# Mythos Substrate Supply-side fees Methodology

## 1. Overview

Supply-side fees measures the portion of fees generated within the Mythos ecosystem that is distributed to service providers. For Marketplace and DMarket, 100% of the commissions paid by buyers and sellers are classified as supply-side fees, as these represent the value shared with ecosystem participants. For the Mythos Substrate chain product, the metric is set to zero, reflecting that base transaction fees and tips are currently retained by the protocol rather than distributed to external service providers or liquidity participants.

## 2. Data sources

- **Blockchain events**: `OrderExecuted` events from `Marketplace` pallets and `TransactionFeePaid` events, covering Mythos
- **External data**: End-of-day price feeds for the MYTH asset

## 3. Step-by-step calculation

### Component A: Marketplace and DMarket fee collection

- **Purpose**: Captures fees generated by trading activity on the Marketplace and DMarket products
- **Logic**: `OrderExecuted` events are parsed from the `Marketplace` pallet to identify executed trades. The `buyer_fee` and `seller_fee` are extracted from the event data and summed to determine the total fee generated per transaction. For Marketplace and DMarket, 100% of these collected fees are allocated to the supply-side fees metric.
- **Key fields**: `buyer_fee`, `seller_fee`

### Component B: Mythos Substrate transaction fee classification

- **Purpose**: Determines the supply-side portion of native network transaction fees
- **Logic**: Transaction activity is monitored using `TransactionFeePaid` events to track base fee amounts and tips paid in the native MYTH asset. For the Mythos Substrate chain product, the supply-side fee metric is hardcoded to zero. This classification indicates that network-level fees are not currently distributed to supply-side participants.
- **Key fields**: `amount`, `tip`

### Component C: USD conversion and aggregation

- **Purpose**: Normalizes collected fee data into a common currency and time grain
- **Logic**: All fee amounts are normalized by decimal precision. The resulting values are converted to USD by multiplying the asset quantities by the end-of-day price feeds for the MYTH asset. Daily totals are aggregated across all products using UTC day boundaries.

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

Portion of fees distributed to service providers or supply-side participants.

Supply-side fees

Blockchains (L1)

Collators aggregate parachain transactions block candidates and producing state transition proofs for validators based on those blocks.

Mythos Substrate

Archived

Supply-side fees

Supply-side fees

Chain breakdown