# on receiving block 893109 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-04-19T14:03:11Z
# as written in the block header
2025-04-19T14:02:59Z
$ uptime # since last reboot
14:03:11 up 76 days, 1:42, 0 users, load average: 2.57, 3.36, 3.05
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2018084 kB
$ du -h -d1 .bitcoin/
11.1G .bitcoin/indexes
1.7G .bitcoin/signet
3.5M .bitcoin/wallets
97.7G .bitcoin/blocks
11.1G .bitcoin/chainstate
121.6G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 830.4G 80.0G 91% /
$ bitcoind -version
Bitcoin Core daemon version v29.0
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
893109
$ BH=$(bitcoin-cli getblockhash 893109); echo $BH
000000000000000000006783de2875cf44bec4c75c584163e501a8f5aab21296
$ bitcoin-cli getblockheader 000000000000000000006783de2875cf44bec4c75c584163e501a8f5aab21296
{
"hash": "000000000000000000006783de2875cf44bec4c75c584163e501a8f5aab21296",
"confirmations": 1,
"height": 893109,
"version": 656392192,
"versionHex": "271fc000",
"merkleroot": "7e95bd7d4a6613386312ce227529803abe79f05a7a18c3bf046a8548f46bc1f0",
"time": 1745071379,
"mediantime": 1745068938,
"nonce": 2587669274,
"bits": "170248b6",
"target": "0000000000000000000248b60000000000000000000000000000000000000000",
"difficulty": 123234387977050.9,
"chainwork": "0000000000000000000000000000000000000000bd1024ae90a2a0fa7e2a834c",
"nTx": 4424,
"previousblockhash": "000000000000000000020a96264033aad71a74dbee99bf1c2a09ed94d82329ff"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 6783 de28 75cf
44be c4c7 5c58 4163
e5.1 a8f5 aab2 1296
$ : 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
893109 sf: e5.1 1296
$ : 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 .
893109 sk: 1296 a5
$ : 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 .
893109 ak: a4f6 a5
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 29650,
"bytes": 15213696,
"usage": 83074240,
"total_fee": 0.24426120,
"maxmempool": 300000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
1604
## Current epoch estimation is -0.02%
## 21 of 2016, i.e. 1%, 1995 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.819796380156123e+20
$ bitcoin-cli getnetworkhashps 2016 893087
8.821342073060424e+20
$ bitcoin-cli getnetworkhashps 2016 891071
8.697135835318949e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 893109,
"bestblock": "000000000000000000006783de2875cf44bec4c75c584163e501a8f5aab21296",
"txouts": 174098045,
"bogosize": 13619753444,
"muhash": "67a2153da7b910b9178ef93faad30166041b05598e22c1126f7f2a3d08cfad0d",
"total_amount": 19853247.76219989,
"total_unspendable_amount": 220.98780011,
"block_info": {
"prevout_spent": 1533.34676188,
"coinbase": 3.16436084,
"new_outputs_ex_coinbase": 1533.30740104,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 893109
{
"avgfee": 889,
"avgfeerate": 3,
"avgtxsize": 367,
"blockhash": "000000000000000000006783de2875cf44bec4c75c584163e501a8f5aab21296",
"feerate_percentiles": [
3,
3,
3,
4,
4
],
"height": 893109,
"ins": 7598,
"maxfee": 256054,
"maxfeerate": 201,
"maxtxsize": 141114,
"medianfee": 564,
"mediantime": 1745068938,
"mediantxsize": 229,
"minfee": 235,
"minfeerate": 1,
"mintxsize": 150,
"outs": 12217,
"subsidy": 312500000,
"swtotal_size": 1582537,
"swtotal_weight": 3815173,
"swtxs": 4308,
"time": 1745071379,
"total_out": 153330740104,
"total_size": 1626697,
"total_weight": 3991813,
"totalfee": 3936084,
"txs": 4424,
"utxo_increase": 4619,
"utxo_size_inc": 339014,
"utxo_increase_actual": 2230,
"utxo_size_inc_actual": 178048
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 728137804,
"totalbytessent": 1525531253,
"timemillis": 1745071392123,
"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 v29.0 - server 70016/Satoshi:29.0.0/
ipv4 npr total block
in 25 2 27
out 10 0 10 2
total 35 2 37
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 64603,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 64603
}
}
$ halving.sh 893109
=====================================
Bitcoin Block Halving prediction
=====================================
bc=893109
gbt=1231006505
bbt=1745071379
This is average time to mine a block
(1745071379-1231006505)/893109
bts=575.5896518905845864451187
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Mon Feb 28 18:43:35 UTC 2028
-------------------------------------
Next palindrome will be 893398
predicted to happen at this time:
Mon Apr 21 12:15:24 UTC 2025
-------------------------------------
Current mining epoch number is 443.
The next fortnight happens in block
895104 and probably around this time:
Fri May 2 21:01:20 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
12 "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
66491e0b28a25fc5
f60ea75eb6ba539da3d94affbace73e98c61d71210271fc5912e12c43c462dee
d831d50cf7eface8
0cc43275d818a31f7c6611c18e2c1d57e38534f26d83547b937a6575064e49b8
d44e98aa0062059d
2e53e5eca1f22c0d38e503e4428e6217cbdc7506ec76d17e98029048c6927fa7
a7afb78d112a02c8
84f7c46d25086df65b5598606af35bb88fa7cfa8686b8fe3233f11188cda8ca7
e65936d5efa6bcc0
b4302ee8874aae0223d75c25f2535c3daf234941644816b2acf625d1b49a3af3
8abc33700b12073b
c9a3ae44ca21836b74ac7e64cb66437e7a2bc859b2a3e6f7382445844a0d2d89
fc0cbb373960ab98
dadaabf5e7249c57f24ce5f0796cd51e02d1ccd7f55f74103f1546b920facde3
8ac29109c2b2650a
e3bace9c1bff2be78dc421ca0dab6c88c2425b19c7f20f782d4a9bc6522985ab
6e79733e50930a1c
b5ac750a8f8da9f0a183ebee986a1017f8bff49136694d7d606538aff309fc17
8757cc8d734dc743
edfa439db46412b20568281ab7e1db6b1d1fec9c4dcabb717b6edbacfe0f97d9
34b4c517b8379c7e
d4bc362f585ef0825f323338306cd47f91908fedb6212974a0183f2e66cf086d
c724e36f72e5ce30
6dd0a007b23f1d326c9fc1b14c4a1029cc506d7cebe89d8158eda5d9f7a977dc
$ niceblack.sh $BH $BC
_ _ _
| | | | | |
| | | | __ __ | |
|/ \_|/ / \_/ |/_)
\_/ |__/\__/ \___/| \_/
__ __ ___ , __ __
/ \/ |/ \/| / \ / |
\__/\_/| __/ || |\_/|
/ \ | \ || | |
\__/ |\___/ | \__/ |
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 6783 de28 75cf 1f |
| 2. 44be c4c7 5c58 4163 2f |
| 3. e5.1 a8f5 aab2 1296 3f |
'=== ==== ==== ==== ==== ==='
ak: a4f6 a5