Content verification is a two step process

Step one: Add content and sign the IPFS hash
Step two: Look up IPFS hash to verify source account
Look up IFPS hash to verify content ownership:
Unverified: QmQqzMTavQgT4f4T5v6PWBp7XNKtoPmC9jvn12WPT3gkSE
Verified: QmUiAxDHZMJSVM7umzAZ1ojJjZmxWGWUffyiG1v8TC7mob
This application is built on the Flow blockchain using fcl-js to interact with the blockchain. It is a fully frontend application. It allows users to prove proof of ownership of their assert on IPFS (InterPlanetary File System). Ownership can be publicly verified by comparing the signature retrieved from the blockchain to the accompanying account address.