# on receiving block 947818 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-04T03:15:15Z
# as written in the block header
2026-05-04T03:15:16Z
$ uptime # since last reboot
03:15:15 up 45 days, 18:08, 0 users, load average: 0.51, 0.93, 1.40
$ battery.sh
156%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2020892 kB
$ du -h -d1 .bitcoin/
12.2G .bitcoin/indexes
4.4G .bitcoin/signet
2.6M .bitcoin/wallets
97.6G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.0G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 434.3G 476.1G 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
947818
$ BH=$(bitcoin-cli getblockhash 947818); echo $BH
0000000000000000000111fa110867071f618263c7172c29176133c5be44bef3
$ bitcoin-cli getblockheader 0000000000000000000111fa110867071f618263c7172c29176133c5be44bef3
{
"hash": "0000000000000000000111fa110867071f618263c7172c29176133c5be44bef3",
"confirmations": 1,
"height": 947818,
"version": 537395200,
"versionHex": "20080000",
"merkleroot": "e7323f580554c97ac51b25a4454e7082e8c83bb33abbbf2b691cc6ae0750ab5d",
"time": 1777864516,
"mediantime": 1777862377,
"nonce": 2081676715,
"bits": "17021ff0",
"target": "000000000000000000021ff00000000000000000000000000000000000000000",
"difficulty": 132472011079030.5,
"chainwork": "000000000000000000000000000000000000000124ca2665c0f90cc9c1b95b31",
"nTx": 4881,
"previousblockhash": "000000000000000000019925c15e5e84d56057a3096f7aaccec58c98ddf274b0"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 11fa 11.8 67.7
1f61 8263 c717 2c29
1761 33c5 be44 bef3
$ : 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
947818 sf: ...1 11.8 67.7 bef3
$ : 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 .
947818 sk: bef3 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 .
947818 ak: 35db 94
$ : Following is the jointkode
947818 jk: bef3 35db 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 27532,
"bytes": 29880638,
"usage": 145727664,
"total_fee": 0.04053840,
"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
135
## Current epoch estimation is -1.14%
## 298 of 2016, i.e. 14%, 1718 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.371378755656231e+20
$ bitcoin-cli getnetworkhashps 2016 947519
9.480332550563884e+20
$ bitcoin-cli getnetworkhashps 2016 945503
9.704094538460986e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 947818,
"bestblock": "0000000000000000000111fa110867071f618263c7172c29176133c5be44bef3",
"txouts": 165326252,
"bogosize": 12952547981,
"muhash": "c98dd861573350043e85ad2e1c57bac9577169b42483d4863586fb249da022bf",
"total_amount": 20024204.27829587,
"total_unspendable_amount": 230.09670413,
"block_info": {
"prevout_spent": 1933.85404542,
"coinbase": 3.13440029,
"new_outputs_ex_coinbase": 1933.84464513,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 947818
{
"avgfee": 192,
"avgfeerate": 0,
"avgtxsize": 321,
"blockhash": "0000000000000000000111fa110867071f618263c7172c29176133c5be44bef3",
"feerate_percentiles": [
0,
0,
0,
1,
2
],
"height": 947818,
"ins": 7966,
"maxfee": 60014,
"maxfeerate": 60,
"maxtxsize": 97213,
"medianfee": 36,
"mediantime": 1777862377,
"mediantxsize": 222,
"minfee": 15,
"minfeerate": 0,
"mintxsize": 150,
"outs": 10445,
"subsidy": 312500000,
"swtotal_size": 1436736,
"swtotal_weight": 3466782,
"swtxs": 4791,
"time": 1777864516,
"total_out": 193384464513,
"total_size": 1567969,
"total_weight": 3991714,
"totalfee": 940029,
"txs": 4881,
"utxo_increase": 2479,
"utxo_size_inc": 165914,
"utxo_increase_actual": -1441,
"utxo_size_inc_actual": -114834
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 564964821,
"totalbytessent": 1389058279,
"timemillis": 1777864516200,
"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 18 1 19
out 10 0 10 2
total 28 1 29
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 66850,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 66850
}
}
$ halving.sh 947818
=====================================
Bitcoin Block Halving prediction
=====================================
bc=947818
gbt=1231006505
bbt=1777864516
This is average time to mine a block
(1777864516-1231006505)/947818
bts=576.9646008362356103855271
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 16 11:45:12 UTC 2028
-------------------------------------
Next palindrome will be 948849
predicted to happen at this time:
Mon May 11 00:29:26 UTC 2026
-------------------------------------
Current mining epoch number is 470.
The next fortnight happens in block
949536 and probably around this time:
Fri May 15 14:35:41 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
8 "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
304f3f4f2dc36be5
83c5f1d773fbcd2cb554d2066dc0d4932ea28e2377128a876c65eee214616368
a2b6893175c4ce4f
dcf1ed68904605e8aeb831d82521d4704d26805adc34f96db06ad7d63753bea2
f6ec3ac7bfaf9e16
bcaa63a01b594bd138e5ec157f4b21a239b616c1e035d5315ca1cadccbbe590d
80498a2486d1edfc
dcbddfc89ec8ebc4621ee1cf001fd89cb1263c99b5ccfb9a3605f0af86baabf4
471eb490553e1de4
3e0475d1b4bbe97ca6640ff7a9388ebcd4e73bd189d2ea3372f2c946ca6061d7
84df2eb6646ffcb6
e1563625553e21951790d3f45aa4f71278f7a5b55885ee20035831ffccb919ac
3b88200106a3f2ec
035ce4c854454959e994b247779eddbb6978345073b7ab4cdda2c340358f4c62
4c429b4ec15a99e8
de66b0495b8f23ffdead625d7a1718d383f2235fbd2eb55bca527d2a7a079c35
$ niceblack.sh $BH $BC
___ _ _ ______ ___ __ ___
/ _ \| || |____ | / _ \/_ |/ _ \
| (_) | || |_ / / | (_) || | (_) |
\__, |__ _|/ / > _ < | |> _ <
/ / | | / / | (_) || | (_) |
/_/ |_|/_/ \___/ |_|\___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 11fa 11.8 67.7 1f |
| 2. 1f61 8263 c717 2c29 2f |
| 3. 1761 33c5 be44 bef3 3f |
'=== ==== ==== ==== ==== ==='
jk: bef3 35db 94