# on receiving block 897479 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-05-20T01:09:06Z
# as written in the block header
2025-05-20T01:08:31Z
$ uptime # since last reboot
01:09:06 up 106 days, 12:48, 0 users, load average: 2.43, 1.42, 1.46
$ battery.sh
124%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1746944 kB
$ du -h -d1 .bitcoin/
11.2G .bitcoin/indexes
2.0G .bitcoin/signet
3.4M .bitcoin/wallets
97.7G .bitcoin/blocks
11.0G .bitcoin/chainstate
121.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 836.6G 73.8G 92% /
$ bitcoind -version
Bitcoin Core daemon version v29.99.0-92b05c17b147
Copyright (C) 2009-2025 The Bitcoin Core developers
Please contribute if you find Bitcoin Core useful. Visit
<https://bitcoincore.org/> for further information about the software.
The source code is available from <https://github.com/bitcoin/bitcoin>.
This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or <https://opensource.org/licenses/MIT>
$ BC=$(bitcoin-cli getblockcount); echo $BC
897479
$ BH=$(bitcoin-cli getblockhash 897479); echo $BH
000000000000000000002f82293273d94c18685e501b035a8cb752b948e9d8d4
$ bitcoin-cli getblockheader 000000000000000000002f82293273d94c18685e501b035a8cb752b948e9d8d4
{
"hash": "000000000000000000002f82293273d94c18685e501b035a8cb752b948e9d8d4",
"confirmations": 1,
"height": 897479,
"version": 542654464,
"versionHex": "20584000",
"merkleroot": "334c67b098f17cfd7261db292fda4931b3a2b73bfaa7be5bb03a50c4da967811",
"time": 1747703311,
"mediantime": 1747698112,
"nonce": 2063413403,
"bits": "17025049",
"target": "0000000000000000000250490000000000000000000000000000000000000000",
"difficulty": 121658450774825,
"chainwork": "0000000000000000000000000000000000000000c469eb59287eb8c773e93098",
"nTx": 4160,
"previousblockhash": "00000000000000000001fdb27938b7ba4a4c3acaad1ea7693406180dcbc50ca3"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 2f82 2932 73d9
4c18 685e 5.1b .35a
8cb7 52b9 48e9 d8d4
$ : 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
897479 sf: 5.1b .35a d8d4
$ : 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 .
897479 sk: d8d4 95
$ : 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 .
897479 ak: 4c5d 95
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 36813,
"bytes": 19550457,
"usage": 85228160,
"total_fee": 0.35883037,
"maxmempool": 300000000,
"mempoolminfee": 0.00001000,
"minrelaytxfee": 0.00001000,
"incrementalrelayfee": 0.00001000,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
1834
## Current epoch estimation is -0.84%
## 359 of 2016, i.e. 17%, 1657 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.631227222737111e+20
$ bitcoin-cli getnetworkhashps 2016 897119
8.704557915859883e+20
$ bitcoin-cli getnetworkhashps 2016 895103
8.524479268489561e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 897479,
"bestblock": "000000000000000000002f82293273d94c18685e501b035a8cb752b948e9d8d4",
"txouts": 171421799,
"bogosize": 13419816418,
"muhash": "1d777b23ace20c0f9b12b72bc9d18da70d97e2150d21bc9f918ad6d9d141583a",
"total_amount": 19866903.97333178,
"total_unspendable_amount": 221.02666822,
"block_info": {
"prevout_spent": 1754.95331477,
"coinbase": 3.15789130,
"new_outputs_ex_coinbase": 1754.92042347,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 897479
{
"avgfee": 790,
"avgfeerate": 3,
"avgtxsize": 357,
"blockhash": "000000000000000000002f82293273d94c18685e501b035a8cb752b948e9d8d4",
"feerate_percentiles": [
2,
2,
3,
3,
4
],
"height": 897479,
"ins": 7662,
"maxfee": 61574,
"maxfeerate": 47,
"maxtxsize": 37173,
"medianfee": 385,
"mediantime": 1747698112,
"mediantxsize": 228,
"minfee": 121,
"minfeerate": 1,
"mintxsize": 150,
"outs": 9038,
"subsidy": 312500000,
"swtotal_size": 1272874,
"swtotal_weight": 3131455,
"swtxs": 4011,
"time": 1747703311,
"total_out": 175492042347,
"total_size": 1487998,
"total_weight": 3991951,
"totalfee": 3289130,
"txs": 4160,
"utxo_increase": 1376,
"utxo_size_inc": 121050,
"utxo_increase_actual": -1016,
"utxo_size_inc_actual": -67296
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 1636529592,
"totalbytessent": 3941180969,
"timemillis": 1747703347696,
"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 v29.99.0-92b05c17b147 - server 70016/Satoshi:29.99.0/
ipv4 npr total block
in 30 2 32
out 11 0 11 2
total 41 2 43
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62730,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62730
}
}
$ halving.sh 897479
=====================================
Bitcoin Block Halving prediction
=====================================
bc=897479
gbt=1231006505
bbt=1747703311
This is average time to mine a block
(1747703311-1231006505)/897479
bts=575.7195770379284218032713
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 1 08:37:16 UTC 2028
-------------------------------------
Next palindrome will be 897798
predicted to happen at this time:
Thu May 22 04:09:25 UTC 2025
-------------------------------------
Current mining epoch number is 445.
The next fortnight happens in block
899136 and probably around this time:
Sat May 31 02:07:58 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
10 "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
051ed1309233d6d4
b1ebd44295d36017d844074d02ff0db216ee3dbfca73d8ce4bddb9f3f10d0e99
f86edfd504e1b141
9ad4cd98fdc380a1b7770a7e353e85ae20c4ffccea82ef13342c80ff71f4d269
0f7cf65020fa22cb
01b2da53b6c9d077cdb65b30752a5968957e4bd0362bacf07e18f3b16fc96fd4
e8238212a61b49ad
f01741f2ed5d59f125bcdd303325bbed07ccf6ad0cdd59c51d2682e1bb96f91c
c018dcad0d639387
0a83341ef51a01c43aeb3da4eec4096d148d4c4a306ceae9998b19f6d7b60f2a
01120b4be340c418
898f6a5a7d54561168720624e3b786dd1d6262951f263b49eb6e9ea2d1482b52
dfed512540bb4970
5efdbbd6b884422a95d1ca8c25daa85d1c95f07c6899d996f9d8380221a32654
24c1784062ff2385
b9de0bac903cd45282e64fb1dd52f7088cf06e46f4f20a3cee2c0413073ce4f7
7b264d6d67dafad3
bd2661e3b91488e8f10a5834c567608f0b6ef9f3c36599e477dd9bd93ee9653b
9b7f63042061fdee
b1677319b5c3dea6c417237cd92baeb0ce8e5856eb5a09fe489b4f714b5ee344
$ niceblack.sh $BH $BC
___ ___ _____ _ _ _____ ___
( _ )/ _ \___ | | || |___ / _ \
/ _ \ (_) | / / | || |_ / / (_) |
| (_) \__, |/ / |__ _/ / \__, |
\___/ /_//_/ |_|/_/ /_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... 2f82 2932 73d9 1f |
| 2. 4c18 685e 5.1b .35a 2f |
| 3. 8cb7 52b9 48e9 d8d4 3f |
'=== ==== ==== ==== ==== ==='
ak: 4c5d 95