[Social Cipher] Profile.io proof personal information with NFT (age-verification)

README.md

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+# Profile.io
+test
+
 # Alpha Build 2
 
 Tracking issues and projects for Alpha Build 2 grants program.

profile.io/README.md

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+# Profile.io: privacy preserving identity, nationality and age verification 
+
+Using a profile.io user's indentity verification KYC results to prove user's adult verification and/or nationality without revealing personal data by using ~~Aztec Connect~~ Noir circuit ZKP. Scoping service for third parties to verify such information privately, either through profile.io/verify or their own user flows (eg. exploring potentially using Frames.js).
+
+
+## Challenge Selection
+
+- [ ] ZKEmail Guardian
+- [x] Social Cipher
+
+**Note**: You can change which challenges you've selected during the competition if you'd like. You are not bound by your choices or descriptions entered during the one week check-in.
+
+## Team information
+
+[Profile.io](https://www.profile.io/)
+
+## Technical Approach
+
+We'd like to use Aztec ZKP for proving adult verification (or any other user info) on our app.
+~~We have already smart contract that mints NFTs on Polygon mainnet~~ 
+
+The plan is to use ZKP and Aztec Note when user inputs his/her identity including age then the user can use it when the age verification is required without revealing details.
+
+Here is the user flow:
+1. In FE (frontend), a user inputs his birthdate on FE (ex: 20/04/1995) 
+1. The FE calls Aztec contract to mint a NFT with the Note which has his birthdate (at this step, PXE creates ZKP when a private function is called on the Aztec contract if I am understood properly)
+1. Now the user owns the age-NFT
+1. Another user (verifier) wants to verify if the user is an adult or not.
+1. The user doesn't want to reveal his exact age but can prove whether he is adult or not by using ZKP (or Note?)
+1. The FE has a "verify" button and when verifier clicks that button -> Calling Aztec contract to process target user's age verification -> FE shows whether the user is an adult or not on the UI.
+
+
+## Some technical questions
+a. At above step 2, the created Note is an actual ZKP? I am confused the relation between Note and ZKP?
+
+b. At above step 6, can Aztec contract retrieve age-NFT data without the NFT owner's permission? Do I need the "Witness"?
+
+c. At above step 6, if Aztec contract can retrieve age-NFT data (birthdate), can the Aztec contract process calculation of the Note data? For example, `isUserAdult(note)`, `isUserOver50(note)`, `isUserOver70(note)`.
+
+## Expected Outcomes
+Providing a quick age verification feature. 
+
+## Lessons Learned (For Submission)
+
+- What are the most important takeaways from your project?
+- Are there any patterns or best practices that you've learned that would be useful for other projects?
+- Highlight reusable code patterns, key code snippets, and best practices - what are some of the ‘lego bricks’ you’ve built, and how could someone else best use them?
+
+## Project Links (For Submission)
+
+Please provide links to any relevant documentation, code, or other resources that you've used in your project.
+
+## Video Demo (For Submission)
+
+Please provide a link to a video demo of your project. The demo should be no longer than 5 minutes and should include a brief intro to your team and your project.