# on receiving block 939623 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-03-06T20:17:41Z
# as written in the block header
2026-03-06T20:17:41Z
$ uptime # since last reboot
20:17:41 up 18 days, 1:48, 0 users, load average: 0.98, 1.55, 1.74
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2083880 kB
$ du -h -d1 .bitcoin/
12.1G .bitcoin/indexes
4.2G .bitcoin/signet
2.6M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
124.8G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.2G 477.2G 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
939623
$ BH=$(bitcoin-cli getblockhash 939623); echo $BH
00000000000000000001279fc25f1e100c2cd239fdf4aa343394801f839af6ec
$ bitcoin-cli getblockheader 00000000000000000001279fc25f1e100c2cd239fdf4aa343394801f839af6ec
{
"hash": "00000000000000000001279fc25f1e100c2cd239fdf4aa343394801f839af6ec",
"confirmations": 1,
"height": 939623,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "9383118b9e53c3fdc16551b5dc1d969a711e277d65892e70a7666d7ab59e5d6c",
"time": 1772828261,
"mediantime": 1772821846,
"nonce": 1602330754,
"bits": "1701f0cc",
"target": "00000000000000000001f0cc0000000000000000000000000000000000000000",
"difficulty": 145042165424853.3,
"chainwork": "000000000000000000000000000000000000000115185bc38c50ba54c78b63e8",
"nTx": 4104,
"previousblockhash": "0000000000000000000098b3c33bbea252cfc3c1ea5b4a620df6eca15ee4d437"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 279f c25f 1e1.
.c2c d239 fdf4 aa34
3394 8.1f 839a f6ec
$ : 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
939623 sf: ...1 1e1. .c2c 8.1f 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 .
939623 sk: f6ec 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 .
939623 ak: b4f9 84
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 34362,
"bytes": 26856842,
"usage": 151147104,
"total_fee": 0.07249554,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
269
## Current epoch estimation is +1.03%
## 167 of 2016, i.e. 8%, 1849 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.048676391439325e+21
$ bitcoin-cli getnetworkhashps 2016 939455
1.037983005536264e+21
$ bitcoin-cli getnetworkhashps 2016 937439
1.03283744073678e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 939623,
"bestblock": "00000000000000000001279fc25f1e100c2cd239fdf4aa343394801f839af6ec",
"txouts": 164834996,
"bogosize": 12914473138,
"muhash": "aa50a9118af665a56dece358d7c1804ed8c3543d620a335a4ce5fe351277e342",
"total_amount": 19998594.90580596,
"total_unspendable_amount": 230.09419404,
"block_info": {
"prevout_spent": 16961.53872576,
"coinbase": 3.18917352,
"new_outputs_ex_coinbase": 16961.47455224,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 939623
{
"avgfee": 1564,
"avgfeerate": 6,
"avgtxsize": 380,
"blockhash": "00000000000000000001279fc25f1e100c2cd239fdf4aa343394801f839af6ec",
"feerate_percentiles": [
3,
3,
4,
5,
8
],
"height": 939623,
"ins": 6788,
"maxfee": 417500,
"maxfeerate": 441,
"maxtxsize": 41121,
"medianfee": 765,
"mediantime": 1772821846,
"mediantxsize": 223,
"minfee": 141,
"minfeerate": 1,
"mintxsize": 150,
"outs": 12828,
"subsidy": 312500000,
"swtotal_size": 1464921,
"swtotal_weight": 3610449,
"swtxs": 3777,
"time": 1772828261,
"total_out": 1696147455224,
"total_size": 1560272,
"total_weight": 3991853,
"totalfee": 6417352,
"txs": 4104,
"utxo_increase": 6040,
"utxo_size_inc": 444694,
"utxo_increase_actual": 5931,
"utxo_size_inc_actual": 433200
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 11219384994,
"totalbytessent": 14230668650,
"timemillis": 1772828262242,
"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 1 19
out 14 0 14 2 4
total 32 1 33
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62229,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62229
}
}
$ halving.sh 939623
=====================================
Bitcoin Block Halving prediction
=====================================
bc=939623
gbt=1231006505
bbt=1772828261
This is average time to mine a block
(1772828261-1231006505)/939623
bts=576.6367781155015197568389
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Sun Mar 12 12:08:18 UTC 2028
-------------------------------------
Next palindrome will be 939939
predicted to happen at this time:
Sun Mar 8 22:54:38 UTC 2026
-------------------------------------
Current mining epoch number is 466.
The next fortnight happens in block
941472 and probably around this time:
Thu Mar 19 04:27:42 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
2cc2e80f93695aca
ba385c8844882d2702cdb00a26e72702146bee662683120fd43b334de6255303
8e0a3584cd1e7942
9e6f7ab961978f1ea33f119918754e24892e74195280fc020c07ea2b81d195b5
7796e126cbbf7023
aa801f5a10f68987f253009c58f7d6217c1344b316ac7eff4609e061b3be702b
b580ea4cc1766007
a6da50b97485b28c193a314f2773f73597161764847956ede8ba3186688729e1
7caf46fc5ca39cd1
07d25e26fc102111bda9c018f4c0e1282d4bb699e4549fbdb60988e3a4150ef3
04af811163b1dd19
8b65ab9b48593f1a8dbf744ef8ae041340627e94b6b54df8b3611dc2cc9f188e
8a0cae152fc0e4a6
520d5146235a2d00c982e4b52d64fc24ed6d2438f5cf31167809d64c5c040a8d
b84b0a562bc7fbfd
ef78b5d9e874d951f32e7af4a7d3a5c6961823cc5945dd337a5ca4b91eeff0b5
e7bb3d482e5189fd
d4287d11046469a242b2dddcbe3e8555198525a1a629dd84729c56fd31c4d91d
e77661a8f8b2fc80
13cd63e2631fdd944d138e45de68ded1c0ec5d2532250cb0d0d239b9508365d9
7b9a1ca6d304d08a
da79036e34a0b18771339d22b4f2b139708546b99d9371da94d6e94be42e139f
7d86c05aacd07b59
e07fb97b7ee6d698341807a3fd3b5ada711dc26e4f4d90934b0f2c909540148d
fe7fdedc046beb83
1b4fd6541d4960ed24766ff848c3b91e59f64587413df1831ce5b4728b0f2c9e
a5741a8e64d1928b
e3090de64341bf8321a25fc0a186d840655ff91de61c09126662b6994ce0eab1
177deac158fc850c
7717ddf297fb660d2ea9ec6c1d2efe25dda581ec7a6ac4d41ce2cab9074e9c4b
ba76bb2026615e72
e6d111a5747a789b6a066259db1203e5e26f38cd81b47545a6a8f7944d40a4c4
$ niceblack.sh $BH $BC
| | |
_ \ | _ \ _| | /
_.__/_|\___/\__|_\_\
_ \__ / _ \ / _ )__ /
\_ / _ \\_ / _ \ / _ \
_/ ___/ _/\___/___|___/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 279f c25f 1e1. 1f |
| 2. .c2c d239 fdf4 aa34 2f |
| 3. 3394 8.1f 839a f6ec 3f |
'=== ==== ==== ==== ==== ==='
ak: b4f9 84