PECUNIA

we enable secure estate planning using ZK snarks and dynamic NFTs

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Inspiration

This is a continuation of the solution we made for the Polygon hackathon when a cryptocurrency owner dies and does not have the appropriate estate planning for the heirs.

We created this PECUNIA version especifically for the EVMOS chain and instead of static NFTs, we added Dynamic NFTs for the Identity of the Heirs. We also added the cancel function which enables the client to stop the transfer of funds

What it does

Pecunia provides clients the ability to ensure that their heirs will be able to get their share of the crypto and NFT once they are deceased using Dynamic NFTs and ZK Snarks

How we built it

React for Front end, ZK Snarks, dynamic NFTs (Identity) and deployed on Evmos Network.

The smart contracts are deployed on the EVM compatible Evmos network and written in solidity. Here is a description of 3 main smart contracts:

HeirToken — An ERC721 token that provides an additional security layer and proof that a heir is entitled to receive assets. PecuniaLock — This is main smart contract responsible for registering the owner, reserving amounts to heir and withdraw signature Verifier — verifies the ZK proof which is submitted by the heir/owner. This file is automatically generated by circom.

We have used Circom & snarkjs to develop the circuits and creating the zero knowledge proofs. This ZKP is generated using the password, without revealing it to the verfier. The Heir executes the withdraw Signature and proofs that he/she is the rightful heir. After the interval gets over the chainlink keepers transfer the amount to heirs.

Challenges we ran into

We were working on different timezones but we were able to come up with a good time to meet. We were also talking to potential users and had identified different iteration of the solution.

Accomplishments that we're proud of

We were able to create a working MVP which we deployed on Evmos network

What we learned

We learned implementing ZK Snarks, the Evmos blockchain, and dynamic NFTs

What's next for PECUNIA

  1. We are looking for mentors in the business development including accelerators that maybe interested in our solution.
  2. We are also looking feedback from experts in estate planning, contract audit and UX/UI.

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