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When dealing with normal on-chain transactions, we can generate a large number of bitcoin addresses that can then be stored separately and used to receive payments at a later date.

I am aware that a lightning node must be reachable when a sender wants send a payment. I am also aware that reusing a lightning transaction compromises both older and newer transactions.

That said, I would still like to know if it is technically possible to generate a large pool of lightning invoices (to store on a server) in the same way normal bitcoin addresses can be generated.

Tenders McChiken
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No; unlike a Bitcoin address, Lightning invoices have a built-in timestamp and an expiration time. They also have information, such as the amount of Bitcoin (and sometimes routing information), that changes in an unpredictable fashion.

ieatpizza
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  • Thanks to your answer, I found the following link which provides more information about how lightning invoices are generated: https://docs.lightning.engineering/the-lightning-network/lightning-overview/understanding-lightning-invoices and https://github.com/lightning/bolts/blob/master/11-payment-encoding.md – Tenders McChiken Jan 14 '22 at 15:55