> For the complete documentation index, see [llms.txt](https://docs.bvm.network/bvm/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bvm.network/bvm/bitcoin-heartbeats/chain-heartbeats.md).

# Chain heartbeats

Chain heartbeats provide transparent and verifiable insights into new scaling technologies — such as rollups and sidechains.

<figure><img src="https://824077807-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F4LrpKdKCJA4rekyqoMPj%2Fuploads%2Fk9AKfCVyBfY0a4r5QsTm%2Fimage.png?alt=media&amp;token=9ecc136b-b70b-4bc8-85d7-9937ccc4eee2" alt=""><figcaption><p>Chain Heartbeats</p></figcaption></figure>