# on receiving block 928881 here
$ date -u '+%Y-%m-%dT%H:%M:%SZ'
2025-12-21T19:54:01Z
# as written in the block header
2025-12-21T19:53:42Z
$ uptime # since last reboot
19:54:01 up 130 days, 5:44, 0 users, load average: 1.00, 1.04, 1.53
$ battery.sh
49%, Power Supply Online
$ uname -smnr
Linux singer 6.12.40-0-lts x86_64
$ grep ^MemAvailable /proc/meminfo
MemAvailable: 2062504 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 834.0G 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
928881
$ BH=$(bitcoin-cli getblockhash 928881); echo $BH
0000000000000000000038c0b13ea5603cf16876869c31e99a316ec53a9c4035
$ bitcoin-cli getblockheader 0000000000000000000038c0b13ea5603cf16876869c31e99a316ec53a9c4035
{
"hash": "0000000000000000000038c0b13ea5603cf16876869c31e99a316ec53a9c4035",
"confirmations": 1,
"height": 928881,
"version": 763084800,
"versionHex": "2d7bc000",
"merkleroot": "68b49989f8a4fcff61d761b3cf23df2091847b04d0a265c5224732301a01ae7d",
"time": 1766346822,
"mediantime": 1766345084,
"nonce": 2719501665,
"bits": "1701e63a",
"target": "00000000000000000001e63a0000000000000000000000000000000000000000",
"difficulty": 148195306640204.7,
"chainwork": "0000000000000000000000000000000000000000fff8500388eff95fd51af716",
"nTx": 5518,
"previousblockhash": "00000000000000000001da5a93a726a85b7589815a9397cd5d0dc348cd1a4614"
}
$ echo $BH | tr 0 . | fold -w 4 | paste -d " " - - - -
.... .... .... ....
.... 38c. b13e a56.
3cf1 6876 869c 31e9
9a31 6ec5 3a9c 4.35
$ : 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
928881 sf: 38c. a56. 4.35
$ : 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 .
928881 sk: 4.35 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 .
928881 ak: 4131 85
### niceblack moved to the end
$ bitcoin-cli getmempoolinfo
{
"loaded": true,
"size": 25878,
"bytes": 25153002,
"usage": 131494240,
"total_fee": 0.02679273,
"maxmempool": 300000000,
"mempoolminfee": 0.00000001,
"minrelaytxfee": 0.00000001,
"incrementalrelayfee": 0.00000001,
"unbroadcastcount": 0,
"fullrbf": true,
"permitbaremultisig": true,
"maxdatacarriersize": 100000
}
$ gmm.sh
106
## Current epoch estimation is -0.3%
## 1521 of 2016, i.e. 75%, 495 to go
## Current and previous two in numbers:
$ bitcoin-cli getnetworkhashps 2016
1.057300556027559e+21
$ bitcoin-cli getnetworkhashps 2016 927359
1.060568478882824e+21
$ bitcoin-cli getnetworkhashps 2016 925343
1.068462185929668e+21
$ bitcoin-cli gettxoutsetinfo muhash
{
"height": 928881,
"bestblock": "0000000000000000000038c0b13ea5603cf16876869c31e99a316ec53a9c4035",
"txouts": 164656404,
"bogosize": 12905936730,
"muhash": "ab4f2bd0472ed1e36d0154269d774ac0d5c3ee74250c8b5e115365411d1e0362",
"total_amount": 19965026.16034022,
"total_unspendable_amount": 230.08965978,
"block_info": {
"prevout_spent": 949.23031671,
"coinbase": 3.12830801,
"new_outputs_ex_coinbase": 949.22700870,
"unspendable": 0.00000000,
"unspendables": {
"genesis_block": 0.00000000,
"bip30": 0.00000000,
"scripts": 0.00000000,
"unclaimed_rewards": 0.00000000
}
}
}
$ bitcoin-cli getblockstats 928881
{
"avgfee": 59,
"avgfeerate": 0,
"avgtxsize": 372,
"blockhash": "0000000000000000000038c0b13ea5603cf16876869c31e99a316ec53a9c4035",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 928881,
"ins": 5812,
"maxfee": 13702,
"maxfeerate": 40,
"maxtxsize": 388422,
"medianfee": 20,
"mediantime": 1766345084,
"mediantxsize": 222,
"minfee": 17,
"minfeerate": 0,
"mintxsize": 150,
"outs": 11192,
"subsidy": 312500000,
"swtotal_size": 2040083,
"swtotal_weight": 3940259,
"swtxs": 5464,
"time": 1766346822,
"total_out": 94922700870,
"total_size": 2052938,
"total_weight": 3991679,
"totalfee": 330801,
"txs": 5518,
"utxo_increase": 5380,
"utxo_size_inc": 383678,
"utxo_increase_actual": 267,
"utxo_size_inc_actual": 19644
}
$ bitcoin-cli getnettotals
{
"totalbytesrecv": 3967096088,
"totalbytessent": 9784475933,
"timemillis": 1766346842355,
"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 28 2 30
out 14 0 14 2 4
total 42 2 44
Local services: witness, compact filters, network limited, p2p v2, libre
Local addresses: n/a
$ bitcoin-cli -addrinfo
{
"addresses_known": {
"ipv4": 62763,
"ipv6": 0,
"onion": 0,
"i2p": 0,
"cjdns": 0,
"total": 62763
}
}
$ halving.sh 928881
=====================================
Bitcoin Block Halving prediction
=====================================
bc=928881
gbt=1231006505
bbt=1766346822
This is average time to mine a block
(1766346822-1231006505)/928881
bts=576.3275819748902444013340
Now let's multiply that by 1050000
which is the block number of next
halving and get the prediction:
Wed Mar 8 17:57:22 UTC 2028
-------------------------------------
Next palindrome will be 929929
predicted to happen at this time:
Sun Dec 28 19:40:13 UTC 2025
-------------------------------------
Current mining epoch number is 460.
The next fortnight happens in block
929376 and probably around this time:
Thu Dec 25 03:08:24 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. .... 38c. b13e a56. 1f |
| 2. 3cf1 6876 869c 31e9 2f |
| 3. 9a31 6ec5 3a9c 4.35 3f |
'=== ==== ==== ==== ==== ==='
ak: 4131 85
................ ..|||...||......