# on receiving block 928156 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-16T18:19:20Z
# as written in the block header
2025-12-16T18:19:11Z
$ uptime # since last reboot
18:19:20 up 125 days, 4:10, 0 users, load average: 1.71, 1.64, 1.53
$ battery.sh
49%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1710952 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.9G .bitcoin/indexes
3.8G .bitcoin/signet
41.8M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.8G .bitcoin/chainstate
125.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 834.4G 76.0G 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
928156
$ BH=$(bitcoin-cli getblockhash 928156); echo $BH
000000000000000000013f3fd007874d295615db2192e3d0db0e61c069723fad
$ bitcoin-cli getblockheader 000000000000000000013f3fd007874d295615db2192e3d0db0e61c069723fad
{
"hash": "000000000000000000013f3fd007874d295615db2192e3d0db0e61c069723fad",
"confirmations": 1,
"height": 928156,
"version": 563281920,
"versionHex": "21930000",
"merkleroot": "761f08befa992a15e81971d3dd14dff4f80e8684ac68af85d0727dfdb79d78ab",
"time": 1765909151,
"mediantime": 1765906283,
"nonce": 315981835,
"bits": "1701e63a",
"target": "00000000000000000001e63a0000000000000000000000000000000000000000",
"difficulty": 148195306640204.7,
"chainwork": "0000000000000000000000000000000000000000fe7a98f58fdf58111b9a7637",
"nTx": 2849,
"previousblockhash": "000000000000000000017e633a021625ad6302e73f04c87c472e77506c834050"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 3f3f d..7 874d
2956 15db 2192 e3d.
db.e 61c. 6972 3fad
$ : 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
928156 sf: ...1 d..7 e3d. db.e 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 .
928156 sk: 3fad 74
$ : 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 .
928156 ak: 7aaa 74
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 46682,
"bytes": 29692853,
"usage": 172973296,
"total_fee": 0.03483322,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
117
## Current epoch estimation is -0.85%
## 796 of 2016, i.e. 39%, 1220 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.051491663831395e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 928156,
"bestblock": "000000000000000000013f3fd007874d295615db2192e3d0db0e61c069723fad",
"txouts": 164624536,
"bogosize": 12903553759,
"muhash": "06b51482145dd1084432a48d5d76e0a251080bd4e675b7e235850521899a7fb9",
"total_amount": 19962760.53550450,
"total_unspendable_amount": 230.08949550,
"block_info": {
"prevout_spent": 5237.15381757,
"coinbase": 3.13471735,
"new_outputs_ex_coinbase": 5237.14410022,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 928156
{
"avgfee": 341,
"avgfeerate": 0,
"avgtxsize": 806,
"blockhash": "000000000000000000013f3fd007874d295615db2192e3d0db0e61c069723fad",
"feerate_percentiles": [
0,
0,
0,
1,
3
],
"height": 928156,
"ins": 7353,
"maxfee": 30384,
"maxfeerate": 70,
"maxtxsize": 372728,
"medianfee": 22,
"mediantime": 1765906283,
"mediantxsize": 222,
"minfee": 19,
"minfeerate": 0,
"mintxsize": 150,
"outs": 6446,
"subsidy": 312500000,
"swtotal_size": 2253042,
"swtotal_weight": 3818832,
"swtxs": 2717,
"time": 1765909151,
"total_out": 523714410022,
"total_size": 2296289,
"total_weight": 3991820,
"totalfee": 971735,
"txs": 2849,
"utxo_increase": -907,
"utxo_size_inc": -63658,
"utxo_increase_actual": -2460,
"utxo_size_inc_actual": -175926
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2048779251,
"totalbytessent": 4356022635,
"timemillis": 1765909161126,
"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 25 2 27
out 14 0 14 2 4
total 39 2 41
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 63934,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63934
}
}
$ halving.sh 928156
=====================================
Bitcoin Block Halving prediction
=====================================
bc=928156
gbt=1231006505
bbt=1765909151
This is average time to mine a block
(1765909151-1231006505)/928156
bts=576.3062132807272907493021
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 8 11:43:25 UTC 2028
-------------------------------------
Next palindrome will be 928829
predicted to happen at this time:
Sun Dec 21 06:03:25 UTC 2025
-------------------------------------
Current mining epoch number is 460.
The next fortnight happens in block
929376 and probably around this time:
Wed Dec 24 21:37:24 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
17 "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
9368a2868c6ca52d
d8697c481b6339734411359c40f32a07e9b589d78ee0ace63a3c1ea3b5f75df2
ce11c19bf8bf5570
88bd3b684d4ce4099c2c9e78365007b5e1e13b37b69580136433c2cc1032188b
b15e4d890262ee80
e9a41b96e5c4e09fef52c4a49db89376e7efd034bd4a2e625adc2c02885dd5bd
b33d9979c3ac519f
fe468c9082d1f2d2a5698000839f0612acc57604b1e68db987f11cb485d8439c
5edd4df6e5dd001e
5a05c7024ccfda103a390affb65c7220b8dd058d47b2804928a698e91cc73f41
7b9a1ca6d304d08a
7f1a74c40a932e0442fb8f3545dc5a8b09c3c7bb5ba078a4987b13dfc5d3b4d9
2f483f8248b737c5
c52be77074176d57f290e6033fa8b7e357759b7d885b957de26dd45b2b9b4df7
9dcb5e85e7380fc8
a600f255f3c73c6a94dfeb4625c9792b0bf2962b5e5edb4c49fbc61a5872c8c8
3292d7567fdd2c15
dfbb9984b5bf4277aeae08d6a62b4fa2065738ffdb1e496788087a337275ec66
952c29ffb60124fb
31733c8f2ec035a6406a5ca456e0407131e95142eda2e4a745f09a9976626280
3da7a61d822d21c9
975d734b659852d2b12e64676322f019630b9ef7c6e225798bbb6f8e2e74b1d0
9eca5a639da9e95b
415d02a952ef2ce353ed5b06eac9489a2321910f84aff4c59f6289a82a1033d8
6ce14080159d3a4d
525145416407e45909f8024761240e6161774f4a2a2c49fd04de7b8f75c4a799
c242201f1544d476
9be0447a36e93f137c6fd8f75d3bcac95bc14a23d5080f25549f0d8e31a97e11
842b963a3d2d3874
c0fe0d4ff93a881503999420aca49db8028f7a2e070090a15a89ad3497454203
7c0ec5c90bf6d425
8b8d9e249245226e5f8db83eb0aec0b484e34d75a41d69c012607751419495f3
$ niceblack.sh $BH $BC
_ _ _
| |__| |___ __| |__
| '_ \ / _ \/ _| / /
|_.__/_\___/\__|_\_\
___ ___ ___ _ ___ __
/ _ \_ | _ ) | __| / /
\_, // // _ \ |__ \/ _ \
/_//___\___/_|___/\___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 3f3f d..7 874d 1f |
| 2. 2956 15db 2192 e3d. 2f |
| 3. db.e 61c. 6972 3fad 3f |
'=== ==== ==== ==== ==== ==='
ak: 7aaa 74
...............| ..||||||..||||||