# on receiving block 927255 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-10T09:38:42Z
# as written in the block header
2025-12-10T09:38:16Z
$ uptime # since last reboot
09:38:42 up 118 days, 19:29, 0 users, load average: 2.09, 1.43, 1.75
$ battery.sh
48%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 376524 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.8G .bitcoin/indexes
3.7G .bitcoin/signet
41.8M .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 834.5G 75.9G 92% /
$ bitcoind -version
Bitcoin Core daemon version libre-relay-v30.0-1
Copyright (C) 2009-2025 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
927255
$ BH=$(bitcoin-cli getblockhash 927255); echo $BH
00000000000000000001cc78969524f72ca50fe08f8654828bcb689114e8ba45
$ bitcoin-cli getblockheader 00000000000000000001cc78969524f72ca50fe08f8654828bcb689114e8ba45
{
"hash": "00000000000000000001cc78969524f72ca50fe08f8654828bcb689114e8ba45",
"confirmations": 1,
"height": 927255,
"version": 723140608,
"versionHex": "2b1a4000",
"merkleroot": "8bebf13f292036e96d53f751ff44bd4bf36a27f667c2c07103fb3eb5f0d75422",
"time": 1765359496,
"mediantime": 1765356740,
"nonce": 2297415334,
"bits": "1701e2a0",
"target": "00000000000000000001e2a00000000000000000000000000000000000000000",
"difficulty": 149301205959699.9,
"chainwork": "0000000000000000000000000000000000000000fc9fcf27ec33f67fe3f2b720",
"nTx": 936,
"previousblockhash": "00000000000000000001c85902cfd3afbaf9c61434acc991f6b595ae2ca5c1a4"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 cc78 9695 24f7
2ca5 .fe. 8f86 5482
8bcb 6891 14e8 ba45
$ : 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
927255 sf: ...1 .fe. ba45
$ : 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 .
927255 sk: ba45 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 .
927255 ak: cbad a4
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 37376,
"bytes": 30872012,
"usage": 176770240,
"total_fee": 0.03599022,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
116
## Current epoch estimation is -0.31%
## 1911 of 2016, i.e. 94%, 105 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.065083883143814e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli getnetworkhashps 2016 923327
1.089721987248796e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 927255,
"bestblock": "00000000000000000001cc78969524f72ca50fe08f8654828bcb689114e8ba45",
"txouts": 164732346,
"bogosize": 12911229899,
"muhash": "c65683cd628eb0a3df82397ec13d742c1948f5812fe9d0d8ffef5ac46a5dfa36",
"total_amount": 19959944.91069240,
"total_unspendable_amount": 230.08930760,
"block_info": {
"prevout_spent": 1496.06504104,
"coinbase": 3.13317882,
"new_outputs_ex_coinbase": 1496.05686221,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 927255
{
"avgfee": 874,
"avgfeerate": 3,
"avgtxsize": 444,
"blockhash": "00000000000000000001cc78969524f72ca50fe08f8654828bcb689114e8ba45",
"feerate_percentiles": [
1,
1,
1,
2,
4
],
"height": 927255,
"ins": 2196,
"maxfee": 106933,
"maxfeerate": 73,
"maxtxsize": 29539,
"medianfee": 322,
"mediantime": 1765356740,
"mediantxsize": 224,
"minfee": 99,
"minfeerate": 1,
"mintxsize": 150,
"outs": 2085,
"subsidy": 312500000,
"swtotal_size": 360383,
"swtotal_weight": 834158,
"swtxs": 850,
"time": 1765359496,
"total_out": 149605686222,
"total_size": 415222,
"total_weight": 1053514,
"totalfee": 817882,
"txs": 936,
"utxo_increase": -111,
"utxo_size_inc": -6750,
"utxo_increase_actual": -176,
"utxo_size_inc_actual": -12572
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 17196020093,
"totalbytessent": 41213340735,
"timemillis": 1765359522641,
"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 libre-relay-v30.0-1 - server 70016/Satoshi:30.0.0/
ipv4 npr total block libre
in 21 2 23
out 14 0 14 2 4
total 35 2 37
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 63776,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63776
}
}
$ halving.sh 927255
=====================================
Bitcoin Block Halving prediction
=====================================
bc=927255
gbt=1231006505
bbt=1765359496
This is average time to mine a block
(1765359496-1231006505)/927255
bts=576.2734250304123133201618
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 8 02:09:37 UTC 2028
-------------------------------------
Next palindrome will be 927729
predicted to happen at this time:
Sat Dec 13 13:30:49 UTC 2025
-------------------------------------
Current mining epoch number is 459.
The next fortnight happens in block
927360 and probably around this time:
Thu Dec 11 02:26:44 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
15 "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
bb8b90ec8789e047
a7937bf0089a8858dcd13203ee903dd8d43c2d8ecd6344504905b5a0221e637f
a579f38592a3c8c9
7545c86ba34c839682f356000953fe6d932d82d356b8c30851abb544383732a3
3c8ab28e670adb04
087fb761b139f2c688d75063e50328a52311eab798a73d0ef46cc4b5cf1d8661
2f5693616cc0ebfb
ce5ba104dbd6648b92620faef6b2dcf117f6c0c33ba84c678b367b39fcd9537f
e4fba50948e10038
2cf25ece4c9c3ac593330f2722fcaa0894214300cda88a2d7eca00a73dd41006
3fd41ff0c3027f6a
ba9d0c837a51b420dc2750c073114047ba88a3c76bb3199400587479c6417e61
275b67fa9f275599
a7503a80a27a77483049d71611e0c227a2f14692d9826368d3289ab0213bd241
87c6976092424dcb
c9d8f5eefe1e6832f59ac797935ac1609a5c1d60d953c89ee25bb87c51a3baa2
b84b0a562bc7fbfd
a54299641608f57278034bc743bd186a72411a2cf3eea684bd47939b6348f97d
c698ac1be4e90df3
e32cffda209c9651e30a75cea1c517ea6365d5c69795154f1b3891661570e13f
7b9a1ca6d304d08a
b69c606e299db6dd88a026cabcd8e4453abfe7abd3b795e35fcdde1daefddcd4
952c29ffb60124fb
bafb0b01797fb1679666fbabbd4cf50035b24a744e2ec41c225e903d79fca59a
14719f9e07abf14c
2c28b973e0ba390f1ab6a3e8845fd46d6b4bc054057ecfed55e8a568d1f7a589
68c8ba8c3e4db1cf
18c40f3df3aad0dac92c16c36775de7aa33d998e2548acd82b549e4db75a3148
7d86c05aacd07b59
7aea4fd4308bb096b7231e63b83cfa501b3c5d6449073107a9e94ef618a9076a
$ niceblack.sh $BH $BC
_ _ _
| | | | | |
| | | | __ __ | |
|/ \_|/ / \_/ |/_)
\_/ |__/\__/ \___/| \_/
__ _______ __ ____ ____
/ |/ ) // )| |
\_/| / / / |___ |___
| / / / \ \
|/___/ /___\___/\___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 cc78 9695 24f7 1f |
| 2. 2ca5 .fe. 8f86 5482 2f |
| 3. 8bcb 6891 14e8 ba45 3f |
'=== ==== ==== ==== ==== ==='
ak: cbad a4