Proof of Existence verification flow

[ba1ciu]

Based on designs: https://xd.adobe.com/view/0b92ead2-97b8-4597-96ab-fc3f2326fa60-5ec1/screen/52f77f5d-54cd-47fe-956e-21efb46f8775/

Example of using EmpowerJS to verify proof:

const { createRPCQueryClient } = empowerchain.ClientFactory;
const client = await createRPCQueryClient({ rpcEndpoint: RPC_URL });
const proof = await client.empowerchain.proofofexistence.proof({ hash: "hash" });