# on receiving block 928809 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-21T07:14:07Z
# as written in the block header
2025-12-21T07:13:56Z
$ uptime # since last reboot
07:14:07 up 129 days, 17:04, 0 users, load average: 1.27, 1.23, 1.65
$ battery.sh
50%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2098864 kB
$ du -h -d1 .bitcoin/
1.5G .bitcoin/testnet4
11.9G .bitcoin/indexes
3.7G .bitcoin/signet
41.8M .bitcoin/wallets
97.7G .bitcoin/blocks
18.6M .bitcoin/regtest
10.6G .bitcoin/chainstate
125.6G .bitcoin/
$ df -h .
Filesystem Size Used Available Use% Mounted on
/dev/sda3 911.4G 834.1G 76.4G 92% /
$ bitcoind -version
Bitcoin Core daemon version libre-relay-v30.0-1
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
928809
$ BH=$(bitcoin-cli getblockhash 928809); echo $BH
00000000000000000001db2edce17af63a36a2b42c2c799b13702a25840b3088
$ bitcoin-cli getblockheader 00000000000000000001db2edce17af63a36a2b42c2c799b13702a25840b3088
{
"hash": "00000000000000000001db2edce17af63a36a2b42c2c799b13702a25840b3088",
"confirmations": 1,
"height": 928809,
"version": 596975616,
"versionHex": "23952000",
"merkleroot": "e3c57e5a4b5b30e0593e11efec6cc2c2854e102639e3a69412acbf54f5d6d911",
"time": 1766301236,
"mediantime": 1766299036,
"nonce": 1896773441,
"bits": "1701e63a",
"target": "00000000000000000001e63a0000000000000000000000000000000000000000",
"difficulty": 148195306640204.7,
"chainwork": "0000000000000000000000000000000000000000ffd26780348737640511073e",
"nTx": 3954,
"previousblockhash": "000000000000000000000360d80be9cc26a720a18830f9aed6de1806ae1b20e5"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
...1 db2e dce1 7af6
3a36 a2b4 2c2c 799b
137. 2a25 84.b 3.88
$ : 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
928809 sf: ...1 137. 84.b 3.88
$ : 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 .
928809 sk: 3.88 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 .
928809 ak: 3ddb 84
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 30349,
"bytes": 26928925,
"usage": 143922592,
"total_fee": 0.02937510,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
108
## Current epoch estimation is +0.43%
## 1449 of 2016, i.e. 71%, 567 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.06518523891122e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 928809,
"bestblock": "00000000000000000001db2edce17af63a36a2b42c2c799b13702a25840b3088",
"txouts": 164734579,
"bogosize": 12911894075,
"muhash": "d8b6f6b77176dfda9702e7f7de1d3799aa2b2a224d20800188c1ca1e9ed7c2be",
"total_amount": 19964801.16034159,
"total_unspendable_amount": 230.08965841,
"block_info": {
"prevout_spent": 61.94612974,
"coinbase": 3.12778117,
"new_outputs_ex_coinbase": 61.94334857,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 928809
{
"avgfee": 70,
"avgfeerate": 0,
"avgtxsize": 437,
"blockhash": "00000000000000000001db2edce17af63a36a2b42c2c799b13702a25840b3088",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 928809,
"ins": 8140,
"maxfee": 9810,
"maxfeerate": 20,
"maxtxsize": 107191,
"medianfee": 38,
"mediantime": 1766299036,
"mediantxsize": 370,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 151,
"outs": 10782,
"subsidy": 312500000,
"swtotal_size": 1720514,
"swtotal_weight": 3961214,
"swtxs": 3931,
"time": 1766301236,
"total_out": 6194334857,
"total_size": 1728191,
"total_weight": 3991922,
"totalfee": 278117,
"txs": 3954,
"utxo_increase": 2642,
"utxo_size_inc": 153003,
"utxo_increase_actual": -1143,
"utxo_size_inc_actual": -117960
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3773002312,
"totalbytessent": 9207055832,
"timemillis": 1766301247654,
"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 libre-relay-v30.0-1 - server 70016/Satoshi:30.0.0/
ipv4 npr total block libre
in 25 2 27
out 14 0 14 2 4
total 39 2 41
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62665,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62665
}
}
$ halving.sh 928809
=====================================
Bitcoin Block Halving prediction
=====================================
bc=928809
gbt=1231006505
bbt=1766301236
This is average time to mine a block
(1766301236-1231006505)/928809
bts=576.3231780450253550241707
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 8 16:40:18 UTC 2028
-------------------------------------
Next palindrome will be 928829
predicted to happen at this time:
Sun Dec 21 10:26:02 UTC 2025
-------------------------------------
Current mining epoch number is 460.
The next fortnight happens in block
929376 and probably around this time:
Thu Dec 25 02:00:11 UTC 2025
### 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
9368a2868c6ca52d
d8697c481b6339734411359c40f32a07e9b589d78ee0ace63a3c1ea3b5f75df2
ce11c19bf8bf5570
88bd3b684d4ce4099c2c9e78365007b5e1e13b37b69580136433c2cc1032188b
b15e4d890262ee80
e9a41b96e5c4e09fef52c4a49db89376e7efd034bd4a2e625adc2c02885dd5bd
b33d9979c3ac519f
fe468c9082d1f2d2a5698000839f0612acc57604b1e68db987f11cb485d8439c
7b9a1ca6d304d08a
7f1a74c40a932e0442fb8f3545dc5a8b09c3c7bb5ba078a4987b13dfc5d3b4d9
2f483f8248b737c5
c52be77074176d57f290e6033fa8b7e357759b7d885b957de26dd45b2b9b4df7
9dcb5e85e7380fc8
a600f255f3c73c6a94dfeb4625c9792b0bf2962b5e5edb4c49fbc61a5872c8c8
3292d7567fdd2c15
dfbb9984b5bf4277aeae08d6a62b4fa2065738ffdb1e496788087a337275ec66
952c29ffb60124fb
31733c8f2ec035a6406a5ca456e0407131e95142eda2e4a745f09a9976626280
842b963a3d2d3874
c0fe0d4ff93a881503999420aca49db8028f7a2e070090a15a89ad3497454203
fc75407f2e57534b
3f21429c08bae67e5bb32ee2155e5164547ff4387ef093ba0904fac7c0e1cd60
847869ee07bf7a24
ec4e3c4ccbcf3bf6f02fb9bde838be7e41047e21784fd1d91634fe56adff3a54
7a1e7fe2aa7e3ee9
e9d450177142cfd072107f1a8b03d16730c622a0c6cfb89f2f814090647d1706
330da39f6424cad2
cd6e1f6ae3ddd39b2e97c4ace8a19e093720eb2077829405f4900c971449a597
4a99f0b76ef8b24d
292e8e991a57cc3dc33ac4c22319601f1e7750a5e0efb5d3dfe55bd368ce07e0
9c20b19b7f506402
22b3de660548c9cebd3cde96bc58dabfe040eee3c3418795cf0d7ff2cdbeb787
bbe0054e8555bda4
bfa84a061ad31566e4454c8db8635b1f35d3b184f4bfa070da65214e7c05ddda
95a24ea50d2afc6f
a45ccfba656c50d68d6662df955abd2bca6daac532f0d293a862726748bc0cf3
$ niceblack.sh $BH $BC
##### ##### #####
# # # # # #
# # # # #
###### ##### #####
# # # #
# # # # #
##### ####### #####
##### ### #####
# # # # # #
# # # # # #
##### # # ######
# # # # #
# # # # # #
##### ### #####
,----- .123 4567 89ab cdef -----,
| |
| .. .... .... .... .... .f |
| 1. ...1 db2e dce1 7af6 1f |
| 2. 3a36 a2b4 2c2c 799b 2f |
| 3. 137. 2a25 84.b 3.88 3f |
'=== ==== ==== ==== ==== ==='
ak: 3ddb 84
...............| ||.||.||..|.|||.