> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pulsy.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Running Feeds

> Understand what happens while feeds are running.

# Running Feeds

When a feed is running, the Runtime claims the feed with a lease, reads block data, executes logic, and advances the feed cursor. The lease is the runtime's temporary ownership marker, so another runtime instance does not process the same feed at the same time.

## Start Block

If a feed has a `startBlock`, processing begins there. If not, the runtime can start from the current chain head.

## Block Delay

A feed can use a block delay so it processes blocks only after the chain has advanced beyond them. This can reduce reorg risk.

## Cursor

The cursor stores the next block to process. If the feed restarts, it resumes from the cursor.

See [cursors and block delay](/atria/core-concepts/cursors-and-block-delay).

## Pausing

Feeds can be paused manually or by the system after repeated runtime or delivery failures.

See [feed lifecycle](/atria/core-concepts/feed-lifecycle).