Questions on: verification

Each user of bitcoin need have at least one address to receive coins. I just created an address 18TGt8oGgLzkCpjxMbiRfvbDo9NqGisopp, which due to the properties of how it is generated, is presumed to be unique. If someone sends me any bitcoin they wil
Do you own the address specified by the seller (as in, did you provide them the address)? If so, the seller probably wants you to confirm "yes, the address is correct" or something like that. If you don't own the address, I think you should ask the s
With the Bitcoin. org client, the node accepts a block only after none of the verification steps fail. Each block in the block*chain* is linked to a prior block with a reference to that prior block's hash
Here are a few I'd recommend: Or play with pybitcointools at the command line (not online): $ git clone https://github. com/vbuterin/pybitcointools. git $ cd pybitcointools $ python >>> from bitcoin import * >>> sk = random_key() #
I'm trying to get a grasp on which items the network is responsible for validating / enforcing. If I understand correctly, when a new block is received, the recipient needs to verify the following: 1) the block hash - i. e
TL;DR: Each block only needs to be verified once. Upon receiving a new block, only the reference to the parent and the validity of the new block need to be checked. When one gets started with Bitcoin, the client or mining software will download and v
What prevents man-in-the-middle from altering web traffic and fix hash code that I see to match malicious downloaded file ? Those sites often do not provide SSL, so capturing and fixing HTTP traffic is easy, all it takes is to work with my ISP or som
NimbleCoin is a new cryptocurrency I’ll be hopefully launching soon. One of its nice features is that it uses the FastBlock5 protocol (a 5 seconds block interval) to achieve near instant payments. Because NimbleCoin also implements merged mining, eac
While the debate about Bitcoin rages on, researchers have been quietly examining the technology that underpins this and other digital currencies. This is the realm of the blockchain – a protocol for exchanging value over the internet without an inter