Blockchain.info has a service to list all the transactions which involve a bitcoin addresses generated using a given xpub.How does this work?

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As per my understanding, there could be infinite addresses which can be generated, so how does this work?

Link: https://blockchain.info/xpub/xpub6CUGRUonZSQ4TWtTMmzXdrXDtypWKiKrhko4egpiMZbpiaQL2jkwSB1icqYh2cfDfVxdx4df189oLKnC5fSwqPfgyP3hooxujYzAu3fDVmz

r00t

Posted 2017-09-13T11:35:59.157

Reputation: 3

Answers

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BIP-44 specifies a limit to how a wallet should look for public keys. The implementation should consider there's no address with funds beyond 20 addresses without funds.

alcio

Posted 2017-09-13T11:35:59.157

Reputation: 1 164