Holochain-Time

What is Holochain-Time and what is it for?

Holochain-Time is a Holochain library for adding verifiable time bounds to actions. It is for apps that need to check whether an action existed before or after a time without relying only on its author's timestamp.

Holochain-Time addresses a gap in Holochain action timestamps: validators can check their order on an agent's chain, but not when an event happened in the world. It is intended to let applications attach evidence for time bounds that peers can verify.

The project combines signed time readings from Roughtime servers with statements from Holochain oracle agents. An anchor can establish a 'not before' bound for later actions on an agent's chain, while a seal can establish that an action's content existed by a time.

For example, a hApp can add the project's zomes to its DNA and use an anchor or seal around an action. A seal does not prove that the action was published by a deadline; the design says deadline applications may need a commit-reveal step. The README explains the integration.

From 3 public sources, checked 13 November 2026.