> For the complete documentation index, see [llms.txt](https://docs.rubyscore.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rubyscore.io/how-rubyscore-works/on-chain-confirmation.md).

# On-chain confirmation

#### 1) Multichain Reputation Score (MRS)

* **What it is:** a record in a specialized on-chain data registry reflecting your current multichain score.
* **How it works:** MRS can be **minted and updated for free**, fixing the current value (with a change history available via on-chain events).

#### 2) Score Level

* **What it is:** levels (tiers) that confirm a wallet’s on-chain achievements **within a specific ecosystem**. **There are 10 levels (1–10)**, each corresponding to a defined activity range.
* **How it works:** each **level mint** is a **step-by-step confirmation** of a reached threshold; levels are cumulative and can be upgraded as activity grows.
* **Properties:** levels are issued as **SBTs (soulbound tokens)** — **non-transferable**, verifiable on-chain proofs of progress.

#### 3) PoH ID (Proof-of-Human ID)

* **What it is:** an **SBT (soulbound token)** — a one-time “passport” **for a specific ecosystem**, based on your on-chain actions within it.
* **How it works:** PoH ID is minted once upon meeting the ecosystem’s requirements (rules and thresholds set by the project); it can be accompanied by local levels/badges.
* **Properties:** **non-transferable**, serves as on-chain proof of “human-ness” based on your on-chain contribution.

#### 4) Reputation Domain (linked to MRS)

* **What it is:** a human-readable reputation name/domain associated with your **Multichain Reputation Score (MRS)**.
* **How it works:** minting the domain binds a display name to your wallet and **references the current MRS**. When MRS is updated, the domain reflects the new score. The domain record is stored in the **data registry alongside your reputation score**.

#### 5) Vote (favorite network voting)

* **What it is:** an on-chain vote that captures a user’s preference for a specific network/ecosystem.
* **How it works:** the user submits a vote for their “favorite network”; the vote is recorded on-chain, can appear in the user’s profile, and can be aggregated into **network ranking** metrics.