Is bittensor layer 1?

Could you please clarify for me if Bittensor qualifies as a Layer 1 blockchain? I've been reading about its architecture and it seems to have unique characteristics, but I'm not entirely sure if it falls into the Layer 1 category. Could you explain the reasons for your answer? Additionally, if it's not Layer 1, what layer would you categorize it as and why? Thank you for your assistance in clarifying this matter.