# on receiving block 937790 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-02-22T07:44:57Z
# as written in the block header
2026-02-22T07:44:51Z
$ uptime # since last reboot
07:44:57 up 5 days, 13:15, 0 users, load average: 0.75, 1.24, 1.45
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2306252 kB
$ du -h -d1 .bitcoin/
12.0G .bitcoin/indexes
4.2G .bitcoin/signet
2.6M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.5G .bitcoin/chainstate
124.6G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.1G 477.3G 48% /
$ bitcoind -version
Bitcoin Core daemon version v30.2.0 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
937790
$ BH=$(bitcoin-cli getblockhash 937790); echo $BH
000000000000000000011b6716c65cab028f01c25171ca23ffdb0569ed5657dd
$ bitcoin-cli getblockheader 000000000000000000011b6716c65cab028f01c25171ca23ffdb0569ed5657dd
{
"hash": "000000000000000000011b6716c65cab028f01c25171ca23ffdb0569ed5657dd",
"confirmations": 1,
"height": 937790,
"version": 771751936,
"versionHex": "2e000000",
"merkleroot": "b23342de3f51b12c185213f0becb5c7a62f9474a1701bb23e69c379e1631954b",
"time": 1771746291,
"mediantime": 1771742867,
"nonce": 1129594010,
"bits": "1701f303",
"target": "00000000000000000001f3030000000000000000000000000000000000000000",
"difficulty": 144398401518100.9,
"chainwork": "0000000000000000000000000000000000000001116b9e9a58e768bfef07c39e",
"nTx": 1490,
"previousblockhash": "0000000000000000000087024790b9fc95d5a2f94d04a3f56d07c2b4bb193de5"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 1b67 16c6 5cab
.28f .1c2 5171 ca23
ffdb .569 ed56 57dd
$ : 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
937790 sf: ...1 .28f .1c2 .569 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 .
937790 sk: 57dd 84
$ : 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 .
937790 ak: 892d 84
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 11945,
"bytes": 3099155,
"usage": 22581936,
"total_fee": 0.00368245,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 1,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
118
## Current epoch estimation is -0.34%
## 350 of 2016, i.e. 17%, 1666 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.029314984146923e+21
$ bitcoin-cli getnetworkhashps 2016 937439
1.03283744073678e+21
$ bitcoin-cli getnetworkhashps 2016 935423
9.009048549126172e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 937790,
"bestblock": "000000000000000000011b6716c65cab028f01c25171ca23ffdb0569ed5657dd",
"txouts": 164579417,
"bogosize": 12895746372,
"muhash": "9d302a577aeedcfd627a282c838c6e75c333e29beceab63fc46ab6aee3c5224e",
"total_amount": 19992866.78169598,
"total_unspendable_amount": 230.09330402,
"block_info": {
"prevout_spent": 420.08715934,
"coinbase": 3.12847920,
"new_outputs_ex_coinbase": 420.08368013,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 937790
{
"avgfee": 233,
"avgfeerate": 0,
"avgtxsize": 1346,
"blockhash": "000000000000000000011b6716c65cab028f01c25171ca23ffdb0569ed5657dd",
"feerate_percentiles": [
0,
0,
0,
0,
1
],
"height": 937790,
"ins": 12713,
"maxfee": 30830,
"maxfeerate": 94,
"maxtxsize": 148567,
"medianfee": 25,
"mediantime": 1771742867,
"mediantxsize": 223,
"minfee": 15,
"minfeerate": 0,
"mintxsize": 150,
"outs": 3617,
"subsidy": 312500000,
"swtotal_size": 1996158,
"swtotal_weight": 3956982,
"swtxs": 1454,
"time": 1771746291,
"total_out": 42008368014,
"total_size": 2004832,
"total_weight": 3991678,
"totalfee": 347920,
"txs": 1490,
"utxo_increase": -9096,
"utxo_size_inc": -679342,
"utxo_increase_actual": -10298,
"utxo_size_inc_actual": -758451
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 2375917387,
"totalbytessent": 4261196878,
"timemillis": 1771746297631,
"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 v30.2.0 - server 70016/Satoshi:30.2.0/
ipv4 npr total block libre
in 18 2 20
out 14 0 14 2 4
total 32 2 34
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 63004,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63004
}
}
$ halving.sh 937790
=====================================
Bitcoin Block Halving prediction
=====================================
bc=937790
gbt=1231006505
bbt=1771746291
This is average time to mine a block
(1771746291-1231006505)/937790
bts=576.6101252837785817948775
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Sun Mar 12 04:21:53 UTC 2028
-------------------------------------
Next palindrome will be 938839
predicted to happen at this time:
Sun Mar 1 07:45:55 UTC 2026
-------------------------------------
Current mining epoch number is 465.
The next fortnight happens in block
939456 and probably around this time:
Thu Mar 5 10:35:23 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
18 "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
2cc2e80f93695aca
ba385c8844882d2702cdb00a26e72702146bee662683120fd43b334de6255303
03cffffea1416bf2
be5dd8d36dd8927acd6cb9cbd31f69b0ddcd2e077ed50ec33977c28dcf5eedba
f8296a068f754e4c
5c1845bd354fde462110ba1bef6981b9beffcb4914bf835fda64b91840e6b1c4
dd5d423ffdfce6d9
92b1a5595109f486cb572f4abc1c928790458e82916de9a4234d515b949b712d
5047d5678d7df13f
dac3ef2d593a5525694abff3e33c1cf62df1dc0d9d43c81ccf70558d3be1bba8
88985320f20ecc73
7f7529154a88587d520e6bc076980fe45b5d8b1213f2316a8919fa76648007c1
93f43076b3bb3924
453873ddb1828d8e7204c7324d58001b74ffb1f018a95874ae96fe31b646c477
e7bb3d482e5189fd
2153b16db6db1a7e4779009a2d739cf559fe98fd4ede61981dcae13281f3a3a8
e61e016b0081794e
4b5629a49e4e3ecc9ffeb79d72266d570418c253be1263d8a2e60a06104855d2
b3d9f9c3d0face61
3707672eeed142fc67c66ffa719199421e8522140664d80178276621b19e54d7
38a2937f5e488f1f
1026d34a876b4f5ac8388918208d7be5870ca50225edf96fa686d6bfad07549c
8f35bb2a8edb5934
3718e11d556f393dcf244960f529609dadb0e8301c7496ec448032958cfe05f4
bf77d7a51641e024
ef9464f53ed7f52fdbb48dc1a9decac01aecfc19edbbb7a4a729a151ab12c716
e5c7559171754df8
541ab09f16cac0fee80c679cb5e90ab5c08466761ca6f891cc3b0b5faf8c7e4e
45d75a23e21e1bae
f7fe9231b21cb3df42b3e5aa9084a29ffae7b14f5356698be295e8d7d43ad7ad
b84b0a562bc7fbfd
da523cb55b759e26efbb45799df9098777f6ce66864b671a45f9620ef0c4c56a
d7027bd3c1092706
6ab81aa7efeda33977c1e540ef012a536d739696818f0f8ad9566e0aea63af32
f3546f11973573e9
0b2e56d874ee7fe771ee05ed83ea75fd67ab754498dce6e32afc8400e23da75d
$ niceblack.sh $BH $BC
___ __________ _____ ___ ___
/ _ \___ /___ | |___ / _ \ / _ \
| (_) ||_ \ / / / / (_) | | | |
\__, |__) |/ / / / \__, | |_| |
/_/____//_/ /_/ /_/ \___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 1b67 16c6 5cab 1f |
| 2. .28f .1c2 5171 ca23 2f |
| 3. ffdb .569 ed56 57dd 3f |
'=== ==== ==== ==== ==== ==='
ak: 892d 84