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

# peaq verify

peaq verification establishes where physical machine data came from and how much it can be trusted. It has three tiers, each with its own page of steps.

## Tier 1: machine-origin authentication

* **Description**: data that comes straight from the device.
* **Trust level**: the highest of the three, because the data is signed at the source.
* **Implementation**: the device signs the data with its private key before sending it to the network, so any party can check the signature against the machine's onchain identity.

## Tier 2: pattern matching validation

* **Description**: data that does not come straight from the device but is relevant to devices already on the network.
* **Implementation**: the data is compared against patterns learned from an existing device. Matching patterns indicate trustworthiness.
* **Trust level**: trustworthy, but less so than Tier 1.

## Tier 3: oracle-backed authentication

* **Description**: data verified through an oracle.
* **Implementation**: the oracle confirms the data source against external references or predefined criteria.
* **Trust level**: secure, but it depends on the oracle you pick.