# on receiving block 943155 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2026-04-01T04:04:27Z
# as written in the block header
2026-04-01T04:04:20Z
$ uptime # since last reboot
04:04:27 up 12 days, 18:57, 0 users, load average: 2.03, 1.30, 1.61
$ battery.sh
100%, Power Supply Online
$ uname -smnr
Linux singer 6.18.2-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2155888 kB
$ du -h -d1 .bitcoin/
12.1G .bitcoin/indexes
4.3G .bitcoin/signet
2.7M .bitcoin/wallets
97.8G .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
943155
$ BH=$(bitcoin-cli getblockhash 943155); echo $BH
00000000000000000001c1b40c45fc6aff812c55a3f0ded6761dab594e92d1f4
$ bitcoin-cli getblockheader 00000000000000000001c1b40c45fc6aff812c55a3f0ded6761dab594e92d1f4
{
"hash": "00000000000000000001c1b40c45fc6aff812c55a3f0ded6761dab594e92d1f4",
"confirmations": 1,
"height": 943155,
"version": 536870912,
"versionHex": "20000000",
"merkleroot": "8a156d708c1b9498bbf7542ad365d94a12ddf15498d9be819b178594010565fc",
"time": 1775016260,
"mediantime": 1775013718,
"nonce": 257912267,
"bits": "17021a91",
"target": "000000000000000000021a910000000000000000000000000000000000000000",
"difficulty": 133793147307542.8,
"chainwork": "00000000000000000000000000000000000000011bf119cda35352a01e5917b0",
"nTx": 4272,
"previousblockhash": "00000000000000000000c3b66d2b12ac25cefb924b918fb146270aca23a7067d"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 c1b4 .c45 fc6a
ff81 2c55 a3f. ded6
761d ab59 4e92 d1f4
$ : 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
943155 sf: ...1 .c45 a3f. d1f4
$ : 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 .
943155 sk: d1f4 94
$ : 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 .
943155 ak: dd4a 94
$ : Following is the jointkode
943155 jk: d1f4 dd4a 94
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 15748,
"bytes": 9918143,
"usage": 53831992,
"total_fee": 0.01077859,
"maxmempool": 300000000,
"mempoolminfee": 0.00000100,
"minrelaytxfee": 0.00000100,
"incrementalrelayfee": 0.00000100,
"unbroadcastcount": 7,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000,
"limitclustercount": 64,
"limitclustersize": 101000,
"optimal": true
}
$ gmm.sh
108
## Current epoch estimation is +3.26%
## 1683 of 2016, i.e. 83%, 333 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
9.888253947765768e+20
$ bitcoin-cli getnetworkhashps 2016 941471
9.575843405435805e+20
$ bitcoin-cli getnetworkhashps 2016 939455
1.037983005536264e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 943155,
"bestblock": "00000000000000000001c1b40c45fc6aff812c55a3f0ded6761dab594e92d1f4",
"txouts": 165150046,
"bogosize": 12940661142,
"muhash": "b03928e29e5a9991ba2ec765a2ab29ea83bc9a91337a9a3a884a8cd40568210b",
"total_amount": 20009632.40524656,
"total_unspendable_amount": 230.09475344,
"block_info": {
"prevout_spent": 2758.03070800,
"coinbase": 3.13929838,
"new_outputs_ex_coinbase": 2758.01640962,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 943155
{
"avgfee": 334,
"avgfeerate": 1,
"avgtxsize": 378,
"blockhash": "00000000000000000001c1b40c45fc6aff812c55a3f0ded6761dab594e92d1f4",
"feerate_percentiles": [
0,
0,
1,
2,
3
],
"height": 943155,
"ins": 7996,
"maxfee": 58690,
"maxfeerate": 75,
"maxtxsize": 64056,
"medianfee": 17,
"mediantime": 1775013718,
"mediantxsize": 222,
"minfee": 15,
"minfeerate": 0,
"mintxsize": 150,
"outs": 9813,
"subsidy": 312500000,
"swtotal_size": 1487754,
"swtotal_weight": 3484311,
"swtxs": 4116,
"time": 1775016260,
"total_out": 275801640962,
"total_size": 1614623,
"total_weight": 3991787,
"totalfee": 1429838,
"txs": 4272,
"utxo_increase": 1817,
"utxo_size_inc": 125917,
"utxo_increase_actual": -875,
"utxo_size_inc_actual": -67783
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 1929177905,
"totalbytessent": 3771746282,
"timemillis": 1775016268033,
"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 19 1 20
out 10 0 10 2
total 29 1 30
Local services: witness, compact filters, network limited, p2p v2
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62907,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62907
}
}
$ halving.sh 943155
=====================================
Bitcoin Block Halving prediction
=====================================
bc=943155
gbt=1231006505
bbt=1775016260
This is average time to mine a block
(1775016260-1231006505)/943155
bts=576.7972159430677427700189
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Tue Mar 14 10:55:58 UTC 2028
-------------------------------------
Next palindrome will be 943349
predicted to happen at this time:
Thu Apr 2 11:09:18 UTC 2026
-------------------------------------
Current mining epoch number is 467.
The next fortnight happens in block
943488 and probably around this time:
Fri Apr 3 09:25:33 UTC 2026
### v2_peerinfo are in v2_peerinfo-bitcoin.txt
$ bitcoin-cli getpeerinfo | grep -w 'v2' | uniq -c
11 "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
53cb09911245d260
50c22bb3c18ff9ccf388cc1dd721210fd780266fa55a7565f136069a70f52e26
9e428a26ea4cf73a
f1adb7a2ae179027c7d0ec417191f5922b82856cf31f683e8bb85443c3c7294e
cdff5a742eef141a
84793916eb3773cec2e104afbe78fe32aaf01b91977bd010a3250b024eee140c
93109da52ab42c55
b0d96ab486ddd61c1afe8ca5f9c90f40a1bac36c666e268a0b3e99da24de3145
aa553ee8cea85fe0
dc95a76ee26addfed640e64fc8fd12c9d792238dd7a6d94bedf4cfd7796354bb
f93f5ce6859a804e
8045ee797d8a8df5cc8d2982063eba965de9e58826bdc8edd5d3c2fe873d3772
28fedca04b7887ac
b0cfc453555c6174441b04b48773edd9e454227cd9ce8e3e2f4a4513fbaebd75
3fefc566362d09e4
aa7c401092d7f574374165c27411b1d76163a16513b193ee3276f3344903740e
4fa380194c83be15
dbaea37e427a38914c2eb75b33a1907adad156ae750a00b761a79b9562e042d0
fbc25ca58b448a3a
feeff75b471a9327441a0156714b8f7d4b4fe9038a772448ccf88843331f985d
7b41f29724e760d6
4793347a490488bff5482d29af8f2ce370f6c6ea054e45eeffe97a56cd157fac
$ niceblack.sh $BH $BC
##### # #####
# # # # # #
# # # # #
###### # # #####
# ####### #
# # # # #
##### # #####
# ####### #######
## # #
# # # #
# ###### ######
# # #
# # # # #
##### ##### #####
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 c1b4 .c45 fc6a 1f |
| 2. ff81 2c55 a3f. ded6 2f |
| 3. 761d ab59 4e92 d1f4 3f |
'=== ==== ==== ==== ==== ==='
jk: d1f4 dd4a 94