 npr total block
in 21 2 23
out 10 0 10 2
total 31 2 33
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 77113,
"ipv6": 318,
"onion": 1875,
"i2p": 6,
"cjdns": 0,
"total": 79312
}
}
$ halving.sh 964181
=====================================
Bitcoin Block Halving prediction
=====================================
bc=964181
gbt=1231006505
bbt=1787769428
This is average time to mine a block
(1787769428-1231006505)/964181
bts=577.4458795123742198049745
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 22 08:07:35 UTC 2028
-------------------------------------
Next palindrome will be 964469
predicted to happen at this time:
Fri Aug 28 16:48:52 UTC 2026
-------------------------------------
Current mining epoch number is 478.
The next fortnight happens in block
965664 and probably around this time:
Sat Sep 5 16:29:40 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
12 "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
d794b809c0290b7b
5bde7c71d663f011da173f15380b32b16ee11d61f32030ac154b0b096528833a
856ecac120da5045
387f333e519af90145a9b402e390209924356c499f219ad44838139e5cb6040b
ba6d92d150836c0c
70989c2dffc89b643435aa3765e03d63658f4d5e0fd918de5136862048f54852
1c496eb0560fd00f
f6422bab4279a5afc65711069c0ab8dcbec0cf81135e1b13aa0d9ad42fa925e3
73f090725e004df4
33d8fd43eb3e611636defa879c17c7cd4a8831b38cc859342f99a1768f9f7b87
8c3d576bd3990c91
fe463cc7959f98cd1d6078334b9badfd6a518a5944d9469dea2c79ea011e0be7
204b3ccbe5923f22
aa13fce20d85333328bc4b8b6ebaef334c028336d22a672672b7c9bf8657ee42
626323724eabb3f4
314ec6cf4fd91e9e54520e3aef80a6f91584f847987cfcca0c5234543bee1d2d
3c961d42b8113da4
92177d0755ea28902fda866998be355ee3710aa27bcc699567bf5f99f3e8071e
15cad86fd857697b
1a1d19fb9d281e96de2a698d8d8d3fca02ea4c0ebb3a1ad98df2e584ae68d14c
3f5d21b063816822
281d88a83b6d021fed1fb5bc413e238caf3cef412ecc230807dc03f1e1c3e3f3
17c3c18ecc86d6e6
0dc1927848981336ae8521e1b4c520f2f44afa9d7d2771f53a6e9fa25b3ac86e
$ niceblack.sh $BH $BC
_|_| _|_|_| _| _|
_| _| _| _| _|
_|_|_| _|_|_| _|_|_|_|
_| _| _| _|
_|_|_| _|_| _|
_| _|_| _|
_|_| _| _| _|_|
_| _|_| _|
_| _| _| _|
_| _|_| _|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 2d54 184a cc8d 1f |
| 2. 9acb d368 dfca 5b.8 2f |
| 3. c29c e3b2 9.da 1dfb 3f |
'=== ==== ==== ==== ==== ==='
jk: 1dfb 98fc 94