What happens if someone sends me more bitcoins than I set in my public key?

[starboss]

What happens if someone sends me more bitcoins than I set in my public key?

How can I create a public key that lasts forever, that I can get receive all differents values?

[GSpgh]

Not sure what you mean by "set in my public key" but there isn't really a way to set a limit. If someone sends you bitcoins (no matter how many) - you'll get them and as long as you have control of the private key - you'll be able to spend them.

You can use an address for as long as you want but for privacy reasons you should avoid doing that. Use a different address every time you receive coins. Most wallets generate new addresses effortlessly and seamlessly.

[mk4]

People should be able to send literally as much BTC as they want to your wallet's address. Or are you talking about invoices? Can you tell us what wallet app you're actually using?

[MFahad]

What happens if someone sends me more bitcoins than I set in my public key?

How can I create a public key that lasts forever, that I can get receive all differents values?

There is a lot of confusion in your questions. It seems that the terms like "public key" is not fully understand by you.
There is no way you can restrict yourself to receive certain amount of btc.  Anyone can send you any amount of bitcoins to your wallet address.

Creation of public key , i think you mean to say creation of wallet addresses ?  An address associated with your wallets remains associated to your wallet always. However some wallets changes the receiving address on every transaction but you can still send the funds to your previous address and you will receive it.

[OmegaStarScream]

I believe you're referring to wallets that allow you to make payment requests and generate a QR code containing the desired amount? If that's the case, then as said above, it doesn't matter. The QR code is just to facilitate the receiving procedure, the sender can still ignore that amount and send as much as he wants.

[DooMAD]

If they give you too much, you can just give them some back.  Just as if you were dealing with physical coins.  There's no way for you to prevent them handing you the wrong amount, but you can work out the right amount and refund the difference.

[Saint-loup]

What happens if someone sends me more bitcoins than I set in my public key?

How can I create a public key that lasts forever, that I can get receive all differents values?

The only limits existing are on the Lightning Network and you can't set them yourself.

You can create an address "that lasts forever, that I can get receive all differents values" by disabling the "Use change adresses" option in your software wallet.
When you enable it, the change of your utxos is sent to a new address of your wallet.

[stompix]

Really funny guy...

One of his posts (translated)

If Bitcoin is a currency whose transactions are anonymous ... If I have a virtual box and accept payments for Bitcoin for example, then how am I going to have the customer's data to send the product to them?

I have a feeling he has bought some coins from an atm or something and he thinks that addresses act like gift codes, that address is worth 84 satoshis and nothing more. Or there is something really wrong with google translate.

Anyhow straboss, as long as you own your wallet /privatekey and you've figured out how you lost the other ones you can buy how many bitcoins you want and store them in the same address. There is no bank limit in place.  

[Velkro]

What happens if someone sends me more bitcoins than I set in my public key?

How can I create a public key that lasts forever, that I can get receive all differents values?

You got something really wrong. It doesnt work like that.
Compare bitcoin address to bank account number. Do you set amount of $/euro in your bank account? No, you don't do this also in BTC address.
Your Bitcoin address will last forever and you can receive and send as much as you like just like in bank account (except you got bank account number for as long as you have agreement with bank)

[Bountyhonter]

What happens if someone sends me more bitcoins than I set in my public key?

If you are talking about if someone send more than the amount you requested for using the generated QR then you will receive all the funds to your wallet.

How can I create a public key that lasts forever, that I can get receive all differents values?

It depends on the wallet you use, some wallets changes your public key very often and some lets you use only one specific address.

[starboss]

Hello guys!

I wanted to get $ 100 from a Bitcoin customer, so I went into my exchange office, generated a wallet that asked me to set the amount I wanted to receive on it. Having generated it, also showed me the QR Code, and a counter of only 14 minutes to enter money in that wallet. The exchange house's information is that the value had to fall within just 14 minutes. Then I quickly sent the wallet to the customer. But then, my client told me that he would actually send me $ 150 because he wanted another job of mine. I was worried because at the exchange house, he gave me the option to generate the wallet by setting a specific amount, which I had already set to be $ 100 and not $ 150 as the customer said he was actually about to send me. Then I went to generate a new wallet. I already wanted to get the money straight from my exchange house to sell the bitcoins. However, I contacted the exchange office support, and they told me that they really need to send the amount in that 14 minute period. So, I did not like it, because if the person does not send at that time, I risk losing money ... I will generate wallet elsewhere now ...

[stompix]

~

You could have said that the first time, would have saved a lot of time and prevented me from a 101% wrong guess 

What you're generating there is an invoice, it just like those machines that don't give change back....
Depending on what the policy of the exchange you use is they might credit you with the full sum the guy deposited on it or they might hold the extra for themselves.
Far better and a bit easier (if you still want to have your money on an exchange) with no time pressure, go to your exchange dashboard and get your deposit address. Talk to the guy, find out how much 100$ or 150$ in bitcoin is and ask him to deposit the 0.0xx BTC on that address.

Again, we don't have a clue what exchange your using but at least the biggest part of the mess has been cleared out.

[Saint-loup]

Hello guys!

I wanted to get $ 100 from a Bitcoin customer, so I went into my exchange office, generated a wallet that asked me to set the amount I wanted to receive on it. Having generated it, also showed me the QR Code, and a counter of only 14 minutes to enter money in that wallet. The exchange house's information is that the value had to fall within just 14 minutes. Then I quickly sent the wallet to the customer. But then, my client told me that he would actually send me $ 150 because he wanted another job of mine. I was worried because at the exchange house, he gave me the option to generate the wallet by setting a specific amount, which I had already set to be $ 100 and not $ 150 as the customer said he was actually about to send me. Then I went to generate a new wallet. I already wanted to get the money straight from my exchange house to sell the bitcoins. However, I contacted the exchange office support, and they told me that they really need to send the amount in that 14 minute period. So, I did not like it, because if the person does not send at that time, I risk losing money ... I will generate wallet elsewhere now ...

You 're using Bitpay?
You've still access to the address or at list the Qr code of the deposit?

[crairezx20]

Hello guys!

I wanted to get $ 100 from a Bitcoin customer, so I went into my exchange office, generated a wallet that asked me to set the amount I wanted to receive on it. Having generated it, also showed me the QR Code, and a counter of only 14 minutes to enter money in that wallet. The exchange house's information is that the value had to fall within just 14 minutes. Then I quickly sent the wallet to the customer. But then, my client told me that he would actually send me $ 150 because he wanted another job of mine. I was worried because at the exchange house, he gave me the option to generate the wallet by setting a specific amount, which I had already set to be $ 100 and not $ 150 as the customer said he was actually about to send me. Then I went to generate a new wallet. I already wanted to get the money straight from my exchange house to sell the bitcoins. However, I contacted the exchange office support, and they told me that they really need to send the amount in that 14 minute period. So, I did not like it, because if the person does not send at that time, I risk losing money ... I will generate wallet elsewhere now ...

Use other wallets than you use right now which don't have countdown timer like they said it is invoice or request payment which you don't need to do if you want to receive BTC.

You can just use a wallet with BTC addresses. I suggest you to try Electrum wallet that you can download from electrum.org once you created a wallet there go to addresses tab and copy one of your BTC address and give that BTC address to your client to send BTC.
Use http://preev.com to calculate the $100 or $150 as a BTC amount then give that BTC amount to your client if how much they send in equal.

Public address or BTC address is enough to send BTC just give it to your client where he can send.

[marcotheminer]

Hello guys!

I wanted to get $ 100 from a Bitcoin customer, so I went into my exchange office, generated a wallet that asked me to set the amount I wanted to receive on it. Having generated it, also showed me the QR Code, and a counter of only 14 minutes to enter money in that wallet. The exchange house's information is that the value had to fall within just 14 minutes. Then I quickly sent the wallet to the customer. But then, my client told me that he would actually send me $ 150 because he wanted another job of mine. I was worried because at the exchange house, he gave me the option to generate the wallet by setting a specific amount, which I had already set to be $ 100 and not $ 150 as the customer said he was actually about to send me. Then I went to generate a new wallet. I already wanted to get the money straight from my exchange house to sell the bitcoins. However, I contacted the exchange office support, and they told me that they really need to send the amount in that 14 minute period. So, I did not like it, because if the person does not send at that time, I risk losing money ... I will generate wallet elsewhere now ...

If by "exchange office" you mean BitPay then you should contact them (or that office). If you generated the QR code within Electrum for example (see image: https://ibb.co/fGDGM5K) then you have nothing to worry about that is just to set the QR code to auto-fill the set amount, they can send any amount.

As long as that company is respectable, they will manage excess funds / return it to you or the customer. What site is it?

[starboss]

Hello guys, thanks a lot for all the tips and informations!


I am using Braziliex Exchange (brazil). But I will create a wallet as suggested here.