# on receiving block 947926 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-04T21:45:52Z
# as written in the block header
2026-05-04T21:45:43Z
$ uptime # since last reboot
21:45:52 up 46 days, 12:38, 0 users, load average: 6.76, 2.61, 1.92
$ battery.sh
156%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2014652 kB
$ du -h -d1 .bitcoin/
12.2G .bitcoin/indexes
4.4G .bitcoin/signet
2.6M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.9G .bitcoin/chainstate
125.4G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 434.7G 475.7G 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
947926
$ BH=$(bitcoin-cli getblockhash 947926); echo $BH
00000000000000000001c5b730e6bf3109234eadb58b514449738a452524ce93
$ bitcoin-cli getblockheader 00000000000000000001c5b730e6bf3109234eadb58b514449738a452524ce93
{
"hash": "00000000000000000001c5b730e6bf3109234eadb58b514449738a452524ce93",
"confirmations": 1,
"height": 947926,
"version": 770359296,
"versionHex": "2deac000",
"merkleroot": "4c6923bc9b8ca941068d5dda7336f90f4a9ce51c0fb29f2ef1dabb459f7ee3d0",
"time": 1777931143,
"mediantime": 1777928534,
"nonce": 1339880806,
"bits": "17021ff0",
"target": "000000000000000000021ff00000000000000000000000000000000000000000",
"difficulty": 132472011079030.5,
"chainwork": "000000000000000000000000000000000000000124fcfab74ae684b6b21ac735",
"nTx": 5706,
"previousblockhash": "0000000000000000000212f0a85506b5c65e4891e8a9d06cd2ce5c6ef69e0786"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 c5b7 3.e6 bf31
.923 4ead b58b 5144
4973 8a45 2524 ce93
$ : 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
947926 sf: ...1 3.e6 .923 ce93
$ : 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 .
947926 sk: ce93 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 .
947926 ak: c1a1 94
$ : Following is the jointkode
947926 jk: ce93 c1a1 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 26241,
"bytes": 30249432,
"usage": 147224728,
"total_fee": 0.04127602,
"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
136
## Current epoch estimation is -1.69%
## 406 of 2016, i.e. 20%, 1610 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.319879122198048e+20
$ bitcoin-cli getnetworkhashps 2016 947519
9.480332550563884e+20
$ bitcoin-cli getnetworkhashps 2016 945503
9.704094538460986e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 947926,
"bestblock": "00000000000000000001c5b730e6bf3109234eadb58b514449738a452524ce93",
"txouts": 165243707,
"bogosize": 12946493567,
"muhash": "4b0475406f2cf2e38a3fa44f3e25ab3670fa9e26a0ceb73ea905fd818fb3a0e2",
"total_amount": 20024541.77824334,
"total_unspendable_amount": 230.09675666,
"block_info": {
"prevout_spent": 1780.85059431,
"coinbase": 3.13681103,
"new_outputs_ex_coinbase": 1780.83878328,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 947926
{
"avgfee": 207,
"avgfeerate": 1,
"avgtxsize": 272,
"blockhash": "00000000000000000001c5b730e6bf3109234eadb58b514449738a452524ce93",
"feerate_percentiles": [
0,
0,
0,
1,
2
],
"height": 947926,
"ins": 7306,
"maxfee": 84800,
"maxfeerate": 401,
"maxtxsize": 59035,
"medianfee": 35,
"mediantime": 1777928534,
"mediantxsize": 222,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 150,
"outs": 12306,
"subsidy": 312500000,
"swtotal_size": 1461710,
"swtotal_weight": 3628154,
"swtxs": 5585,
"time": 1777931143,
"total_out": 178083878328,
"total_size": 1552653,
"total_weight": 3991926,
"totalfee": 1181103,
"txs": 5706,
"utxo_increase": 5000,
"utxo_size_inc": 358382,
"utxo_increase_actual": 557,
"utxo_size_inc_actual": 41298
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 805128513,
"totalbytessent": 1955618984,
"timemillis": 1777931153101,
"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 15 1 16
out 10 0 10 2
total 25 1 26
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 66856,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 66856
}
}
$ halving.sh 947926
=====================================
Bitcoin Block Halving prediction
=====================================
bc=947926
gbt=1231006505
bbt=1777931143
This is average time to mine a block
(1777931143-1231006505)/947926
bts=576.9691526879179514878255
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 16 13:04:52 UTC 2028
-------------------------------------
Next palindrome will be 948849
predicted to happen at this time:
Mon May 11 01:41:25 UTC 2026
-------------------------------------
Current mining epoch number is 470.
The next fortnight happens in block
949536 and probably around this time:
Fri May 15 15:47:43 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
9 "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
f6ec3ac7bfaf9e16
bcaa63a01b594bd138e5ec157f4b21a239b616c1e035d5315ca1cadccbbe590d
80498a2486d1edfc
dcbddfc89ec8ebc4621ee1cf001fd89cb1263c99b5ccfb9a3605f0af86baabf4
471eb490553e1de4
3e0475d1b4bbe97ca6640ff7a9388ebcd4e73bd189d2ea3372f2c946ca6061d7
84df2eb6646ffcb6
e1563625553e21951790d3f45aa4f71278f7a5b55885ee20035831ffccb919ac
3b88200106a3f2ec
035ce4c854454959e994b247779eddbb6978345073b7ab4cdda2c340358f4c62
785ecefa522498c6
85d8ec6361474b454e8c1d2f657db7248f34290bce777d36c9acc43c97996714
6fd8cf508542a08c
0b44b930ddaee964a39ed1e061250bfc716131c9da4b425029036628e98a6408
0ce2af244f326424
0624450dbb3d6c61b0a55cca87a9e4c68c99b531f3a793e20a39533e64b21e13
$ niceblack.sh $BH $BC
___ _ _ ______ ___ ___ __
/ _ \| || |____ | / _ \__ \ / /
| (_) | || |_ / / | (_) | ) / /_
\__, |__ _|/ / \__, |/ / '_ \
/ / | | / / / // /| (_) |
/_/ |_|/_/ /_/|____\___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 c5b7 3.e6 bf31 1f |
| 2. .923 4ead b58b 5144 2f |
| 3. 4973 8a45 2524 ce93 3f |
'=== ==== ==== ==== ==== ==='
jk: ce93 c1a1 94