# on receiving block 927548 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-12T08:45:58Z
# as written in the block header
2025-12-12T08:45:35Z
$ uptime # since last reboot
08:45:58 up 120 days, 18:36, 0 users, load average: 2.09, 1.93, 1.84
$ battery.sh
50%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1730844 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.8G .bitcoin/indexes
3.8G .bitcoin/signet
41.8M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.8G .bitcoin/chainstate
125.8G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 835.0G 75.5G 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
927548
$ BH=$(bitcoin-cli getblockhash 927548); echo $BH
00000000000000000001631a9c2346e8ef7f5a4910ea7d2050a3b9a80b0f60a5
$ bitcoin-cli getblockheader 00000000000000000001631a9c2346e8ef7f5a4910ea7d2050a3b9a80b0f60a5
{
"hash": "00000000000000000001631a9c2346e8ef7f5a4910ea7d2050a3b9a80b0f60a5",
"confirmations": 1,
"height": 927548,
"version": 661266432,
"versionHex": "276a2000",
"merkleroot": "ec9c5fb1ca088ff1a1e1d4053c990ddc1de8f388b2d3f4a40212bd435046bf3a",
"time": 1765529135,
"mediantime": 1765527968,
"nonce": 2048487009,
"bits": "1701e63a",
"target": "00000000000000000001e63a0000000000000000000000000000000000000000",
"difficulty": 148195306640204.7,
"chainwork": "0000000000000000000000000000000000000000fd3a7bbcfff8f1fb942a1b17",
"nTx": 318,
"previousblockhash": "00000000000000000001006159daf79ad340a26ee648964c584471194b608b1f"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 631a 9c23 46e8
ef7f 5a49 1.ea 7d2.
5.a3 b9a8 .b.f 6.a5
$ : 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
927548 sf: ...1 1.ea 7d2. 5.a3 M
$ : 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 .
927548 sk: 6.a5 64
$ : 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 .
927548 ak: e38d 64
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 33817,
"bytes": 33084149,
"usage": 175014864,
"total_fee": 0.03753397,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
113
## Current epoch estimation is +0.4%
## 188 of 2016, i.e. 9%, 1828 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.064863053471735e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 927548,
"bestblock": "00000000000000000001631a9c2346e8ef7f5a4910ea7d2050a3b9a80b0f60a5",
"txouts": 164765896,
"bogosize": 12914007271,
"muhash": "7a398b8eb3deae20a95e9e3c261abe86ff221e80d3a9997fed149ed05b0b8749",
"total_amount": 19960860.53562424,
"total_unspendable_amount": 230.08937576,
"block_info": {
"prevout_spent": 268.20533297,
"coinbase": 3.12792836,
"new_outputs_ex_coinbase": 268.20240461,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 927548
{
"avgfee": 923,
"avgfeerate": 0,
"avgtxsize": 3270,
"blockhash": "00000000000000000001631a9c2346e8ef7f5a4910ea7d2050a3b9a80b0f60a5",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 927548,
"ins": 5609,
"maxfee": 25795,
"maxfeerate": 108,
"maxtxsize": 72382,
"medianfee": 143,
"mediantime": 1765527968,
"mediantxsize": 323,
"minfee": 23,
"minfeerate": 0,
"mintxsize": 150,
"outs": 815,
"subsidy": 312500000,
"swtotal_size": 97036,
"swtotal_weight": 233173,
"swtxs": 296,
"time": 1765529135,
"total_out": 26820240461,
"total_size": 1036655,
"total_weight": 3991649,
"totalfee": 292836,
"txs": 318,
"utxo_increase": -4794,
"utxo_size_inc": -359674,
"utxo_increase_actual": -4957,
"utxo_size_inc_actual": -371245
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 444508807,
"totalbytessent": 851024092,
"timemillis": 1765529158933,
"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": 63661,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63661
}
}
$ halving.sh 927548
=====================================
Bitcoin Block Halving prediction
=====================================
bc=927548
gbt=1231006505
bbt=1765529135
This is average time to mine a block
(1765529135-1231006505)/927548
bts=576.2742776931461302853002
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 8 02:24:32 UTC 2028
-------------------------------------
Next palindrome will be 927729
predicted to happen at this time:
Sat Dec 13 13:44:00 UTC 2025
-------------------------------------
Current mining epoch number is 460.
The next fortnight happens in block
929376 and probably around this time:
Wed Dec 24 13:22:44 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
16 "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
20bb25615571aaf4
2e44958698ec5a32b542252776043d9cb01bf306902a76296c010a9911a3d450
b8b9d06a2b06fe75
137de61158f672987fa8e193dad47158c6810a5a97e80e3d3c87901cf464b897
596eb7bd0e665bec
c5cd278a6a2d0b9ed830b9e7aa04385b5e8d5a667bb8b044869e790a7b85026c
a760870541ffcb40
ad04558363b462b23b0977875afcd11299cbd89c68009689c907f19b19c33365
e0baa2982d93b549
19228d2b5fccd4df6a958ce2efa5734b9a07492ff34ccb8cad3a291318d6a2ee
ede709169f54ba41
c32e266b4cb185ef2beb97699463be825a057eb990d82ab46260b39414d1001b
fc19a033a5eacaac
6f52840d1ae4e0b1261be5af541780b8871188bde4bd1222af339758336fafba
952c29ffb60124fb
b1782830c5bae0295f3438e47a6a1b0a80b0921015dec0e8281b196871c10872
93f43076b3bb3924
69981d77a7d6f7511f8b0f917ac94b15955f133d936a67eb69b40da96931627e
e7bb3d482e5189fd
e661d556184d55dd099b53c221855155b5ad5f273199054a7592f089fd28bc52
5edd4df6e5dd001e
21c1b7bec0fd482ed789edba775edc2c66bf7a436e240f6ba1561cf1b54bf0b5
faf836064b742b54
4ba9079a286cf4e87f119d27f0f3695e2f57e6d2e25aad3c126b7e888f7b16f0
c33d3e9f819834fd
16621ddcae7952af84dc1e2194fb06456e07b65e72c63772089b83f2d378532d
598c74bbbf338c5a
ebb63b2c5517448a74a2b2c278b4c671704b7e8090b9d1c98658c8775da8a07f
06503b6a3ecdf977
4f42c93a0fbb83f655c9ec76bd83b35ba13cbfcf313e730d55d644395696e3e4
b16141576d947a7b
be5fc97d53430531cb2bb67e9ede1a6a779750aea56cd865ca24a1dc6ae8a7fd
$ niceblack.sh $BH $BC
___ ____ _____
/ _ \___ \___ |
| (_) |__) | / /
\__, / __/ / /
/_/_____/_/
____ _ _ ___
| ___|| || | ( _ )
|___ \| || |_ / _ \
___) |__ _| (_) |
|____/ |_| \___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 631a 9c23 46e8 1f |
| 2. ef7f 5a49 1.ea 7d2. 2f |
| 3. 5.a3 b9a8 .b.f 6.a5 3f |
'=== ==== ==== ==== ==== ==='
ak: e38d 64