Did hydrogen cause the Hindenburg accident?

The fire that destroyed the Hindenburg in 1937 gave hydrogen a misleading reputation. Hydrogen was used to keep the airship buoyant and was initially blamed for the disaster. An investigation by Addison Bain in the 1990s provided evidence that the airship's fabric envelope was coated with reactive chemicals, similar to solid rocket fuel, and was easily ignitable by an electrical discharge. The Zeppelin Company, builder of the Hindenburg, has since confirmed that the flammable, doped outer cover is to be blamed for the fire.

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Source
National Hydrogen Association