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Bitcoin => Bitcoin Technical Support => Topic started by: talhamalik883 on April 05, 2018, 05:50:42 AM



Title: Bitcoin extended public key transacaction listening
Post by: talhamalik883 on April 05, 2018, 05:50:42 AM
Hey there. Guys i want to know about the extended public key transaction listening. I have a XPUB(Extended Public Key) from which i have generated a huge amount of address. Now what i want to do is to get transaction against generated address. BlockChain.info is doing this thing, i don't want to use that instead i want to know the way how they are doing this. Guys any help regarding this is appreciatable. Thanks.


Title: Re: Bitcoin extended public key transacaction listening
Post by: achow101 on April 05, 2018, 06:02:29 AM
They get it by deriving a lot of addresses from the xpub and then looking up the transactions related to those addresses. They follow the BIP 32 (https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki) specification for deriving public keys from a parent public key.