Can we keep any information in the Blockchain? - page 2.

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legendary

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Quote from: themystick on October 09, 2017, 05:41:22 PM

Hi guys!
I have a question for you. I'm thinking about that Can we keep any information in the blockchain? So I mean, photos, voice records, weather report, locations etc. can keep in the blockchain? If It can, Can we categorise and handle this information in the blockchain? Thanks!

Which blockchain ? Current one ? No.You want to write your own chain,cool.You can code it however you like provided it keeps the core concepts of blockchain intact.Also I don't understand why would you want to keep private videos,photos,locations on a public chain ? Breach of privacy ? That's not what a blockchain is suppose to be.

Maybe you should describe your idea in brief and I would know what you actually trying to do.

HeRetiK

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Quote from: themystick on October 12, 2017, 01:32:19 PM

Quote from: CryptoSpark on October 12, 2017, 11:17:13 AM

You could but it's usually not the most effient place to store large amounts of data. Blockchains strength is its immutable nature which makes it ideal as a ledger but considering the cost and bandwidth for mirroring large chunks of data to ever node it isn't ideal.

You are right but If these datas are very very large amount, I mean "Big data", I think this methode can more usefull than keeping in the database ha?

What would you expect to be the benefit of storing media files and other binary data on the Bitcoin blockchain -- or, any blockchain for that matter?

If it's the distributed aspect that you are after, there are other, more efficient ways to do so. IPFs has already been mentioned and is not the only one of its kind. Storj and MaidSafe are similar projects. If you're looking for something that is proven and widely used you need to look no farther than BitTorrent.

themystick

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Quote from: CryptoSpark on October 12, 2017, 11:17:13 AM

You could but it's usually not the most effient place to store large amounts of data. Blockchains strength is its immutable nature which makes it ideal as a ledger but considering the cost and bandwidth for mirroring large chunks of data to ever node it isn't ideal.

You are right but If these datas are very very large amount, I mean "Big data", I think this methode can more usefull than keeping in the database ha?

CryptoSpark

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You could but it's usually not the most effient place to store large amounts of data. Blockchains strength is its immutable nature which makes it ideal as a ledger but considering the cost and bandwidth for mirroring large chunks of data to ever node it isn't ideal.

themystick

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Quote from: hakuna on October 10, 2017, 04:36:28 PM

Is your question about legal issues or technical ones?
As daserpent wrote, the blockchain is public and immutable, hence you should pay attention not to store private information.

From the technical point of view, the blockchain is replicated on each network node. That means that, in order to store big files, like pictures or audio files, you will need to pay a high fee, as your file will be hosted on all the network nodes.

Some workarounds exist, e.g., IPFS, https://ipfs.io/. In this view, you could store a file on a peer-to-peer network, and save on the blockchain only the hash (the "summary") of the file, e.g. to guarantee the existence of the file at a given time.

Hope this could answer to your question.

Thank you for your great response. I want to build my own blockchain for my project. If I can do this, I think it can be great work for me. Thank you again!

hakuna

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Is your question about legal issues or technical ones?
As daserpent wrote, the blockchain is public and immutable, hence you should pay attention not to store private information.

From the technical point of view, the blockchain is replicated on each network node. That means that, in order to store big files, like pictures or audio files, you will need to pay a high fee, as your file will be hosted on all the network nodes.

Some workarounds exist, e.g., IPFS, https://ipfs.io/. In this view, you could store a file on a peer-to-peer network, and save on the blockchain only the hash (the "summary") of the file, e.g. to guarantee the existence of the file at a given time.

Hope this could answer to your question.

daserpent

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The way I see it, blockchain is only a way to ensure no data is tampered with without the acknowledgement of all users.

So, its a public ledger - a public book of all transactions or changes.

Which would mean, if suppose I make a company that organises all land-owners records in digital format, and make a transaction in the blockchain, it would not tamperable until all of the users of the blockchain conscent to the change.

So, to change any land-record, I would need approval of all or majority of users to make the change. Or else, its not going to be changed.

Could be wrong here, if so, someone please explain.

themystick

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Hi guys!
I have a question for you. I'm thinking about that Can we keep any information in the blockchain? So I mean, photos, voice records, weather report, locations etc. can keep in the blockchain? If It can, Can we categorise and handle this information in the blockchain? Thanks!

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