# What SN9 / IOTA means on Train at Home

On IOTA Watch, IOTA is the Bittensor subnet 9 (SN9) alpha token used by Train at Home. It is not TAO and not the IOTA Foundation Layer 1 coin.

- Canonical: https://iotahome.site/en/learn/what-is-sn9-iota
- Publisher: IOTA Watch
- Topics: IOTA
- Published: 2026-09-12
- Updated: 2026-09-12

Train at Home rewards are denominated in the subnet’s **alpha token**. People call it IOTA or **SN9**. IOTA Watch uses the same unit the official entitlements API returns.

## SN9 in one line

SN9 is Bittensor subnet 9 — Macrocosmos IOTA Train at Home. The CoinGecko id for that token is `iota-2`. Do not use the Layer 1 id `iota`.

## What it is not

- Not **TAO**, the Bittensor parent token

- Not the **IOTA Foundation** Layer 1 coin used by Firefly

- Not a dollar payout. USD on the dashboard is a public-market estimate only

If search results keep sending you to the wrong IOTA, read [Train at Home vs the IOTA coin](https://iotahome.site/en/learn/iota-train-at-home-vs-iota-coin).

## How IOTA Watch uses it

Today and lifetime figures stay in official IOTA amounts. The USD line multiplies those amounts by a public SN9 price. Missing price shows a dash, never $0. Details: [USD estimates](https://iotahome.site/en/learn/iota-rewards-in-usd) and [reward rules](https://iotahome.site/en/learn/how-rewards-work).

> IOTA Watch cannot send, swap, or custody this token. It only displays official accounted amounts.