GC Blockchain Codefest

Blockchain Notary

One common used service for sensitive documents it's the need of time-stamp and proof of ownership without assistance. A system than can file a document and have a time-linked historical reference to it can be a solution for this need without human intervention. Document can include government forms, a commercial contract, a region-marked photograph or piece of artwork. Primary benefit is that documents are backed on the blockchain in perpetuity. This means that the document’s footprint exists in cyberspace even if the physical copy vanishes.

The Goal

Develop a web system to upload a document of a max given size and have a receipt of the proof of this act. A time-stamp and a hash (cryptographic representation of the document) must be included.

The system will also provide a way to prove that the file has been notarized or not. This solution must be designed / implemented using Blockchain Technology thats not include this function as part of it's own services.