ARC Space

Formerly DID Spaces

A data space associated with a DID. Create a personal space, or connect an application with the permissions and data model its task requires.

A data space associated with a DID. Create a personal space, or connect an application with the permissions and data model its task requires.

Related resources

DiscussKit, Rebuilt on ARC 2026-09-24
DiscussKit has been rebuilt on ARC, and ArcBlock Community has completed its move. This is a new division of responsibility across discussions, identity and user-owned data.
Why We Built Aside 2026-09-24
We watched great tools change hands or disappear. That is why ArcBlock built Aside: an ARC-powered iPhone app that sends every Share back to a place you own.
What's next: ARC, one real application at a time 2026-09-13
The new site is live. Here is how we plan to bring ARC into the community, data spaces and everyday applications, with migrations, new products and builders taking part along the way.

DID Space SDK (Node.js) legacy
@blocklet/did-space-js runs on Node.js to programmatically interoperate with DID spaces.
DID Spaces Guide legacy
DID Spaces User Guide: Learn features, characteristics and help channels.
DID Spaces UI (React) legacy
@blocklet/did-space-react: A React component library for DID Spaces connection & display.

Dapp
An application whose important state does not sit only in one operator's database. What counts as decentralized varies a lot between projects, so the useful question is which part is checkable by someone outside.
DID
A DID is a digital identifier. It helps its holder and a verifier establish who controls an identity and who a claim relates to. It is not a wallet, and it does not replace application accounts, sign-in methods, or permission rules.
Self-Sovereign Identity
The position that a person should hold their own identifiers and credentials and decide each time what to disclose. It is a stance about who is in control, not a protocol; decentralized identity is how it gets built.