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Results tagged with blockchain
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user 8717
The journal of all confirmed Bitcoin transactions. The blockchain consists of a linked sequence of blocks and each block contains a list of transactions.—Please use [blockchain.info] for the eponymous UK-based company.
2
votes
Why can't we make the Bitcoin software start the blockchain from the beginning?
And how exactly would the network agree on the last included block in order to spawn your new blockchain? That would be kind of complicated.
In my opinion Merkle tree is already fixing the problem. … Remember that only miners actually need all of the blockchain data. Clients don't. …
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0
votes
Clean blockchain?
Bitcoin's blockchain solves the double-spending problem with the proof-of-work. They key of this is that nodes only accept the longest blockchain, or the one with most work put into it, as valid. … If the blockchain were cut every 4 weeks or so, you would have many short chains. How would you reach consensus in the network on which chain to use? …
- 5,242
4
votes
Why doesn't the Bitcoin blockchain truncate past data?
The idea of Bitcoin is that you can obtain the current state of the network without having to trust anyone. You essentially rely on the fact that the state that has most work put into it, is the valid …
- 5,242
1
vote
Blockchain parser for transaction level details
I guess you're looking for a blockchain explorer. Insight, by BitPay, works pretty well and is open-source: https://github.com/bitpay/insight …
- 5,242
3
votes
Are there any Web Crawlers for Bitcoin addresses?
Well Google, or any other search-engine, already crawls the Web for you. Probably just Googling an address will lead you to the Website where its owner published it, and it'll allow you to find other …
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4
votes
Can blockchain size become a blocker for bitcoin adoption?
So no, the increasing size of the blockchain is not really a blocker for Bitcoin's adoption because only miners would need the entire blockchain data. …
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2
votes
Accepted
Will old accepted blocks ever be removed?
If you keep a partial version of the blockchain, how do you verify that it is consistent with the entire blockchain? … the entire blockchain for yourself. …
- 5,242
0
votes
Is it time to move data storage (of things like music, images, virus definitions) out of the...
A transaction can only store a very little amount of data, not enough for music or images. What can be stored is the hash of a music/image file, which is of predictable size, and in my opinion does no …
- 5,242
2
votes
Accepted
What is the difference between a wallet and paired keys?
Yes. The cloud you're referring to is actually the block chain. A bitcoin wallet has various different meanings, such as web-wallet, brain wallet, or various others, but in my opinion the best represe …
- 5,242
3
votes
What happens if I fork an older block chain and rejoin the network later?
How can it be longer if you don't have more computing power than the entire network? Remember that the network converges on the chain that was hardest to generate, not the one with more blocks.
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1
vote
Using Bitcoin or another Altcoin for Decentralized Database Storage
Yes there have been some proposed ideas such as FileCoin, Storj and probably others. However, I'm not sure how well these systems work because there would need to be a way to prove to other peers that …
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5
votes
Accepted
Blockchain over 36GB and causing disk space issues
But if you want to be a full node (perhaps you're mining or you want to verify transactions yourself), then you need to download the entire blockchain which is almost 35GB large: https://blockchain.info …
- 5,242
4
votes
How is a blockchain split resolved?
This is explained in the Bitcoin paper:
Nodes always consider the longest chain to be the correct one and will
keep working on extending it. If two nodes broadcast different
versions of the ne …
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1
vote
How to check BTC transaction when buying face to face?
Does your cellphone have a web browser? There's many good web wallets (such as https://greenaddress.it/en/) which would allow you to simply open it in a web browser. If you don't have QR code capabili …
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