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Is a Lightning URL Like an Email Address?
137 sats \ 5 comments \ @spiderman 16 Jul bitcoin_beginners
So, I made an account on coin os and got what looks like an email address <username>@coinos.io.
So, is that a lightning URL, that anyone (even those without a coinos account) can send me sats from their own wallets? Or does that serve a different purpose? I am not exactly clear how to use that wallet. Any website that asks for lightning url to pay/refund me, I can post that account name there and I should be able to get my sats?
Also, I read that sending lightning requires a predetermined amount, as in, the receiver has to key in the amount to generate the address and must give it to the sender. Is my understanding right? But in that sense, my coinos account violates that?
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92 sats \ 2 replies \ @ek 16 Jul
Any website that asks for lightning url to pay/refund me, I can post that account name there and I should be able to get my sats?
Yes, for example SN, see /wallets
Also, I read that sending lightning requires a predetermined amount, as in, the receiver has to key in the amount to generate the address and must give it to the sender. Is my understanding right? But in that sense, my coinos account violates that?
A lightning address is a way to request an invoice from a lightning node. Instead of you generating an invoice from your node for the recipient, you give the recipient your lightning address so they can generate an invoice from your node themselves.
Read more here: https://lightningaddress.com/
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0 sats \ 1 reply \ @spiderman OP 16 Jul
But I also read some examples of a lightning url which are lnurl followed by a long incomprehensible string, not a neat email address like thing as my example above.
Are these two similar? Or am I mixing up lightning url with lightning address? Which one to use for payment? Any tutorial describing the difference between these?
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0 sats \ 0 replies \ @ek 16 Jul
Yes, lightning addresses are built on top of LNURL. Lightning addresses are a user-friendly way to request invoices, instead of lnurl followed by a long incomprehensible string.
Reading this should help you understand:
Paying to static internet identifiers
With LNURL Pay, developers went a step further and proposed a method of paying to an email-like address, like satoshi@voltage.com. Instead of making a request for an URL encoded in an invoice, the wallet makes a request to voltage.com/.well-known/lnurlp/satoshi. The server then responds with the same information and instructions defined in LNURL Pay request spec and the flow continues as this was just a regular LNURL Pay request. In essence, the only thing that changed is the initial URL.
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0 sats \ 1 reply \ @bitcoingecko 16 Jul
You are correct. With a lightning address, anyone can send you any amount. You don't need an invoice for a specific amount
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0 sats \ 0 replies \ @WeAreAllSatoshi 16 Jul
Under the hood there is a specific invoice generated, but it’s facilitated by the sender and your LN address provider, no manual intervention needed by the receiver
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