Brand

The HASH brand includes our name, logos, marks, trademarks, avatars, and other unique elements of our look and feel.

Referring to HASH in writing

Brand name

In writing, used standalone or as part of a sentence, our name is always capitalized. For example, HASH is correct. Hash or hash are not.

The only two exceptions to the all-capitalization of our brand name in writing are:

1. When HASH appears as part of a URL. In such cases, the brand name should be lowercased. For example, https://hash.ai is correct, but https://HASH.ai and https://HASH.AI are not.
2. In certain cases when our brand is incorporated into part of another product name: for example, in the context of HashPFM and HashQL.

Always distinguish our brand name from its surrounding text. Ordinarily, all-caps display of the brand (HASH) is sufficient, however in an all-caps sentence the brand should additionally be italicized, placed within quotes, or rendered in a different type style or weight.

Legal entities

Entity Name	Country
HASH GmbH	Germany
HASH, Ltd.	United Kingdom
HASH, Inc.	United States

Sub-brands

Besides our core HASH product, we operate the following sub-brands:

1. HashPFM;
2. hgres, which consists of hGraph, HashQL and HaRPC;
3. Petrinaut;
4. Brunch; and
5. the Block Protocol.

Other projects and open-source publications from HASH may also have their own nominal brands. For example, HASH Core (hCore); and error-stack (a Rust crate).

Download HASH Brand Assets

HASH Brand Pack (Logo & Mark) - last updated 2026-07-01

You may submit a request for permission to use these assets by contacting us and agreeing to meet our brand standards outlined here.

You may only use these assets in line with our brand standards. Although we're keen to accommodate wide usage of HASH, we need to make sure our brand is used in the right way.

Terms of Brand Assets usage

We've put together some assets for those times when you want to show off your HASH work, or link back to us. These various "HASH Assets" include our avatars, logos, favicons, and other fun things.

If we provide written requirements (size, typeface, colors, etc.) to you at the time of our approval, please implement them before using our brand. If we provide these requirements to you after we initially gave our permission, please implement them within a commercially reasonable timeframe.

Features of our brand are protected by law, and you must have received permission from HASH in writing in order to use them.

DO	DON'T
Use HASH Assets to link to our website	Use the HASH logo, mark or other Brand Assets in your application's icon, logo, names or trademarks
Use HASH Assets in social buttons to link to your hash.ai-hosted profile or work	Change the colors, dimensions or add your own text/images
Use HASH Assets to advertise that your product has built-in HASH integration	Use HASH Assets to imply any affiliation, relationship, partnership, sponsorship, or endorsement
Spell and capitalize the trademark exactly as outlined on this page	Don’t display any HASH Brand Assets as the most prominent element in your content
Use HASH Assets in a blog post or news article about us	Adopt marks, logos, slogans, or designs that are confusingly similar to HASH's Brand Assets
Use only HASH-approved artwork when using HASH's logos	Register HASH trademarks as second- or third-level domain names
Maintain clear space around HASH logos according to the provided guidelines	Create modified versions of HASH Assets
Contact us if you require additional assets or information, or are unsure if your case is covered here	Use any HASH Assets without permission
	Sell any HASH Assets without permission
	Use the registered trademark symbol (®) in countries where our marks have not been registered — trademark rights vary from country to country