@39 could you help me understand what value i get from savi…
@39 could you help me understand what value i get from saving lets say my personal pics or videos or such stuffs if that data can be pruned? The data dont need to be immutable in this case but accessible. maybe it doesnt make sense to save those files?
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what promotes me to save files on chain if i am not sure about its accessibility? And how would the economics play out and what incentives could the nodes have to save such files which has emotional values only to me and which cant be monetised furthur?
First things first, I think they would be accessible, but you'd be charged for that access.
More than anything though, you get to prove authenticity.
If everyone uses Bitcoin to authenticate important interactions, and deep fakes are forced into doing so too, there is a record of who uploaded the record, fake or otherwise.
That is extremely valuable, though people don't recognize that yet.
We are entering the time of deep fakes, when your image, your voice... Everything can be manipulated to make it look like you did something you haven't done.
Now, let's look at the same value for a family photo...
Think about how a future great, great grandchild of yours might go about finding family history.
They may have to pay to access a century old piece of data, but it will be there, and fully verifiable as they original data.
That's one side of things, anyways.
But the ability to use the chain to permanently reference things of any kind is also valuable, even if you don't have the data.
The file is always "on chain" once it's in a block in the longest chain.
But I think you mean if everyone else prunes it. In which case, yes, it's still verifiable. The hash of the transaction is in the Merkle tree, which is quite small.
The trouble comes in if you only have the data and not the transaction in full, because then you don't have all of the data that was hashed into the Merkle tree, so it won't be the same hash.
@39 does that mean, even if the file isnt onchain, i can validate that the file is original because i have the file and the HASH OF THE FILE is stored onchain as well? How else can i validate the authenticity if otherwise?
In short... The value is in the long term.
Let's say that you're writing a scientific paper. You can reference other work, data, etc. immutably with no worry that it might change, and with proof that it is unaltered from the upload date.
The only choice then is... Is it worth the greater fee to post all of the data, or just a hash of that data? And that is a legitimate question, but only the uploader has input in answering it. Not Ras Pi operators.
But this is where the "why not just hash the data and put that on chain" statements amuse me. Because that's exactly what happens in Bitcoin.
Except, the node operators (archival or miners,) get to choose if they host all of the data.