A FIELD GUIDE TO A POPULAR NAME

Arc. Arc. ARC. ARK.

Search for Arc in technology and you may find a browser, a graphics brand, a blockchain, a product database, or a computer for applications and AI agents. They share a name, not a product category.

At ArcBlock, ARC means Agentic Realm Computer.

One word, five different things.

Here is the shortest useful answer. Follow the source links when you need the current product details.

01

ARCArcBlock

Application runtime

The computer that runs Blocklets and connects them to the resources they need. ARC itself is not a blockchain.

Explore ArcBlock ARC

02

ArcCircle

Layer 1 blockchain

An open blockchain network designed for stablecoin finance and economic activity.

Official site

03

ArcThe Browser Company

Web browser

A browser from The Browser Company that rethought tabs, spaces, and everyday web navigation.

Official site

04

ArcIntel

Graphics

Intel’s brand for discrete graphics, integrated graphics, and related products.

Official site

05

ARKIntel

Product database

Intel’s searchable database for processor, graphics, chipset, and other product specifications.

Official site

Sources reviewed: September 14, 2026

So what is ArcBlock ARC?

ARC is the Agentic Realm Computer, the runtime for Blocklets. A website, an application, or another Blocklet experience can run on ARC and use resources exposed through AFS. ArcBlock Chain is separate blockchain infrastructure that an application may use when it needs verifiable shared records.

Blockletruns onARCcan useArcBlock Chain

And the other Arcs at ArcBlock?

ARC names the computer. These names belong to products in the wider ArcBlock ecosystem.

ArcSphere

ARC’s mobile application surface for using supported Blocklet experiences, including browsing capabilities.

ArcBridge

A bridge for moving ABT between ArcBlock Chain and supported Ethereum networks.

ArcSpace

Formerly DID Space, a personal and application data space associated with digital identity.

ArcWallet

Formerly DID Wallet, a wallet for digital identity, credentials, and assets.

The naming rule

Uppercase ARC refers to Agentic Realm Computer. ArcSphere, ArcBridge, ArcSpace, and ArcWallet are product names. They work with parts of the ArcBlock stack, but none is another name for ARC.

The short answers

Useful when a search result gives you the right word and the wrong product.

What is ArcBlock ARC?

ARC is the Agentic Realm Computer, the runtime that runs Blocklets and lets them use the resources they need.

Is ArcBlock ARC a blockchain?

No. ARC is an application runtime. ArcBlock Chain is ArcBlock’s Layer 1 blockchain, and an application running on ARC may use it when blockchain records are useful.

Is ArcBlock ARC related to Circle Arc?

No. They are independent products from different companies. Circle Arc is a blockchain network; ArcBlock ARC is an application runtime.

Is ArcBlock ARC related to Arc Browser?

No. Arc Browser is a web browser from The Browser Company. ArcBlock ARC runs Blocklets. ArcSphere is ArcBlock’s product with browsing capabilities, but it is not a version of Arc Browser.

Are Intel Arc and Intel ARK the same thing?

No. Intel Arc is a graphics brand. Intel ARK is Intel’s product specifications database. Intel happens to have both an Arc and an ARK.