# on receiving block 964388 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-08-28T04:21:26Z
# as written in the block header
2026-08-28T04:20:56Z
$ uptime # since last reboot
04:21:26 up 8 days, 18:37, 0 users, load average: 0.60, 0.70, 0.86
$ battery.sh
98%, Power Supply Online
$ uname -smnr
Linux singer 6.18.44-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1951084 kB
$ du -h -d1 .bitcoin/
12.5G .bitcoin/indexes
4.9G .bitcoin/signet
87.9M .bitcoin/wallets
97.8G .bitcoin/blocks
18.6M .bitcoin/regtest
10.7G .bitcoin/chainstate
126.1G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 435.3G 475.1G 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
<https://bitcoincore.org/> for further information about the software.
The source code is available from <https://github.com/bitcoin/bitcoin>.
This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or <https://opensource.org/license/MIT>
$ BC=$(bitcoin-cli getblockcount); echo $BC
964388
$ BH=$(bitcoin-cli getblockhash 964388); echo $BH
00000000000000000000c26acf8d53a2052eea9997a52f1d6d03a5d576b38060
$ bitcoin-cli getblockheader 00000000000000000000c26acf8d53a2052eea9997a52f1d6d03a5d576b38060
{
"hash": "00000000000000000000c26acf8d53a2052eea9997a52f1d6d03a5d576b38060",
"confirmations": 1,
"height": 964388,
"version": 537362432,
"versionHex": "20078000",
"merkleroot": "60ff1c30b0d39502831dfd389be9158e670050aca33f1bc24606f36a2b6295ef",
"time": 1787890856,
"mediantime": 1787889908,
"nonce": 75930141,
"bits": "17023cc1",
"target": "000000000000000000023cc10000000000000000000000000000000000000000",
"difficulty": 125807076547197.5,
"chainwork": "000000000000000000000000000000000000000142d8ca2408df5e92d688a7c3",
"nTx": 5178,
"previousblockhash": "0000000000000000000066c5866746e3845f7fe23e254903820ba340829ff187"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... c26a cf8d 53a2
.52e ea99 97a5 2f1d
6d.3 a5d5 76b3 8.6.
$ : 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
964388 sf: .52e 6d.3 8.6.
$ : 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 .
964388 sk: 8.6. 85
$ : 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 .
964388 ak: 374f 85
$ : Following is the jointkode
964388 jk: 8060 374f 85
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 76209,
"bytes": 40422675,
"usage": 225427624,
"total_fee": 0.06282945,
"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
155
## Current epoch estimation is +0.87%
## 740 of 2016, i.e. 36%, 1276 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.083209328715691e+20
$ bitcoin-cli getnetworkhashps 2016 963647
9.004776521724085e+20
$ bitcoin-cli getnetworkhashps 2016 961631
9.120027891947245e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 964388,
"bestblock": "00000000000000000000c26acf8d53a2052eea9997a52f1d6d03a5d576b38060",
"txouts": 165787179,
"bogosize": 12985005219,
"muhash": "7af7ee615a31630749873677f683a3fd3b9e1a1befa1e302cb502fb043f85fcb",
"total_amount": 20075985.50931525,
"total_unspendable_amount": 230.11568475,
"block_info": {
"prevout_spent": 4994.64396809,
"coinbase": 3.13729292,
"new_outputs_ex_coinbase": 4994.63167515,
"unspendable": 0.00000002,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000002,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 964388
{
"avgfee": 237,
"avgfeerate": 1,
"avgtxsize": 324,
"blockhash": "00000000000000000000c26acf8d53a2052eea9997a52f1d6d03a5d576b38060",
"feerate_percentiles": [
0,
0,
0,
1,
3
],
"height": 964388,
"ins": 7395,
"maxfee": 118488,
"maxfeerate": 147,
"maxtxsize": 304703,
"medianfee": 48,
"mediantime": 1787889908,
"mediantxsize": 221,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 66,
"outs": 11430,
"subsidy": 312500000,
"swtotal_size": 1458667,
"swtotal_weight": 3108655,
"swtxs": 3689,
"time": 1787890856,
"total_out": 499463167517,
"total_size": 1679492,
"total_weight": 3991955,
"totalfee": 1229292,
"txs": 5178,
"utxo_increase": 4035,
"utxo_size_inc": 284138,
"utxo_increase_actual": -263,
"utxo_size_inc_actual": -19782
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3138070861,
"totalbytessent": 7663876794,
"timemillis": 1787890887114,
"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 25 2 27
out 11 0 11 3
total 36 2 38
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 77276,
"ipv6": 317,
"onion": 1871,
"i2p": 6,
"cjdns": 0,
"total": 79470
}
}
$ halving.sh 964388
=====================================
Bitcoin Block Halving prediction
=====================================
bc=964388
gbt=1231006505
bbt=1787890856
This is average time to mine a block
(1787890856-1231006505)/964388
bts=577.4478462529124658203276
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 22 08:42:01 UTC 2028
-------------------------------------
Next palindrome will be 964469
predicted to happen at this time:
Fri Aug 28 17:20:29 UTC 2026
-------------------------------------
Current mining epoch number is 478.
The next fortnight happens in block
965664 and probably around this time:
Sat Sep 5 17:01:19 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
14 "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
15cad86fd857697b
1a1d19fb9d281e96de2a698d8d8d3fca02ea4c0ebb3a1ad98df2e584ae68d14c
3f5d21b063816822
281d88a83b6d021fed1fb5bc413e238caf3cef412ecc230807dc03f1e1c3e3f3
819a2c1a80ea5827
1f63f67dd37c2959e84b480e1c133c8db4debcc27a257770662e54bb35b96274
dbc00773d3794dcc
53d5b771bc525d62e3371ef1359ff7c9002e9d3b154e70ea2ae13dc4bb02db18
089d23fb3f2a550d
aab242242e041122a33e01494b791ff450ceb344c19be0aefc7a2838a283dbe3
052af73edea2c479
e56b9795940f27a7105f7c28781fbf1dc1d1f7d527968923492a49637148f4de
$ niceblack.sh $BH $BC
_|_| _|_|_| _| _|
_| _| _| _| _|
_|_|_| _|_|_| _|_|_|_|
_| _| _| _|
_|_|_| _|_| _|
_|_|_| _|_| _|_|
_| _| _| _| _|
_|_| _|_| _|_|
_| _| _| _| _|
_|_|_| _|_| _|_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... c26a cf8d 53a2 1f |
| 2. .52e ea99 97a5 2f1d 2f |
| 3. 6d.3 a5d5 76b3 8.6. 3f |
'=== ==== ==== ==== ==== ==='
jk: 8.6. 374f 85