# on receiving block 943436 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-02T23:41:41Z
# as written in the block header
2026-04-02T23:41:16Z
$ uptime # since last reboot
23:41:41 up 14 days, 14:34, 0 users, load average: 1.55, 2.44, 2.52
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2199468 kB
$ du -h -d1 .bitcoin/
12.1G .bitcoin/indexes
4.3G .bitcoin/signet
2.7M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
124.8G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.2G 477.3G 48% /
$ bitcoind -version
Bitcoin Core daemon version v31.0rc2 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
943436
$ BH=$(bitcoin-cli getblockhash 943436); echo $BH
000000000000000000009cc963a29e2e3f68952fb84ddf266d1eeda6fd1612d3
$ bitcoin-cli getblockheader 000000000000000000009cc963a29e2e3f68952fb84ddf266d1eeda6fd1612d3
{
"hash": "000000000000000000009cc963a29e2e3f68952fb84ddf266d1eeda6fd1612d3",
"confirmations": 1,
"height": 943436,
"version": 872415232,
"versionHex": "34000000",
"merkleroot": "c2c2d5c9918a6dc674ee1c06cf18e3d0b62dbab3736c26bcfab8c7d83b1d3b4b",
"time": 1775173276,
"mediantime": 1775170800,
"nonce": 3467995653,
"bits": "17021a91",
"target": "000000000000000000021a910000000000000000000000000000000000000000",
"difficulty": 133793147307542.8,
"chainwork": "00000000000000000000000000000000000000011c76ab92d755f59a42a9b5bc",
"nTx": 1706,
"previousblockhash": "000000000000000000008ae8297925a8e01763662438e907ce9ccb50f11cd87e"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 9cc9 63a2 9e2e
3f68 952f b84d df26
6d1e eda6 fd16 12d3
$ : 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
943436 sf: 12d3
$ : 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 .
943436 sk: 12d3 b5
$ : 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 .
943436 ak: c314 b5
$ : Following is the jointkode
943436 jk: 12d3 c314 b5
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 14862,
"bytes": 10253872,
"usage": 58316160,
"total_fee": 0.01230466,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
119
## Current epoch estimation is +3.86%
## 1964 of 2016, i.e. 97%, 52 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.945816679108729e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli getnetworkhashps 2016 939455
1.037983005536264e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 943436,
"bestblock": "000000000000000000009cc963a29e2e3f68952fb84ddf266d1eeda6fd1612d3",
"txouts": 165183837,
"bogosize": 12942996004,
"muhash": "a0504f9fcd67a125e106784e965a39b094f7d07b8c3d19fbffc35cca8c9930a0",
"total_amount": 20010510.53023187,
"total_unspendable_amount": 230.09476813,
"block_info": {
"prevout_spent": 246.25280410,
"coinbase": 3.12996082,
"new_outputs_ex_coinbase": 246.24784328,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 943436
{
"avgfee": 290,
"avgfeerate": 0,
"avgtxsize": 1957,
"blockhash": "000000000000000000009cc963a29e2e3f68952fb84ddf266d1eeda6fd1612d3",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 943436,
"ins": 2004,
"maxfee": 203920,
"maxfeerate": 148,
"maxtxsize": 263916,
"medianfee": 17,
"mediantime": 1775170800,
"mediantxsize": 222,
"minfee": 16,
"minfeerate": 0,
"mintxsize": 151,
"outs": 3647,
"subsidy": 312500000,
"swtotal_size": 3332615,
"swtotal_weight": 3974882,
"swtxs": 1690,
"time": 1775173276,
"total_out": 24624784328,
"total_size": 3336872,
"total_weight": 3991910,
"totalfee": 496082,
"txs": 1706,
"utxo_increase": 1643,
"utxo_size_inc": 117540,
"utxo_increase_actual": 117,
"utxo_size_inc_actual": 8540
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2591178394,
"totalbytessent": 5329681798,
"timemillis": 1775173301828,
"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 v31.0rc2 - 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": 62167,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62167
}
}
$ halving.sh 943436
=====================================
Bitcoin Block Halving prediction
=====================================
bc=943436
gbt=1231006505
bbt=1775173276
This is average time to mine a block
(1775173276-1231006505)/943436
bts=576.7918483163157688324710
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 09:22:02 UTC 2028
-------------------------------------
Next palindrome will be 944449
predicted to happen at this time:
Thu Apr 9 17:59:26 UTC 2026
-------------------------------------
Current mining epoch number is 467.
The next fortnight happens in block
943488 and probably around this time:
Fri Apr 3 08:01:09 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
53cb09911245d260
50c22bb3c18ff9ccf388cc1dd721210fd780266fa55a7565f136069a70f52e26
9e428a26ea4cf73a
f1adb7a2ae179027c7d0ec417191f5922b82856cf31f683e8bb85443c3c7294e
cdff5a742eef141a
84793916eb3773cec2e104afbe78fe32aaf01b91977bd010a3250b024eee140c
93109da52ab42c55
b0d96ab486ddd61c1afe8ca5f9c90f40a1bac36c666e268a0b3e99da24de3145
aa553ee8cea85fe0
dc95a76ee26addfed640e64fc8fd12c9d792238dd7a6d94bedf4cfd7796354bb
f93f5ce6859a804e
8045ee797d8a8df5cc8d2982063eba965de9e58826bdc8edd5d3c2fe873d3772
28fedca04b7887ac
b0cfc453555c6174441b04b48773edd9e454227cd9ce8e3e2f4a4513fbaebd75
4fa380194c83be15
dbaea37e427a38914c2eb75b33a1907adad156ae750a00b761a79b9562e042d0
fbc25ca58b448a3a
feeff75b471a9327441a0156714b8f7d4b4fe9038a772448ccf88843331f985d
7b41f29724e760d6
4793347a490488bff5482d29af8f2ce370f6c6ea054e45eeffe97a56cd157fac
1957d89a90d1886f
e60144424987c961b9e8d1e05ec7026400946a8bee433ea851811401ce2f8eab
b0e7179ecbcba38c
5c86f0452454b80a3a2dc675c7c2d946241b23619e6a0b7fa9fe1be5097451ac
$ niceblack.sh $BH $BC
_|_| _| _| _|_|_|
_| _| _| _| _|
_|_|_| _|_|_|_| _|_|
_| _| _|
_|_|_| _| _|_|_|
_| _| _|_|_| _|_|_|
_| _| _| _|
_|_|_|_| _|_| _|_|_|
_| _| _| _|
_| _|_|_| _|_|
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 9cc9 63a2 9e2e 1f |
| 2. 3f68 952f b84d df26 2f |
| 3. 6d1e eda6 fd16 12d3 3f |
'=== ==== ==== ==== ==== ==='
jk: 12d3 c314 b5