Transactions – How are bitcoins programmatically sent without requiring a local copy of the blockchain?

I'm pretty new to Bitcoin development! I have seen the documentation above RPC Commands that are available if you have a local copy of the blockchain.

But I would like to know if it is possible to create and send send Transactions in the Bitcoin network without a local copy of the blockchain?

I use Java, but I try to avoid Bitcoinj. Currently I am trying to understand how everything works under the hood. I can add new addresses with the associated private keys (raw and WIFFormats). They work well!

With the API provided by blockchain.com, I can get information about these addresses and see if they have received any coins.

The only missing part for me is to find a way to be programmatic send Some coins from these addresses to other addresses, without a local copy of the blockchain (and with RPC calls on it).

Aha blockchain.com Also provides a wallet API. However, correct me if I'm wrong by using it she Control the private keys, right? I would prefer to send coins by creating and signing the transactions locally and then broadcast them yourself … without local blockchain.

Is it possible? What are the options?

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Cheers, … | Read the rest of https://www.webhostingtalk.com/showthread.php?t=1781240&goto=newpost

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Many exchanges have a payout fee (such as Poloniex which charges customers on average 0.0005 BTC) and these fees are mainly related to network costs.

Should I usually consider that the net value of a cryptocurrency reference is amount - withdrawal fee - network fee or only amount - (withdrawal fee OR network fees) If an exchange does not explicitly have these fees?

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