# on receiving block 893117 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-04-19T14:44:39Z
# as written in the block header
2025-04-19T14:44:24Z
$ uptime # since last reboot
14:44:39 up 76 days, 2:24, 0 users, load average: 6.23, 3.50, 2.73
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2059656 kB
$ du -h -d1 .bitcoin/
11.1G .bitcoin/indexes
1.7G .bitcoin/signet
3.5M .bitcoin/wallets
97.7G .bitcoin/blocks
11.3G .bitcoin/chainstate
121.7G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 830.6G 79.8G 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
893117
$ BH=$(bitcoin-cli getblockhash 893117); echo $BH
00000000000000000002115e16262b609f88d36e528859a8d85bd1448c5d10b5
$ bitcoin-cli getblockheader 00000000000000000002115e16262b609f88d36e528859a8d85bd1448c5d10b5
{
"hash": "00000000000000000002115e16262b609f88d36e528859a8d85bd1448c5d10b5",
"confirmations": 1,
"height": 893117,
"version": 644464640,
"versionHex": "2669c000",
"merkleroot": "0803370cb470a37e01e7dbbfd22538e9b30c18dd84b1b5e5e76dd5bc9f4dec2b",
"time": 1745073864,
"mediantime": 1745073113,
"nonce": 409131837,
"bits": "170248b6",
"target": "0000000000000000000248b60000000000000000000000000000000000000000",
"difficulty": 123234387977050.9,
"chainwork": "0000000000000000000000000000000000000000bd13a55800a72bd63b70675c",
"nTx": 497,
"previousblockhash": "00000000000000000001e36c52a835bff83dd3debabe2d58780f7fa26fa1afb6"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...2 115e 1626 2b6.
9f88 d36e 5288 59a8
d85b d144 8c5d 1.b5
$ : 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
893117 sf: ...2 2b6. 1.b5
$ : 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 .
893117 sk: 1.b5 94
$ : 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 .
893117 ak: fe2b 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 23080,
"bytes": 12534272,
"usage": 66781776,
"total_fee": 0.18101004,
"maxmempool": 300000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
1444
## Current epoch estimation is +0.26%
## 29 of 2016, i.e. 1%, 1987 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.84476520664071e+20
$ bitcoin-cli getnetworkhashps 2016 893087
8.821342073060424e+20
$ bitcoin-cli getnetworkhashps 2016 891071
8.697135835318949e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 893117,
"bestblock": "00000000000000000002115e16262b609f88d36e528859a8d85bd1448c5d10b5",
"txouts": 174103206,
"bogosize": 13620291072,
"muhash": "54e4a896b407c82e464fa37f13f3614863dcb1fc05f0dba7d67684e08eab7408",
"total_amount": 19853272.76219989,
"total_unspendable_amount": 220.98780011,
"block_info": {
"prevout_spent": 32.35655236,
"coinbase": 3.14787124,
"new_outputs_ex_coinbase": 32.33368112,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 893117
{
"avgfee": 4611,
"avgfeerate": 2,
"avgtxsize": 4227,
"blockhash": "00000000000000000002115e16262b609f88d36e528859a8d85bd1448c5d10b5",
"feerate_percentiles": [
2,
2,
2,
2,
2
],
"height": 893117,
"ins": 14056,
"maxfee": 106660,
"maxfeerate": 100,
"maxtxsize": 94451,
"medianfee": 450,
"mediantime": 1745073113,
"mediantxsize": 230,
"minfee": 293,
"minfeerate": 2,
"mintxsize": 180,
"outs": 1207,
"subsidy": 312500000,
"swtotal_size": 2090943,
"swtotal_weight": 3969225,
"swtxs": 486,
"time": 1745073864,
"total_out": 3233368112,
"total_size": 2096613,
"total_weight": 3991905,
"totalfee": 2287124,
"txs": 497,
"utxo_increase": -12849,
"utxo_size_inc": -933846,
"utxo_increase_actual": -13175,
"utxo_size_inc_actual": -955911
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 740661799,
"totalbytessent": 1539957352,
"timemillis": 1745073880858,
"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 893117
=====================================
Bitcoin Block Halving prediction
=====================================
bc=893117
gbt=1231006505
bbt=1745073864
This is average time to mine a block
(1745073864-1231006505)/893117
bts=575.5872785007132316222492
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Mon Feb 28 18:02:03 UTC 2028
-------------------------------------
Next palindrome will be 893398
predicted to happen at this time:
Mon Apr 21 11:40:04 UTC 2025
-------------------------------------
Current mining epoch number is 443.
The next fortnight happens in block
895104 and probably around this time:
Fri May 2 20:25:55 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. ...2 115e 1626 2b6. 1f |
| 2. 9f88 d36e 5288 59a8 2f |
| 3. d85b d144 8c5d 1.b5 3f |
'=== ==== ==== ==== ==== ==='
ak: fe2b 94