Categories
Cryptocurrency Ethereum Mastering Development

Can not Open Ethereum Wallet on Window 10

I did trying install soft Ethereum wallet on windows 10, But I can’t open the program. It looks like the picture below. Help me pls, Thank everyone.

Categories
Cryptocurrency Ethereum Mastering Development

Can not Open Ethereum Wallet on Window 10

I did trying install soft Ethereum wallet on windows 10, But I can’t open the program. It looks like the picture below. Help me pls, Thank everyone.

Categories
Cryptocurrency Ethereum Mastering Development

Can not Open Ethereum Wallet on Window 10

I did trying install soft Ethereum wallet on windows 10, But I can’t open the program. It looks like the picture below. Help me pls, Thank everyone.

Categories
Bitcoin Cryptocurrency Mastering Development

Bitcoins stolen during transaction

guys! Recently, I transfered bitcoins from paxful wallet to bitcasino. Usually, it worked. Now, I cannot reach them, it looked to me like they were stuck on the way and I wanted to ask either side what happened. However, I realized an unusual activity, having traced the transaction by its ID. Usually, I wait for […]

Categories
Bitcoin Cryptocurrency Mastering Development

What do “support” and “resistance” mean?

I’m still very much a newbie to all this and would like to get some help.

Categories
Cryptocurrency Ethereum Mastering Development

In assembly… can’t get delegatecall to work

Delegatecall can be used in either solidity or assembly. In solidity, I can get it working with the following code: bytes memory payload = abi.encodeWithSignature ("get_value(uint16,uint16)", var1, var2); bool success; bytes memory result; (success, result) = my_contract.delegatecall (payload); The above code calls my_contract.get_value(var1, var2). How can I do the same thing in assembly? The function […]

Categories
Bitcoin Cryptocurrency Mastering Development

How safe is BitcoinCore since it is using owner’s passphrase?

When I want to create a wallet with BitcoinCore by going File->Create wallet, it asks me to choose a passphrase for it. Over the mouths exploring Bitcoin I learned that it is very unsafe to use custom passwords since they can be easily cracked (if I’m not mistaken, this type of wallet is called Brain […]

Categories
Bitcoin Cryptocurrency Mastering Development

Pay anonymous with bitcoin on “non bitcoin pages” that only support PayPal, credit card, Paysafecard etc

Can I pay anonymously with Bitcoin on "non bitcoin pages" that only support PayPal, credit card, etc..? So is there any legit service that pays with a credit card, etc.. for you if you pay bitcoin to that service? Some sites are also offering payment with Paysafecard, so is there a way to purchase Paysafecard […]

Categories
Cryptocurrency Ethereum Mastering Development

Como testar o contrato abstrato usando trufa?

Is it possible to test abstract contract using truffle? If yes, how I can to do it?

Categories
Cryptocurrency Ethereum Mastering Development

Geth node with RPC – accounts created automatically, always same addresses “0xffa4658ff14e486a3a57cc7163c153724c9d1904”

I am testing a private ethereum network using Geth 1.9.x. On all instances serving RPC (universally enabled CORS), a series of 3 accounts are created (always the same 3 addresses): 0xb50970d977fe010dfb6f6759bb5c832a8ef0017b 0xa33281e32fcf19ff284e0381bcfb426f5e7c0f58 0xffa4658ff14e486a3a57cc7163c153724c9d1904 If I delete the files in the keystore, new files are eventually created again, with the same account addresses, though. Relaunched new […]