# on receiving block 949940 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-05-18T11:59:15Z
# as written in the block header
2026-05-18T11:58:57Z
$ uptime # since last reboot
11:59:15 up 60 days, 2:52, 0 users, load average: 3.06, 2.33, 2.30
$ battery.sh
163%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1490700 kB
$ du -h -d1 .bitcoin/
12.2G .bitcoin/indexes
4.4G .bitcoin/signet
2.6M .bitcoin/wallets
97.8G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.3G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 434.6G 475.9G 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
949940
$ BH=$(bitcoin-cli getblockhash 949940); echo $BH
000000000000000000010c728762443a4a168911cb925d8fd23acfb082adcfe4
$ bitcoin-cli getblockheader 000000000000000000010c728762443a4a168911cb925d8fd23acfb082adcfe4
{
"hash": "000000000000000000010c728762443a4a168911cb925d8fd23acfb082adcfe4",
"confirmations": 1,
"height": 949940,
"version": 544194560,
"versionHex": "206fc000",
"merkleroot": "4c3c56a94735ae0b75dd5f6e3e1cfe2f66659eb90f20919bd9e9ad22bbc740e2",
"time": 1779105537,
"mediantime": 1779101537,
"nonce": 784068162,
"bits": "17020f79",
"target": "000000000000000000020f790000000000000000000000000000000000000000",
"difficulty": 136607070854775.1,
"chainwork": "000000000000000000000000000000000000000128b6cd833b8af597b1927f93",
"nTx": 3164,
"previousblockhash": "0000000000000000000170e0683d812bc7c02d2d7f4ed85fd3d71dbdca979d84"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 .c72 8762 443a
4a16 8911 cb92 5d8f
d23a cfb. 82ad cfe4
$ : 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
949940 sf: ...1 .c72 cfb. cfe4
$ : 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 .
949940 sk: cfe4 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 .
949940 ak: caf2 94
$ : Following is the jointkode
949940 jk: cfe4 caf2 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 71538,
"bytes": 36435958,
"usage": 201477368,
"total_fee": 0.06222306,
"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
170
## Current epoch estimation is +0.51%
## 404 of 2016, i.e. 20%, 1612 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.821435966367085e+20
$ bitcoin-cli getnetworkhashps 2016 949535
9.770940180508523e+20
$ bitcoin-cli getnetworkhashps 2016 947519
9.480332550563884e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 949940,
"bestblock": "000000000000000000010c728762443a4a168911cb925d8fd23acfb082adcfe4",
"txouts": 165193325,
"bogosize": 12943303989,
"muhash": "663f8e1d3c8b6a59e3e84b4b6cb789ad939e15cd7a54cafca6886199d776695e",
"total_amount": 20030835.52791841,
"total_unspendable_amount": 230.09708159,
"block_info": {
"prevout_spent": 5350.53913888,
"coinbase": 3.15328198,
"new_outputs_ex_coinbase": 5350.51085689,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 949940
{
"avgfee": 894,
"avgfeerate": 2,
"avgtxsize": 555,
"blockhash": "000000000000000000010c728762443a4a168911cb925d8fd23acfb082adcfe4",
"feerate_percentiles": [
1,
1,
2,
3,
4
],
"height": 949940,
"ins": 9478,
"maxfee": 131512,
"maxfeerate": 292,
"maxtxsize": 108110,
"medianfee": 322,
"mediantime": 1779101537,
"mediantxsize": 222,
"minfee": 30,
"minfeerate": 0,
"mintxsize": 150,
"outs": 7768,
"subsidy": 312500000,
"swtotal_size": 1677298,
"swtotal_weight": 3668779,
"swtxs": 3006,
"time": 1779105537,
"total_out": 535051085690,
"total_size": 1758553,
"total_weight": 3993799,
"totalfee": 2828198,
"txs": 3164,
"utxo_increase": -1710,
"utxo_size_inc": -122865,
"utxo_increase_actual": -2566,
"utxo_size_inc_actual": -186367
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 5552599526,
"totalbytessent": 12273441041,
"timemillis": 1779105556375,
"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": 69546,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 69546
}
}
$ halving.sh 949940
=====================================
Bitcoin Block Halving prediction
=====================================
bc=949940
gbt=1231006505
bbt=1779105537
This is average time to mine a block
(1779105537-1231006505)/949940
bts=576.9821831040033012576570
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Thu Mar 16 16:52:54 UTC 2028
-------------------------------------
Next palindrome will be 949949
predicted to happen at this time:
Mon May 18 13:25:29 UTC 2026
-------------------------------------
Current mining epoch number is 471.
The next fortnight happens in block
951552 and probably around this time:
Fri May 29 06:20:32 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
10 "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
84608400b0618562
7af1f5e36df042df722c4e6516461e5e0547d35e006641145b12d3f789d981f4
03e6e975acae6a2c
0fd63d9405ea7e789fd54a5e3cb1c9ad970ff213d90c955385524e5bcc90fcc7
34ddbc60bb1942e1
4d9cd7beec41bf7d38f143aa7df095fabd6829cca950e4c90704cc4d8923d959
1b610f06c935029b
eea8c67c733b2e5ccc41d4a49d4ca69aea0ab16e402fc2f6afd40823b3dd73a0
d582e95bdd3788ff
71bdeb9a723606132237ba5669801e2a4aec77530e0cd441e9489175d4dd903e
3b8136a5b4352438
5bb9913008ebd57d4ef635f33ea788262fb85ddd35d54acef8a36a30eb9b484f
0dd7498f9e57aafe
9d85358a70b2e0871b1b745f5de9af39209fbc6e17a2bc3f698019b4fa79996d
9b4c3531d93af896
4524967b749a8e92cf4a45b7f66cce73769df2fda641349a1874f8e58b42db76
d3b8cc8bc831e058
5a38b4be731e638f25339b8485b2edd481bbefacda9d20f29ab75d957fcfbbfb
003428f23a2eace5
704896119a6748977b61fb726c7a07ea6317364a4f05841b802bcd0f8d96fe46
$ niceblack.sh $BH $BC
___ _ _ ___
/ _ \| || | / _ \
| (_) | || || (_) |
\__, |__ _\__, |
/_/ |_| /_/
___ _ _ ___
/ _ \| || | / _ \
| (_) | || |_| | | |
\__, |__ _| |_| |
/_/ |_| \___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 .c72 8762 443a 1f |
| 2. 4a16 8911 cb92 5d8f 2f |
| 3. d23a cfb. 82ad cfe4 3f |
'=== ==== ==== ==== ==== ==='
jk: cfe4 caf2 94