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1answer
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Is the mnemonic passphrase enough to backup with deterministic wallets?

I'm using a greenaddress.it wallet, but assume this will be the same for all deterministic wallets. (If not, please correct me!) Since the first and all further bitcoin addresses my wallet will ever ...
3
votes
3answers
108 views

What if you wanted to decrease anonymity?

My idea is to be able to build "credit" for an individual. Lenders of BTC could just use a service to check the "credit score" of a certain address of a borrower. The borrower would have to spend a ...
3
votes
1answer
156 views

Double spending from “green addresses” & mitigation

Suppose a user pays for a service (service1) using a "green address" (0 confirmations required) and service1 needs to immediately respend it using it's own green address How many blocks should the ...
3
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2answers
579 views

Does the public key associated with an address become part of the public record after it has been used to spend?

Since bitcoin addresses are hashes of public keys and not public keys as such, if one wanted to craft a message that could be decrypted by the generator of an address, that can't be done just with an ...
4
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1answer
157 views

How to implement a green address in Bitcoind?

There are a few websites that use green addresses, but how can one go about implementing it using the standard Bitcoin API?
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3answers
901 views

What's the best way for a website to detect payments from green addresses?

Does any proven third party code exist for this? Edit* To be more specific, what I haven't been able to find out is how to get the sender's bitcoin address when receiving a transaction. As far as ...