Technical Architecture

SyncID is a reference point that is linked to the user's crosschain wallet addresses and social accounts through a dynamic SBT (soul-bound token) which the user has full control over.

Its architecture is designed to offer a Sybil-resistant solution for digital identity, combining proof of personhood authentication for dApps, advanced encryption, decentralized storage, and multi-party computation to ensure the integrity and privacy of user identities.

• Data Encryption & Storage - SyncID starts by ensuring robust data encryption. All sensitive user data such as personal web2 identitifiers and biometrics is encrypted directly on the device.

The encryption key is sharded among the nodes, and MPC is utilized to reconstruct the information in memory during payload delivery.

• Privacy-Preserving Data Use SyncID strictly controls access to decrypted data through user permissions, preserving privacy. SyncID issues an on-chain credential embedded with anonymized sensitive data and related metadata, allowing for identity verification.

Component Breakdown:

Client-Side (User Device)
Component	Component
Authentication & Encryption	User connects their wallet or email
Social Account Integration	Users attach social accounts
Blockchain Address Integration	Users can add multiple blockchain addresses for multi-chain support.
Biometrics	Palm based vector data
Data Processing Layers
- Transformation	Data is normalized for consistency.
- Enrichment	Additional context is added to the data.
Multi-Party Computation
- Encryption	All of the above data is encrypted client-side.
- Sharding	The encryption key is sharded across nodes.
Updation & Verification
Updation Enginer	Users can update the nonsensitive metadata values.
Verification Engine	Issues and verifies credentials using SyncID Registery