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Perpetual futures markets on exchanges commonly allow leveraged trades. What is the difference between buying 2 units at 1X leverage vs 1 unit at 2X leverage? Are these equivelent?

I started reindexing yesterday and I’ve read around online. Some people claim it only takes a few hours, others say it takes a few days. How can I verify when it is done?

Is a 24 words seed more secure than 12 words in terms of brute forcing the private key?

From the following answer I read that a private key is always "just" 128bit even when derived from 24 words. So it doesn’t matter is that correct?

Using more than a 12 word mnemonic phrase

here it says "ECDSA secp256k1 only have 128 bit strength" but the question linked is about if passphrase improves security.

12 or 24 words for menomonic?

Or is it recommended to use 24 words over 12 words in regards to brute forcing?

While using bitcoin-qt I get this message when trying sweep funds. Wallet currently has 2 utxos. There’s no debug logs that I can see relating to this. Was just trying to do a send all to an address with the default subtracting fee option.

While using bitcoin-cli and running bitcoin-cli listunspent I see:

[
  {
    "txid": "TX_1",
    "vout": x,
    "address": "ADDR_1",
    "label": "xxx1",
    "scriptPubKey": "44_LEGNTH_HEX_STRING",
    "amount": xxxxxx.xxxxxx,
    "confirmations": xxx,
    "spendable": true,
    "solvable": true,
    "desc": "wpkh([FINGERPRINT/84'/0'/0'/0/0]KEY)#CHECKSUM1",
    "parent_descs": [
      "wpkh(xpub_key/84'/0'/0'/0/*)#CHECKSUM-parent"
    ],
    "safe": true
  },
  {
    "txid": "TX_2",
    "vout": xx,
    "address": "ADDR_2",
    "label": "xxx2",
    "scriptPubKey": "68_LENGTH_HEX_STRING",
    "amount": xxxxxx.xxxxxx,
    "confirmations": xxxx,
    "spendable": true,
    "solvable": true,
    "desc": "tr([FINGERPRINT2]KEY2)#CHECKSUM2",
    "parent_descs": [
      "tr(KEY2)#CHECKSUM2"
    ],
    "safe": true
  }
]

Output sanitized

Is this a bug that may warrant a Github issue? or am I doing something wrong / unsupported? What else can I provide or do to understand what is happening?

I previously was trying to construct this transaction with bitcoin-cli but was also failing.

Previous discussion: Taproot UTXO raw tx help – "error": "Witness program was passed an empty witness"

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Which exchanges or wallets offer the option to open channels with them at the time of writing (June 2023)?

Of those that do are there any particular requirements (e.g. minimum channel capacity, uptime requirement)?

I understand that I could speculatively try Lightning nodes from 1ML or Amboss but I’m capital and time constrained.

Also any exchanges or wallets offer the option to open signet channels with them at the time of writing?

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Context:
I have a bitcoin core node(v.24), and using bitcoinrpc library.

So, when I am running the getrawtransaction() function, sometimes the vout doesn’t have the key "address", and the key "desc" looks like pk(….)#…. .

How can I figure out the id of the destiny address ? I already checked in two bitcoin explorers, that the output address of this transaction: "9b0fc92260312ce44e74ef369f5c66bbb85848f2eddd5a7a1cde251e54ccfdd5" it is : 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX

In addition, I also tried to decode the hex valur of the vout, but there is no address key. Therefore, there is a p2sh key with and value that looks like an address id: 3ARTFmbLhbpY4BAhV6Ukvb9ULa6eHawAWW

What it is the way to obtain the right destiny address?

Example:

blockid: 2
txid: 9b0fc92260312ce44e74ef369f5c66bbb85848f2eddd5a7a1cde251e54ccfdd5

Output of getrawtransaction(txid,1):

{'txid': '9b0fc92260312ce44e74ef369f5c66bbb85848f2eddd5a7a1cde251e54ccfdd5',
 'hash': '9b0fc92260312ce44e74ef369f5c66bbb85848f2eddd5a7a1cde251e54ccfdd5',
 'version': 1,
 'size': 134,
 'vsize': 134,
 'weight': 536,
 'locktime': 0,
 'vin': [{'coinbase': '04ffff001d010b', 'sequence': 4294967295}],
 'vout': [{'value': Decimal('50.00000000'),
   'n': 0,
   'scriptPubKey': {'asm': '047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77 OP_CHECKSIG',
    'desc': 'pk(047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77)#rgrfa75n',
    'hex': '41047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77ac',
    'type': 'pubkey'}}],
 'hex': '01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0704ffff001d010bffffffff0100f2052a010000004341047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77ac00000000',
 'blockhash': '000000006a625f06636b8bb6ac7b960a8d03705d1ace08b1a19da3fdcc99ddbd',
 'confirmations': 792949,
 'time': 1231469744,
 'blocktime': 1231469744}


vout_hex = '41047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77ac'

Ouput of decodescript("vout_hex"):


{'asm': '047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77 OP_CHECKSIG',
 'desc': 'pk(047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77)#rgrfa75n',
 'type': 'pubkey',
 'p2sh': '3ARTFmbLhbpY4BAhV6Ukvb9ULa6eHawAWW'}

All in all, what should I do to get the right output address: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX?

How do I Export/dump the settings of bitcoin into a .conf file?
I know I can review most of them via bitcoin-qt GUI.
But I want the text file of the exported settings.

on the 19th of March I made a transaction. but it took too long and the exchange’s temporary wallet account was closed. so coins were send to nowhere. coins were written off but they didn’n come in my card account. How can I get my money?
Here is the information:
Статус: 5848 подтверждений
Дата: 19.03.2023 12:16
Кому: 1BEbVKhbbA6LUN5Qgnxb9SrCuDAaf1ZnfW
Дебет: -0.04750585 BTC
Комиссия за транзакцию: -0.00000113 BTC
Сумма нетто: -0.04750698 BTC
Идентификатор транзакции: f77a53d47c2cf94c998050580c95e9e341059d31227d7d5e3a01e02a66b31eb9
Общий размер транзакции: 194 bytes
Виртуальный размер транзакции: 113 bytes
Индекс выхода: 0