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35 views

Using a blockchain type system for different purposes [duplicate]

I was wondering, not that I really took the time to investigate much yet but.... Wouldn't it be possible, to do many different things, with the blockchain concept? Maybe i could build a "browser" ...
0
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1answer
36 views

Sending getblocks message but not getting inv message response

I am building my own bitcoin client, and I have most of the protocol working from https://en.bitcoin.it/wiki/Protocol_Specification. I successfully make a connection with the version and verack ...
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1answer
2k views

Need help! Initial sync not progressing, BTC sent already, + warning message

Please help! I look forward to your intelligent caring responses. Here is the situation: I'm trying to do the initial synchronizing of Bitcoin-QT, which hasn't progressed in 14 hours, and: - ...
2
votes
2answers
238 views

Using the bitcoin wallet PKI for message encryption

Is it possible for a message sender to encrypt a message string with a receiver's public wallet address, email this ciphertext to the receiver and then have the receiver decrypt the message using ...
2
votes
1answer
106 views

Ramifications of illegal content in transaction messages?

Would it be possible to make using Bitcoin illegal by posting child porn or similar highly illegal content in the message of a transaction? There are methods for having 'thin clients' that don't ...
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0answers
19 views

How do I sign and verify messages from the Bitcoin.qt client? [duplicate]

Can someone please explain, as if to a 5 year old, the actual process of signing and sending a message from the Bicoin-qt client? I assume verifying is exactly the same process. Thank you
3
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2answers
727 views

How does blockchain.info associate a message with an address? [duplicate]

I randomly encountered this address on blockchain.info: https://blockchain.info/address/1CzpppydnGN5dQN7iBnZbmm5RXreu7hrHW and at the top a message appears presumably describing the owner of the ...
2
votes
2answers
1k views

Is it possible to send a message to a bitcoin address? how?

Say I have an online store that accepts bitcoins and want people to be able to contact me through my wallet, because that is ultimately the entity involved in an hypothetical trade. Can that be done? ...
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3answers
834 views

Can I send message inside the transactions script?

I would like to send transactions with messages as described in the wiki. In Transaction with slightly changed script is never relayed, someone answered that non-standard transactions are not relaid ...
3
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2answers
489 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 ...
5
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1answer
767 views

What method does My Wallet use to encode messages in the blockchain?

What kind of protocol does My Wallet use?
4
votes
1answer
97 views

How does Bitcoin decide which Alert messages to forward?

The Bitcoin protocol lists an Alert message that in the Standard Client is displayed to all users. How does the Standard Client decide which messages to forward and display, and which to ignore? Does ...
3
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2answers
411 views

In which Block was Len Sassaman memorialised?

It has been mentioned a couple times here and there that Len Sassaman was memorialised somewhere in the Block Chain. I was able to find a dump of of the tribute to him, but I can't seem to find where ...