City Passport
To ensure fair distribution and prevent Sybil attacks, City Protocol utilizes City Passport. City Passport acts as an on-chain reputation and identity layer that accurately measures a user's true contribution to the network's mindshare.
City Passport ranks users based on their historical interactions, the quality of their User-Generated Content (UGC), and their overall engagement score within the ecosystem.
Why City Passport Exists
Open distribution mechanisms are structurally vulnerable to Sybil attacks, wash activity, and mercenary farming. Without a reputation primitive, rewards leak to low-signal wallets and dilute the participants who drive real network growth.
City Passport addresses this at the identity layer:
Every score is derived from on-chain activity bound to a user's wallet and decentralized social accounts. There is no off-chain account, no centralized attestor, and no platform-controlled revocation. Reputation is portable across the ecosystem by default.
Ranking Inputs
City Passport ranks users across three verifiable inputs. Each input is sourced from on-chain activity within the City Protocol ecosystem and feeds into a composite reputation score.
Historical Interactions
Cumulative on-chain activity over time
Establishes persistence and authenticity
UGC Quality
Content output measured by quality, not volume
Rewards meaningful creative contribution
Engagement Score
Overall participation across the ecosystem
Quantifies breadth and depth of presence
Fair Distribution and Sybil Resistance
City Passport feeds directly into the distribution logic of the City Protocol ecosystem. By ranking users on verifiable on-chain signal rather than wallet count or point-in-time balances, it produces three compounding outcomes:
Sybil-resistant allocation Rewards are weighted by reputation, so spinning up additional wallets no longer yields proportional returns.
Mindshare-aligned
Distribution flows toward the users whose historical interactions, UGC, and engagement actually grow the network.
Composable reputation
As more projects rely on City Passport for AaaS, a user's rank becomes portable capital across the ecosystem.
The result is a distribution model where influence and rewards accrue to measurable contribution, not to capital velocity or wallet multiplication.
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