# on receiving block 943974 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-06T23:20:32Z
# as written in the block header
2026-04-06T23:21:08Z
$ uptime # since last reboot
23:20:32 up 18 days, 14:13, 0 users, load average: 1.04, 1.01, 1.17
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2041964 kB
$ du -h -d1 .bitcoin/
12.1G .bitcoin/indexes
4.4G .bitcoin/signet
2.7M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
124.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.2G 477.3G 48% /
$ bitcoind -version
Bitcoin Core daemon version v31.0rc2 bitcoind
Copyright (C) 2009-2026 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
943974
$ BH=$(bitcoin-cli getblockhash 943974); echo $BH
000000000000000000018497d598e9980a712577fd25dd6ac458b45bfa487845
$ bitcoin-cli getblockheader 000000000000000000018497d598e9980a712577fd25dd6ac458b45bfa487845
{
"hash": "000000000000000000018497d598e9980a712577fd25dd6ac458b45bfa487845",
"confirmations": 1,
"height": 943974,
"version": 606724096,
"versionHex": "2429e000",
"merkleroot": "a6ac4a2fa7a38e872a20e30df5f31fc8679400986bd448bceae8a80f845efa94",
"time": 1775517668,
"mediantime": 1775515170,
"nonce": 3038848324,
"bits": "17020684",
"target": "0000000000000000000206840000000000000000000000000000000000000000",
"difficulty": 138966872071213.2,
"chainwork": "00000000000000000000000000000000000000011d7f5a40550d03d8a5553e58",
"nTx": 4620,
"previousblockhash": "00000000000000000000ff8c418277e594e0e50acbab7c30e378a9f8bbe831a0"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 8497 d598 e998
.a71 2577 fd25 dd6a
c458 b45b fa48 7845
$ : 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
943974 sf: ...1 .a71 7845
$ : 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 .
943974 sk: 7845 a4
$ : 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 .
943974 ak: 45d1 a4
$ : Following is the jointkode
943974 jk: 7845 45d1 a4
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 10288,
"bytes": 10243771,
"usage": 52568544,
"total_fee": 0.01186664,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
115
## Current epoch estimation is -1.04%
## 486 of 2016, i.e. 24%, 1530 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.838254570636952e+20
$ bitcoin-cli getnetworkhashps 2016 943487
9.942372658458654e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 943974,
"bestblock": "000000000000000000018497d598e9980a712577fd25dd6ac458b45bfa487845",
"txouts": 165064373,
"bogosize": 12933474720,
"muhash": "7ca1d457c66fc7161a20f74147cdc0987b7730152987c951f3c5119f878f0e0c",
"total_amount": 20012191.78020890,
"total_unspendable_amount": 230.09479110,
"block_info": {
"prevout_spent": 5686.29161988,
"coinbase": 3.13313861,
"new_outputs_ex_coinbase": 5686.28348127,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 943974
{
"avgfee": 176,
"avgfeerate": 0,
"avgtxsize": 442,
"blockhash": "000000000000000000018497d598e9980a712577fd25dd6ac458b45bfa487845",
"feerate_percentiles": [
0,
0,
0,
1,
2
],
"height": 943974,
"ins": 5838,
"maxfee": 35100,
"maxfeerate": 140,
"maxtxsize": 263916,
"medianfee": 18,
"mediantime": 1775515170,
"mediantxsize": 222,
"minfee": 14,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9901,
"subsidy": 312500000,
"swtotal_size": 1975330,
"swtotal_weight": 3718771,
"swtxs": 4544,
"time": 1775517668,
"total_out": 568628348127,
"total_size": 2044026,
"total_weight": 3993555,
"totalfee": 813861,
"txs": 4620,
"utxo_increase": 4063,
"utxo_size_inc": 291228,
"utxo_increase_actual": 419,
"utxo_size_inc_actual": 31170
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 4071850672,
"totalbytessent": 8825025418,
"timemillis": 1775517633444,
"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 v31.0rc2 - server 70016/Satoshi:31.0.0/
ipv4 npr total block
in 20 1 21
out 10 0 10 2
total 30 1 31
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62031,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62031
}
}
$ halving.sh 943974
=====================================
Bitcoin Block Halving prediction
=====================================
bc=943974
gbt=1231006505
bbt=1775517668
This is average time to mine a block
(1775517668-1231006505)/943974
bts=576.8279488333907147964723
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 19:53:48 UTC 2028
-------------------------------------
Next palindrome will be 944449
predicted to happen at this time:
Fri Apr 10 03:27:41 UTC 2026
-------------------------------------
Current mining epoch number is 468.
The next fortnight happens in block
945504 and probably around this time:
Fri Apr 17 04:30:14 UTC 2026
### 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
aa553ee8cea85fe0
dc95a76ee26addfed640e64fc8fd12c9d792238dd7a6d94bedf4cfd7796354bb
28fedca04b7887ac
b0cfc453555c6174441b04b48773edd9e454227cd9ce8e3e2f4a4513fbaebd75
1957d89a90d1886f
e60144424987c961b9e8d1e05ec7026400946a8bee433ea851811401ce2f8eab
cfe855ce8ca537e1
46dc23905ab0e89d5ea5fe14f882eb96cb68c1f0e28f96d6f267be68729cb9a0
793aa6b16f184fe2
288f399824371fc9616fd44a0026b47aa68c3b423c5d1569d4d8c16b69bec790
4a89496d1d8583ca
9ddf15d0c90ea68d0d93aa174d7f0ee52d3887e8d01b31af43ba9b12e000d125
05fd879efdf20907
820a7cbb146d008a921c4b4a4a1e59ff2626c4180aec04597917b3d41d2dfb3c
6dd1586401433524
4247dc12074acbdd4ed644683d8c5ca04478fd833797cb578dd2bde9883e5c15
70e8634654f4590b
bec5cac797dae6987d69a0f1e8f7427981324333d79c9ee70ec66aeada3333e7
200a1ee50612a94b
0b720956bcfe72dbdd16bd59c935a104c09e4cfd837c0e5f1377939048f067e9
0854b6cc77e685fb
3eaef9e024dd539da5d3d2cd04b7216c036780b9514a4f95d0e61877fd974d6f
8e20d00239ea5c02
c49d97bc5301ae4eca750c767f8c3d640c7a38e4bdbba8a1c34423e78ee3c3c2
87c9d75a40cbeab0
720867a6c14c4d60cab7d7c5f323590a4c03a1311f4976680386a48dfa089123
d9c374770f75b307
99ebea71da54f434656615ef8595847decfa0acddaf96eb767355cd83aa28d22
488b39130806983a
7fcbcda894da4886a3ae9ec6615faed3ebbbf2d1fa906922ee0957787ac9d309
3f1c4f9145d5366d
d673c7e421c4c4ce8b157c0d27c573b52e7dd4488a95b5c8de3e3fdcd26cf01c
$ niceblack.sh $BH $BC
##### # #####
# # # # # #
# # # # #
###### # # #####
# ####### #
# # # # #
##### # #####
##### ####### #
# # # # # #
# # # # #
###### # # #
# # #######
# # # #
##### # #
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 8497 d598 e998 1f |
| 2. .a71 2577 fd25 dd6a 2f |
| 3. c458 b45b fa48 7845 3f |
'=== ==== ==== ==== ==== ==='
jk: 7845 45d1 a4