Ethsign

Ethsign enables document versioning in a decentralized manner.

We provide a simple and decentralized alternative for DocuSign. Ethsign bridges Ethereum with Filecoin, where Ethereum powers our smart-contract and Filecoin/IPFS provides decentralized hot and cold file storage.

===== Workflow =====

• Ethsign allows a party to upload a document with pending signatures.
• All authorized parties are able to modify the document but can only do so one at a time, meaning each modification also requires the approval votes of all authorized parties before the modification becomes final and the next modification can take place.
• Modifications include changes made to the list of authorized parties(addition only), document text, adding signatures, removing signatures, and removing the document itself.
• Eventually, all parties vote to agree on a final version of the document, and the real-life contract is settled.

Overall, Ethsign offers similar functionality compared to centralized solutions such as DocuSign and Esign, but accomplishes their goals without needing to trust a third-party.

Ethsign is a web-app built with React and web3js.

The smart contract is written in Solidity and deployed via Truffle.

In-browser AES file encryption using CryptoJS.

Our IPFS and Filecoin APIs are powered by Powergate.

Three key pieces: DID(MetaMask), Smart contract(Ethereum), De-storage(Powergate).

Ethsign entirely runs inside the user's browser. We NEVER obtain any user information aside from what's public on the blockchain. The server only serves HTML+JS and does not receive any user data.