EIP-4: Markets Impact Score

Summary EIP-4 introduces a new score element that incorporates Ethos Reputation Markets data into the reputation-scoring algorithm. Anyone who creates a reputation market will have their market’s trust percentage influence their reputation score, enabling bidirectional, financially-incentivized sentiment analysis to complement existing mechanisms.

Proposal Market Vote Impact Element Create a new score element called “Reputation Market Impact” that:

Rewards market creation with a +25-point opening bonus Reflects market sentiment through trust-percentage scaling Operates on an opt-in basis — only affects users who create markets Enables bidirectional feedback — both positive and negative sentiment Score Calculation Formula

Market Score = (Trust Percentage − 50) × 7.5 + 25

Score range: −350 to +400 points

Examples:

0 % trust (full distrust) → −350 pts 25 % trust → −162.5 pts 50 % trust (neutral) → +25 pts (opening bonus only) 75 % trust → +212.5 pts 100 % trust (full trust) → +400 pts Note: this is a linear approach. There is no bonding curve; the market vote price translates directly.

Benefits Opt-in financial scrutiny – users choose to open themselves to market-based fluctuations and are rewarded for taking that risk. Price discovery – market mechanisms reveal sentiment through financial incentives. Broader participation – participation in Ethos Markets does not require an Ethos profile. Safeguards Anti-gaming measures Manipulation resistance: attempts to manipulate scores introduce profitable counter-trading opportunities, making manipulation expensive.

Maximum score limit Because a full +400 points has the potential to push people over the 2800 score cap, the Review Impact category will be reduced by 100 points (nobody has reached full review impact yet, so no scores will be reduced).

This change will make it easier for users to hit the maximum score (2800); however, it will require:

Maxing out all other score categories Achieving 80 % or more Trust