# on receiving block 939137 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-03-03T12:34:21Z
# as written in the block header
2026-03-03T12:34:36Z
$ uptime # since last reboot
12:34:21 up 14 days, 18:04, 0 users, load average: 13.37, 4.43, 2.35
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2119680 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
10.8G .bitcoin/chainstate
124.9G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 433.5G 477.0G 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
939137
$ BH=$(bitcoin-cli getblockhash 939137); echo $BH
00000000000000000000b1f655f7f52be1d7130a3affccb323ddb0348cf3e991
$ bitcoin-cli getblockheader 00000000000000000000b1f655f7f52be1d7130a3affccb323ddb0348cf3e991
{
"hash": "00000000000000000000b1f655f7f52be1d7130a3affccb323ddb0348cf3e991",
"confirmations": 1,
"height": 939137,
"version": 617472000,
"versionHex": "24cde000",
"merkleroot": "fc855da775d5261997cbec47b37a86ae1207148b9e0d66fa3a4a22faaa8135b4",
"time": 1772541276,
"mediantime": 1772539213,
"nonce": 47466931,
"bits": "1701f303",
"target": "00000000000000000001f3030000000000000000000000000000000000000000",
"difficulty": 144398401518100.9,
"chainwork": "0000000000000000000000000000000000000001141ea63f7ee6aaef3f4a78e4",
"nTx": 3003,
"previousblockhash": "00000000000000000000e9acbf3950557bf41f43f838ee61c875ffc52c0fd3c6"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... b1f6 55f7 f52b
e1d7 13.a 3aff ccb3
23dd b.34 8cf3 e991
$ : 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
939137 sf: 13.a b.34 e991
$ : 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 .
939137 sk: e991 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 .
939137 ak: e33. 95
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 23168,
"bytes": 14452145,
"usage": 87742560,
"total_fee": 0.01641359,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
113
## Current epoch estimation is +0.18%
## 1697 of 2016, i.e. 84%, 319 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.034783064593117e+21
$ bitcoin-cli getnetworkhashps 2016 937439
1.03283744073678e+21
$ bitcoin-cli getnetworkhashps 2016 935423
9.009048549126172e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 939137,
"bestblock": "00000000000000000000b1f655f7f52be1d7130a3affccb323ddb0348cf3e991",
"txouts": 164895875,
"bogosize": 12919315248,
"muhash": "ad4a541808edb8d304632f4c139c793213560577a306d874ef35faa70850f293",
"total_amount": 19997076.15583885,
"total_unspendable_amount": 230.09416115,
"block_info": {
"prevout_spent": 5433.25681736,
"coinbase": 3.13425173,
"new_outputs_ex_coinbase": 5433.24756562,
"unspendable": 0.00000001,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000001,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 939137
{
"avgfee": 308,
"avgfeerate": 0,
"avgtxsize": 806,
"blockhash": "00000000000000000000b1f655f7f52be1d7130a3affccb323ddb0348cf3e991",
"feerate_percentiles": [
0,
0,
0,
1,
1
],
"height": 939137,
"ins": 5912,
"maxfee": 68075,
"maxfeerate": 165,
"maxtxsize": 263916,
"medianfee": 13,
"mediantime": 1772539213,
"mediantxsize": 207,
"minfee": 13,
"minfeerate": 0,
"mintxsize": 150,
"outs": 6569,
"subsidy": 312500000,
"swtotal_size": 2334660,
"swtotal_weight": 3648033,
"swtxs": 2938,
"time": 1772541276,
"total_out": 543324756563,
"total_size": 2420567,
"total_weight": 3991661,
"totalfee": 925173,
"txs": 3003,
"utxo_increase": 657,
"utxo_size_inc": 22982,
"utxo_increase_actual": -1495,
"utxo_size_inc_actual": -107073
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 5970392925,
"totalbytessent": 10351436174,
"timemillis": 1772541262620,
"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 12 1 13
out 14 0 14 2 4
total 26 1 27
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 63251,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 63251
}
}
$ halving.sh 939137
=====================================
Bitcoin Block Halving prediction
=====================================
bc=939137
gbt=1231006505
bbt=1772541276
This is average time to mine a block
(1772541276-1231006505)/939137
bts=576.6296018263556580609026
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Sun Mar 12 10:02:43 UTC 2028
-------------------------------------
Next palindrome will be 939939
predicted to happen at this time:
Sun Mar 8 21:02:12 UTC 2026
-------------------------------------
Current mining epoch number is 465.
The next fortnight happens in block
939456 and probably around this time:
Thu Mar 5 15:40:20 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
15 "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
c82a6d4ad2f3df30
d8fd97a6c5a58e1ec91ac14fe6d030c457b09cec393235933cc4267a1c66c447
d549ed30134d96fd
988503a87f386f1b2719d4e63f3f69821a19c4f787cf271f142bead6dae0b01c
7796e126cbbf7023
aa801f5a10f68987f253009c58f7d6217c1344b316ac7eff4609e061b3be702b
b580ea4cc1766007
a6da50b97485b28c193a314f2773f73597161764847956ede8ba3186688729e1
7caf46fc5ca39cd1
07d25e26fc102111bda9c018f4c0e1282d4bb699e4549fbdb60988e3a4150ef3
04af811163b1dd19
8b65ab9b48593f1a8dbf744ef8ae041340627e94b6b54df8b3611dc2cc9f188e
8a0cae152fc0e4a6
520d5146235a2d00c982e4b52d64fc24ed6d2438f5cf31167809d64c5c040a8d
b84b0a562bc7fbfd
ef78b5d9e874d951f32e7af4a7d3a5c6961823cc5945dd337a5ca4b91eeff0b5
952c29ffb60124fb
1742c625bfd6ff953bd8554753b23c2455ddbfbb29b2c2b42e692cf82b088cda
9f24753110242a16
d93b58d8985b29968bb8b900337ed1cd53c06b4c90c04d570c571a800312c6b9
2f483f8248b737c5
456b7ca0ee1db3726caee7c2d214aeca4abe9aa50beae5b84bfedd1cedae1391
e7bb3d482e5189fd
d4287d11046469a242b2dddcbe3e8555198525a1a629dd84729c56fd31c4d91d
8a0762cd627b1248
249b458aa33c75b80c1f1a66dfdf854b4b97c5868a204079732a6c75b79d30ee
$ niceblack.sh $BH $BC
| | |
_ \ | _ \ _| | /
_.__/_|\___/\__|_\_\
_ \__ / _ \_ |__ /__ /
\_ / _ \\_ / | _ \ /
_/ ___/ _/ _|___/ _/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... b1f6 55f7 f52b 1f |
| 2. e1d7 13.a 3aff ccb3 2f |
| 3. 23dd b.34 8cf3 e991 3f |
'=== ==== ==== ==== ==== ==='
ak: e33. 95