> ## Documentation Index
> Fetch the complete documentation index at: https://core.anylayer.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Identity System

> Understanding ZKScore identity and ZKS IDs

## Overview

ZKScore uses soulbound tokens (SBTs) for decentralized identity with ZKS IDs as human-readable names.

## Key Concepts

### ZKS ID

Human-readable identifier (e.g., `alice.zks`) that maps to wallet addresses.

### Soulbound Tokens

Non-transferable NFTs representing identity - once activated, they cannot be moved.

### Identity Resolution

ZKS IDs automatically resolve to wallet addresses in all APIs and SDKs.

## Related Documentation

* [Identity SBT Contract](/contracts/identity-sbt/overview)
* [Using ZKS IDs Guide](/guides/using-zks-ids)