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Decentralized platform for photo sales and photo sharing, built on Ethereum

hack.ether.camp

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Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#21

Post by throwaway049 »

tonyedgecombe wrote: post #20
throwaway049 wrote: post #12

Earlier quoted context omitted.

I am assuming they hash the RAW file. Since JPEGs contain less information than RAW I don't think it is possible to get from JPEG to RAW to hash value matching the one from the original RAW.

But a pirate wouldn't need the original raw, just one that happens to produce the same jpeg.

The intent is to prove ownership, not to prevent piracy. You can't produce the 'owner' hash with your reconstructed RAW.

I note they also only display low res until you buy a high quality version. That's what I do too. If someone wants to save/share my low res images its no problem. If they want something magazine or billboard res (ie commercial) they have to come to me.

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#22

Post by sharemywin »

> Photos for sale are identified as rightfully owned by having RAW file details published to the blockchain (actual High Res image is not stored on chain)

If it's on the block chain and everyone has a copy can't I just copy it directly from the blockchain?

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#23

Post by throwthisthing »

jheriko wrote: post #18
draugadrotten wrote: post #11

Earlier quoted context omitted.

It is good to design systems with the assumption that most users will use them as intended. There will always be misuse, but that can be adressed later if the system is successful. Compare airbnb, uber, dropbox. They all have very bad use cases. The systems were designed for the vast majority of users being lawful and for the most part it works.

uber was never designed to be lawful, its the entire issue i have with it, it was designed with ignorance of the law and has gotten away with it through utility and popularity...

not universal and needs nuance for sure, but...if it's giving a lot of utility to a lot of people, then maybe there's something probably a bit wrong with the law in the first place. So there needs to be some give.

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#24

Post by bfuller »

jheriko wrote: post #18
draugadrotten wrote: post #11

Earlier quoted context omitted.

It is good to design systems with the assumption that most users will use them as intended. There will always be misuse, but that can be adressed later if the system is successful. Compare airbnb, uber, dropbox. They all have very bad use cases. The systems were designed for the vast majority of users being lawful and for the most part it works.

uber was never designed to be lawful, its the entire issue i have with it, it was designed with ignorance of the law and has gotten away with it through utility and popularity...

and massive amounts of money spent on lawyers

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#26

Post by maxedgeronimo »

sharemywin wrote: post #22

> Photos for sale are identified as rightfully owned by having RAW file details published to the blockchain (actual High Res image is not stored on chain) If it's on the block chain and everyone has a copy can't I just copy it directly from the blockchain?

Hi sharemywin, no the photo itself is not on the blockchain, only the details about the photo & timestamp. the photo served on the website is not the full high res image. That is stored off chain

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#27

Post by aqme28 »

sharemywin wrote: post #22

> Photos for sale are identified as rightfully owned by having RAW file details published to the blockchain (actual High Res image is not stored on chain) If it's on the block chain and everyone has a copy can't I just copy it directly from the blockchain?

Maybe it's just a hash of the raw? It says the image is not itself stored on the chain.

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#28

Post by maxedgeronimo »

tw04 wrote: post #15
greenspot wrote: post #7

> Photos for sale are identified as rightfully owned by having RAW file details published to the blockchain (actual High Res image is not stored on chain) Does anyone have a clue, how this should work? Eg, if I just 'steal' a pic and change slightly its brightness, color curve, crop, blurriness, etc. will the system still be able to identify the original? Otherwise great idea.

I would imagine you're buying a copy of the photo in non-raw format, whether it be jpeg/png/whatever. If you don't have a RAW copy to post to the blockchain, it's impossible to steal it.

Hi tw04, yes thats right, though it will depend also on the terms of the sale / license given by the seller, which in some cases may give the full rights to the image including the RAW file in some cases. All of which is under the discretion of the seller. In the case that they did give rights to the RAW file, then that user is the only one who gets the RAW file data, its passed to them via an ethereum escrow contract

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#29

Post by maxedgeronimo »

throwaway049 wrote: post #21
tonyedgecombe wrote: post #20

Earlier quoted context omitted.

But a pirate wouldn't need the original raw, just one that happens to produce the same jpeg.

The intent is to prove ownership, not to prevent piracy. You can't produce the 'owner' hash with your reconstructed RAW. I note they also only display low res until you buy a high quality version. That's what I do too. If someone wants to save/share my low res images its no problem. If they want something magazine or billboard res (ie commercial) they have to come to me.

Hi throwaway049, yes thats right, both your comments spot on. The main goal is to prove ownership to support legal sale of image. and the real target for sales are buyers that need top quality high res images. Someone mentioned another idea for combatting pircay, eg identifying photos on the web that may be copies, and that is an interesting service that would be way down the road if at all.

Re: Decentralized platform for photo sales and photo sharing, built on Ethereum

#30

Post by joosters »

Why should people trust that the images are 'identified as rightfully owned by having RAW file details published to the blockchain' ? Who says that the data on the blockchain is correct, and what stops someone from registering other people's photos under their own name?
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