# on receiving block 955689 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-06-27T17:48:42Z
# as written in the block header
2026-06-27T17:48:19Z
$ uptime # since last reboot
17:48:42 up 1 day, 10:19, 0 users, load average: 1.08, 1.06, 1.17
$ battery.sh
99%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2081648 kB
$ du -h -d1 .bitcoin/
12.3G .bitcoin/indexes
4.6G .bitcoin/signet
2.6M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.5G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 434.9G 475.6G 48% /
$ bitcoind -version
$ BC=$(bitcoin-cli getblockcount); echo $BC
955689
$ BH=$(bitcoin-cli getblockhash 955689); echo $BH
00000000000000000001e1782bc2fe77916311da5dad6fad52535ee3510b7a1f
$ bitcoin-cli getblockheader 00000000000000000001e1782bc2fe77916311da5dad6fad52535ee3510b7a1f
{
"hash": "00000000000000000001e1782bc2fe77916311da5dad6fad52535ee3510b7a1f",
"confirmations": 1,
"height": 955689,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "d317d0d4412bb8787520ad880f00691fd6075faf26abcf10e9e219e3626cbc25",
"time": 1782582499,
"mediantime": 1782580532,
"nonce": 2050052820,
"bits": "17021a42",
"target": "000000000000000000021a420000000000000000000000000000000000000000",
"difficulty": 133869853540305.4,
"chainwork": "000000000000000000000000000000000000000133592826e96d3d94f77c1d76",
"nTx": 5219,
"previousblockhash": "0000000000000000000109488c7ee51f66fef2bab6766fca73b4e3f8bec52e7c"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 e178 2bc2 fe77
9163 11da 5dad 6fad
5253 5ee3 51.b 7a1f
$ : 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
955689 sf: ...1 51.b 7a1f
$ : 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 .
955689 sk: 7a1f a4
$ : 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 .
955689 ak: a1d1 a4
$ : Following is the jointkode
955689 jk: 7a1f a1d1 a4
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 51847,
"bytes": 30093691,
"usage": 164084856,
"total_fee": 0.05452925,
"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
181
## Current epoch estimation is +1.33%
## 105 of 2016, i.e. 5%, 1911 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.704658032788185e+20
$ bitcoin-cli getnetworkhashps 2016 955583
9.577176399839705e+20
$ bitcoin-cli getnetworkhashps 2016 953567
8.939523168672514e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 955689,
"bestblock": "00000000000000000001e1782bc2fe77916311da5dad6fad52535ee3510b7a1f",
"txouts": 166052237,
"bogosize": 13005492826,
"muhash": "6cc7bb1c4c7d543e2582d68bd45bc40d49daa5b7ab78e26b1278b2628b433be7",
"total_amount": 20048801.13963908,
"total_unspendable_amount": 230.11036092,
"block_info": {
"prevout_spent": 2127.33257272,
"coinbase": 3.14078834,
"new_outputs_ex_coinbase": 2127.31678438,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 955689
{
"avgfee": 302,
"avgfeerate": 1,
"avgtxsize": 301,
"blockhash": "00000000000000000001e1782bc2fe77916311da5dad6fad52535ee3510b7a1f",
"feerate_percentiles": [
0,
0,
1,
1,
3
],
"height": 955689,
"ins": 7356,
"maxfee": 100000,
"maxfeerate": 713,
"maxtxsize": 59038,
"medianfee": 77,
"mediantime": 1782580532,
"mediantxsize": 221,
"minfee": 41,
"minfeerate": 0,
"mintxsize": 150,
"outs": 11972,
"subsidy": 312500000,
"swtotal_size": 1488326,
"swtotal_weight": 3660353,
"swtxs": 5150,
"time": 1782582499,
"total_out": 212731678438,
"total_size": 1571230,
"total_weight": 3991969,
"totalfee": 1578834,
"txs": 5219,
"utxo_increase": 4616,
"utxo_size_inc": 335277,
"utxo_increase_actual": 973,
"utxo_size_inc_actual": 74778
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 809215977,
"totalbytessent": 1587771100,
"timemillis": 1782582523017,
"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": 70705,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 70705
}
}
$ halving.sh 955689
=====================================
Bitcoin Block Halving prediction
=====================================
bc=955689
gbt=1231006505
bbt=1782582499
This is average time to mine a block
(1782582499-1231006505)/955689
bts=577.1494878046228379495443
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Sat Mar 18 17:40:44 UTC 2028
-------------------------------------
Next palindrome will be 956659
predicted to happen at this time:
Sat Jul 4 05:18:54 UTC 2026
-------------------------------------
Current mining epoch number is 474.
The next fortnight happens in block
957600 and probably around this time:
Fri Jul 10 12:10:31 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
2601ddc55b6e4c78
58cb16155e8120ee38c3566ee5a44be2ba8a82c5dc5db6cebc08e9c1b2ca8ae7
b00b70d17d25a871
6da262fcc6598068276872f5c607a2234f289459eb57e1095b87baaa0303f57a
fcbd6c2fd6a60ce5
50eed6f1991bbdd07e637e2fd2f8ecdd03688bbcf72887924c47d7b1b4003a69
ea14198bb74eceb2
384a663e2f522cd4fae2b92bd2e98078280a448dcb952f8a0aa56c11064a8c1f
e646814dfc137ecb
c564c9bd8b58cdaac34254004c5e8caa762070c582a12c093cc49159023a892d
920d3dff74792dc2
209fb45a1ba6add02df0ae9ff0b612d099da582be768b27d3cf8addb64cfb8ab
493faac3367fbbe9
8b9fbc1e90b4dd9667a13a6637357b5513e7f9510799e96780d12d193fe503f6
10bebfd206e9d67d
7ee2242f23e0b48d82871cd55106c5f467645d6e2262f8f390163cfaf7bccaa9
8c4a623011b31bfc
02bb57960311b7697a31735862c727720078e43dec444e807b43bf044e9b29a0
b80136b27c7e03c9
41ec65d22835ae9ec5bf9ec41485056e3538fcb64938004fda00976536f2f47b
b73442fb61ed0981
9d4213d6555230ce16bf3d535979f9b2b00f517d1500d395e7ace97cc61b2e3d
$ niceblack.sh $BH $BC
____ ____________
/ __ \/ ____/ ____/
/ /_/ /___ \/___ \
\__, /___/ /___/ /
/____/_____/_____/
_____ ____ ____
/ ___/( __ )/ __ \
/ __ \/ __ / /_/ /
/ /_/ / /_/ /\__, /
\____/\____//____/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 e178 2bc2 fe77 1f |
| 2. 9163 11da 5dad 6fad 2f |
| 3. 5253 5ee3 51.b 7a1f 3f |
'=== ==== ==== ==== ==== ==='
jk: 7a1f a1d1 a4