# Self Protocol Workshop I Ayman Mohammed

- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2025-11-09
- Duration: 17:08
- Topics: Self Protocol, decentralized identity, zero-knowledge proofs, ZK verification, Groth16, Circom, privacy-preserving KYC, selective disclosure, nullifier, onchain identity, Merkle tree, Aadhaar verification, biometric IDs, OFAC compliance, TEE proofs, zk-SNARKs, self-verification root, Solidity SDK, QR code authentication, hackathon bounty, proof-of-humanity, trustless verification, Web3 identity, civil resistance
- Watch: https://streameth.org/watch/yt-F_br2SXWATU
- YouTube: https://www.youtube.com/watch?v=F_br2SXWATU

## Description

Ayman Mohammed’s workshop introduces Self Protocol, a decentralized identity solution that eliminates the need for traditional KYC by enabling users to verify personal attributes without exposing sensitive data. Instead of sending full identity documents to third parties, users register once using passports, Aadhaar, or biometric IDs, generating a unique nullifier to ensure civil resistance and privacy. The system uses zero-knowledge proofs (ZKPs)—specifically Groth16 and Circom—to verify attributes like age, nationality, or OFAC compliance, allowing users to disclose only what’s necessary. Self’s registration process anchors identities in an onchain Merkle tree, ensuring anonymity and preventing duplicate sign-ups while maintaining verifiability.

During the session, Ayman demonstrates Self’s SDK and QR code verification flow, where users scan a QR to selectively prove claims (e.g., “over 18” or “not from the U.S.”) via the Self mobile app. Developers can integrate this using the onchain SDK, writing custom smart contracts that inherit from SelfVerificationRoot and define hooks for proof verification. Ayman emphasizes onchain verification as the most trustless option, avoiding backend censorship risks. The session concludes with new SDK features like programmatic config creation, scope handling improvements, and simplified contract deployment. Self’s hackathon bounties prioritize onchain integrations with higher rewards to encourage developers to build privacy-preserving verification systems for decentralized apps.

00:02 – Introduction to Self Protocol and session overview
00:29 – Problems with current KYC systems and data security risks
00:54 – Why Self eliminates unnecessary KYC through selective disclosure
01:19 – How Self uses passports as trusted, machine-readable identifiers
02:08 – Nullifiers and civil resistance via identity-based proofs
02:43 – Selective disclosure of personal attributes for privacy
03:03 – Custom claims: age verification and OFAC exclusion checks
03:56 – Aadhaar and biometric ID support for broader global coverage
04:26 – Two-step process: registration and disclosure explained
05:10 – How registration ensures anonymity and prevents duplicate identities
05:41 – Role of trusted execution environments (TEEs) in proof generation
06:14 – Overview of ZK proof stack (Groth16 + Circom)
06:42 – Developer integration using QR codes and SDKs
07:04 – Onchain vs. offchain verification and trust assumptions
07:35 – Hackathon bounties and prize structure for Self integrations
08:14 – Live demo setup: QR-based disclosure of age and country attributes
09:23 – Using the Self app to scan and verify attributes in real time
09:56 – Explanation of Self app builder config and parameters
10:31 – Verification process walkthrough with test network
11:09 – Smart contract example: extending SelfVerificationRoot
11:53 – How to override hooks for proof verification and event logging
12:36 – Matching frontend and contract verification configs
12:56 – Contract deployment setup and configuration example
13:26 – Repository overview: frontend QR code + Solidity contracts
13:55 – Handling multiple ID formats and disclosure data differences
14:21 – Specification nuances: passport vs. Aadhaar data formats
15:13 – New SDK improvements: programmatic config setup and scope handling
16:01 – How the latest update simplifies verification configuration
16:20 – Final notes, Q&A, and booth invitation

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🇮🇳 *ETHGlobal New Delhi*
This workshop is specifically for ETHGlobal New Delhi, a 3-day hackathon held September 19-21 at the India International Convention & Expo Centre, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal New Delhi 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh7zCFW3hBqatZ18rQaYeEJL

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✅ *Follow Self*
X: https://x.com/SelfProtocol

✅ *Follow ETHGlobal*
X: https://x.com/ETHGlobal​
Warpcast: https://warpcast.com/ethglobal
Website: https://ethglobal.com
YouTube: https://www.youtube.com/c/ETHGlobal 

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