# on receiving block 943493 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-03T10:09:14Z
# as written in the block header
2026-04-03T10:08:54Z
$ uptime # since last reboot
10:09:14 up 15 days, 1:02, 0 users, load average: 2.14, 3.01, 2.95
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2103020 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 433.1G 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
943493
$ BH=$(bitcoin-cli getblockhash 943493); echo $BH
000000000000000000000f9b97b40c6ca196b21148967581f10b00a1bdd5655e
$ bitcoin-cli getblockheader 000000000000000000000f9b97b40c6ca196b21148967581f10b00a1bdd5655e
{
"hash": "000000000000000000000f9b97b40c6ca196b21148967581f10b00a1bdd5655e",
"confirmations": 1,
"height": 943493,
"version": 536936448,
"versionHex": "20010000",
"merkleroot": "42bbf1354d7ab13609a25bbf8fe116e7f5c333b3265a5f910af47444a22602c9",
"time": 1775210934,
"mediantime": 1775208520,
"nonce": 481553705,
"bits": "17020684",
"target": "0000000000000000000206840000000000000000000000000000000000000000",
"difficulty": 138966872071213.2,
"chainwork": "00000000000000000000000000000000000000011c91dfe8e5e523c0b3579bb0",
"nTx": 5771,
"previousblockhash": "00000000000000000001f7cdb252b7c1c551f21b516877be2fdd26ebf5cf5d9b"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... .f9b 97b4 .c6c
a196 b211 4896 7581
f1.b ..a1 bdd5 655e
$ : 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
943493 sf: .f9b .c6c f1.b ..a1 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 .
943493 sk: 655e 75
$ : 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 .
943493 ak: 93f2 75
$ : Following is the jointkode
943493 jk: 655e 93f2 75
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 17977,
"bytes": 21331364,
"usage": 113155128,
"total_fee": 0.02485318,
"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
116
## Current epoch estimation is -0.03%
## 5 of 2016, i.e. 0%, 2011 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.93873178493759e+20
$ bitcoin-cli getnetworkhashps 2016 943487
9.942372658458654e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 943493,
"bestblock": "000000000000000000000f9b97b40c6ca196b21148967581f10b00a1bdd5655e",
"txouts": 165194195,
"bogosize": 12943721997,
"muhash": "07297a87fbf9824e40d45f47be9a2cf0cea71f11b5bcdf5a898e233fb415d894",
"total_amount": 20010688.65522921,
"total_unspendable_amount": 230.09477079,
"block_info": {
"prevout_spent": 595.40170244,
"coinbase": 3.12861635,
"new_outputs_ex_coinbase": 595.39808609,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 943493
{
"avgfee": 62,
"avgfeerate": 0,
"avgtxsize": 293,
"blockhash": "000000000000000000000f9b97b40c6ca196b21148967581f10b00a1bdd5655e",
"feerate_percentiles": [
0,
0,
0,
0,
1
],
"height": 943493,
"ins": 6998,
"maxfee": 32496,
"maxfeerate": 31,
"maxtxsize": 41410,
"medianfee": 19,
"mediantime": 1775208520,
"mediantxsize": 222,
"minfee": 15,
"minfeerate": 0,
"mintxsize": 150,
"outs": 13224,
"subsidy": 312500000,
"swtotal_size": 1685926,
"swtotal_weight": 3958330,
"swtxs": 5742,
"time": 1775210934,
"total_out": 59539808609,
"total_size": 1694326,
"total_weight": 3991930,
"totalfee": 361635,
"txs": 5771,
"utxo_increase": 6226,
"utxo_size_inc": 427539,
"utxo_increase_actual": 1210,
"utxo_size_inc_actual": 89127
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2767899867,
"totalbytessent": 5665906743,
"timemillis": 1775210954886,
"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 14 1 15
out 10 0 10 2
total 24 1 25
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62027,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62027
}
}
$ halving.sh 943493
=====================================
Bitcoin Block Halving prediction
=====================================
bc=943493
gbt=1231006505
bbt=1775210934
This is average time to mine a block
(1775210934-1231006505)/943493
bts=576.7969155076767843780670
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 10:50:43 UTC 2028
-------------------------------------
Next palindrome will be 944449
predicted to happen at this time:
Thu Apr 9 19:19:11 UTC 2026
-------------------------------------
Current mining epoch number is 468.
The next fortnight happens in block
945504 and probably around this time:
Thu Apr 16 20:21:12 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
9e428a26ea4cf73a
f1adb7a2ae179027c7d0ec417191f5922b82856cf31f683e8bb85443c3c7294e
cdff5a742eef141a
84793916eb3773cec2e104afbe78fe32aaf01b91977bd010a3250b024eee140c
93109da52ab42c55
b0d96ab486ddd61c1afe8ca5f9c90f40a1bac36c666e268a0b3e99da24de3145
aa553ee8cea85fe0
dc95a76ee26addfed640e64fc8fd12c9d792238dd7a6d94bedf4cfd7796354bb
28fedca04b7887ac
b0cfc453555c6174441b04b48773edd9e454227cd9ce8e3e2f4a4513fbaebd75
4fa380194c83be15
dbaea37e427a38914c2eb75b33a1907adad156ae750a00b761a79b9562e042d0
fbc25ca58b448a3a
feeff75b471a9327441a0156714b8f7d4b4fe9038a772448ccf88843331f985d
7b41f29724e760d6
4793347a490488bff5482d29af8f2ce370f6c6ea054e45eeffe97a56cd157fac
1957d89a90d1886f
e60144424987c961b9e8d1e05ec7026400946a8bee433ea851811401ce2f8eab
cfe855ce8ca537e1
46dc23905ab0e89d5ea5fe14f882eb96cb68c1f0e28f96d6f267be68729cb9a0
793aa6b16f184fe2
288f399824371fc9616fd44a0026b47aa68c3b423c5d1569d4d8c16b69bec790
$ niceblack.sh $BH $BC
| | |
_ \ | _ \ _| | /
_.__/_|\___/\__|_\_\
_ \ | |__ / | | _ \__ /
\_ /__ _|_ \__ _|\_ / _ \
_/ _|___/ _| _/ ___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... .f9b 97b4 .c6c 1f |
| 2. a196 b211 4896 7581 2f |
| 3. f1.b ..a1 bdd5 655e 3f |
'=== ==== ==== ==== ==== ==='
jk: 655e 93f2 75