# on receiving block 906154 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-07-19T00:24:55Z
# as written in the block header
2025-07-19T00:24:29Z
$ uptime # since last reboot
00:24:54 up 166 days, 12:04, 0 users, load average: 2.48, 2.09, 2.41
$ battery.sh
140%, Power Supply Online
$ uname -smnr
Linux singer 6.6.37-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 1599456 kB
$ du -h -d1 .bitcoin/
11.4G .bitcoin/indexes
2.9G .bitcoin/signet
3.8M .bitcoin/wallets
97.7G .bitcoin/blocks
10.8G .bitcoin/chainstate
122.8G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 840.6G 69.8G 92% /
$ bitcoind -version
Bitcoin Core daemon version v29.99.0-5f9c5597106e
Copyright (C) 2009-2025 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
906154
$ BH=$(bitcoin-cli getblockhash 906154); echo $BH
00000000000000000000cb55a65a96f0218fede91022590d179dc223ca39c157
$ bitcoin-cli getblockheader 00000000000000000000cb55a65a96f0218fede91022590d179dc223ca39c157
{
"hash": "00000000000000000000cb55a65a96f0218fede91022590d179dc223ca39c157",
"confirmations": 1,
"height": 906154,
"version": 1073733632,
"versionHex": "3fffe000",
"merkleroot": "2efada9c3f8b3b96d4e4359d1d7ed625bd78c4f3c65f35675d8beb0c247d7a83",
"time": 1752884669,
"mediantime": 1752881480,
"nonce": 154617897,
"bits": "17023aa6",
"target": "000000000000000000023aa60000000000000000000000000000000000000000",
"difficulty": 126271255279307,
"chainwork": "0000000000000000000000000000000000000000d345e38a46bd74624c2c6f5f",
"nTx": 3062,
"previousblockhash": "000000000000000000004d1dd070362eb2b83a75e570cbeeb5c9b6f29681c2c7"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... cb55 a65a 96f.
218f ede9 1.22 59.d
179d c223 ca39 c157
$ : 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
906154 sf: 96f. 1.22 59.d c157
$ : 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 .
906154 sk: c157 85
$ : 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 .
906154 ak: a.66 85
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 13972,
"bytes": 14507615,
"usage": 76820400,
"total_fee": 0.04845868,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 0,
"fullrbf": true
}
$ gmm.sh
333
## Current epoch estimation is -0.3%
## 970 of 2016, i.e. 48%, 1046 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
8.998444541678953e+20
$ bitcoin-cli getnetworkhashps 2016 905183
9.025885092859546e+20
$ bitcoin-cli getnetworkhashps 2016 903167
8.366861911869141e+20
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 906154,
"bestblock": "00000000000000000000cb55a65a96f0218fede91022590d179dc223ca39c157",
"txouts": 167138178,
"bogosize": 13095012787,
"muhash": "a2dd268b0077386213e44da7fca8109bd33b06df263e97956db9ad28a5b3c5cd",
"total_amount": 19894013.32582487,
"total_unspendable_amount": 221.04917513,
"block_info": {
"prevout_spent": 3520.21537370,
"coinbase": 3.15996692,
"new_outputs_ex_coinbase": 3520.18040678,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 906154
{
"avgfee": 1142,
"avgfeerate": 3,
"avgtxsize": 557,
"blockhash": "00000000000000000000cb55a65a96f0218fede91022590d179dc223ca39c157",
"feerate_percentiles": [
1,
1,
2,
3,
5
],
"height": 906154,
"ins": 7937,
"maxfee": 116116,
"maxfeerate": 254,
"maxtxsize": 147053,
"medianfee": 446,
"mediantime": 1752881480,
"mediantxsize": 226,
"minfee": 116,
"minfeerate": 1,
"mintxsize": 150,
"outs": 9912,
"subsidy": 312500000,
"swtotal_size": 1630243,
"swtotal_weight": 3684214,
"swtxs": 2839,
"time": 1752884669,
"total_out": 352018040678,
"total_size": 1707143,
"total_weight": 3991814,
"totalfee": 3496692,
"txs": 3062,
"utxo_increase": 1975,
"utxo_size_inc": 140355,
"utxo_increase_actual": 1594,
"utxo_size_inc_actual": 105460
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 10125111553,
"totalbytessent": 22886350413,
"timemillis": 1752884695501,
"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 v29.99.0-5f9c5597106e - server 70016/Satoshi:29.99.0/
ipv4 npr total block libre
in 26 2 28
out 14 0 14 2 4
total 40 2 42
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62197,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62197
}
}
$ halving.sh 906154
=====================================
Bitcoin Block Halving prediction
=====================================
bc=906154
gbt=1231006505
bbt=1752884669
This is average time to mine a block
(1752884669-1231006505)/906154
bts=575.9259332012735128096186
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Fri Mar 3 20:48:30 UTC 2028
-------------------------------------
Next palindrome will be 906609
predicted to happen at this time:
Tue Jul 22 01:11:55 UTC 2025
-------------------------------------
Current mining epoch number is 449.
The next fortnight happens in block
907200 and probably around this time:
Fri Jul 25 23:44:47 UTC 2025
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
21 "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
b3ed804c370d40e7
a48bede8229790e6837a53a0c77257d4971a0afa377ceebe7db2742fb8dbc0b0
9e6701c009205411
d01701aaa70964f837072006048cd0a42f31418aff8dcc25559e8f2292afc137
7b9a1ca6d304d08a
b1000a52db0867633071e45a574d8e48876dbdc02d85f8554b7300a3d43b1757
74026556dec85b12
e6fcd96e43bb22b5b96e8cbf5f0387dd6d9ab36551e77489fdce1469f3f38602
5edd4df6e5dd001e
adec5f922ae91d175999ed4db233deffa920c923fa5760cee755bbe0e20676b6
2a83937f2ce67b3d
05c8a282d10f2f3aaec9d5ef54edc48786101049ad2553c84572b98f184cabfc
9424716c930df331
149acbdf685c9235f55c5521737b54e20839d6c83c4aa1b8f4d4851907667654
8f6db2241c953a5b
a647df4db6e4fad16929af25fef3e1eb24a4f55e14a6f1e7f68a8a70c5a77ca2
4741ea595cf7e485
05de41eab44b158ed26de5a82d4f5320dc21a0f895ace6611ff7801400d2a793
7a1bcf7e4b9dc15b
e7f7c929a378fe604ebb469cf7509f8a5b74af5c921538263d27fcb6be32f793
304763668ec453f0
b430e34c5b51de5d7b390d95c596fded01021d0c9a7d6ae4473c1cfa82809813
716217be0b59d813
95292d86f74c172dcdedc4a693dbc5c6638631765e9d39b7f066836571252abd
d71a2a8501b5565b
145982966bb54ce641bcb2278d44dff3cf9b73ca5110efb0a2c8d8445d4404a1
35e4a85ae5dc6bd9
7d2d5214ea9b6cba551d687633200661ee282f2de4031422d314f350827ca5f1
5873cd12c2a721ee
4aafef14eb1931cc1881e587f9a95777ea71ff802d64dec9b03c657b04476f5a
7a888dfc22a33814
481f87f463eaf1f2b963dd04bce8989737adf783818e640f89c5312289707290
367d0597764feac4
17881e752a295d8c8895c1366f2588a3f1486bcc6f0a5de2eabbb63c80bab0cc
f5cba9bdc5a91076
03d7f8e6703141f7e9ee150c8de0a3e45f4f927b28b5bbdb6175583c2d9494ad
19bfac0bcd296543
9e9d275435f9bdaf89dbdc01b4deae04d6748e8e06cd21bd1058ee661f9296fb
f65dd1cdae51ead4
f5788b494f688c9abd97bfe4341c78426102b87afd97a38d9d7f12b091179ae1
776ef478353b6aa2
0b4abab620bdacb7100a25de974c95916ca960931ce9983dd75c9f1c1de89bc7
$ niceblack.sh $BH $BC
__ __ __
/ / / /__ ____/ /__
/ _ \/ / _ \/ __/ '_/
/_.__/_/\___/\__/_/\_\
___ ___ ___________ ____
/ _ \/ _ \/ __< / __// / /
\_, / // / _ \/ /__ \/_ _/
/___/\___/\___/_/____/ /_/
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. .... cb55 a65a 96f. 1f |
| 2. 218f ede9 1.22 59.d 2f |
| 3. 179d c223 ca39 c157 3f |
'=== ==== ==== ==== ==== ==='
ak: a.66 85