jnayak1 / ember-peer-review-ethereum Goto Github PK

Files cannot be stored directly on the ethereum blockchain, as it would be too costly. We need to find a way to store files such that they will always be accessible forever at a static address. Also, we need to be able to verify that the file has not changed.
Through hashing the file, we can verify that the file has not changed. We can then use that hash as the static address. However we still need to find a place to store the file so that it will always be accessible.

• IPFS
• BitTorrent
  • BitTorrent for Science

No matter what I pass in as the parameter to the PeerReview constructor, the filehash is always initialized to 0x

Right now, when I create a PeerReview contract and pass in an address as a parameter, the journal address in the contract always gets initialized to 0x0000.... no matter what address I put as a parameter to the constructor.

One issue that I am having is with keeping track of the addresses of contracts after they have been created. Can I find a contract again if I don't have the address? What information do I need?

Possible Solutions:

• web3js filter
  • Filter ethereum blockchain for stuff that meets certain criteria
• POST to an API on callback function of contract deployment
  • Not DAPPy, but very easy to implement
• A master contract creates the PeerReview contract instead of the user
  • Call a function on a master contract that creates a PeerReview contract
  • Master contract keeps track of the PeerReview contracts it has created
  • Methods on contract that allow client to filter for PeerReview contracts of interest (like those from a specific journal, or only those that they are a part of) <- this would be expensive. We can just do this client side or on an api.
  • Client can then filter for Events on the PeerReview contracts of interest
• Contract that filters Ethereum blockchain and caches results?