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The 555 Arcade

The 555 Arcade is the user-facing layer of the ecosystem. It is where the “Invisible Engine” becomes visible. It is built as a Next.js Monorepo utilizing the 555x402 SDKs.

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Integration Architecture

The Arcade is not just a website; it is a VAP Client. Every game hosted in the arcade is wrapped in a “Harness” that communicates with the protocol.

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The Game Harness

The Harness is a React component that manages the VAP session lifecycle. 
<GameHarness appId="sector-13" onSessionStart={handleStart}>
  <PhaserGame />
</GameHarness>

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The Event Loop

  1. Initialization: The Harness connects to wss://vap.rendernet.work.
  2. Gameplay: The user plays the game. The game engine emits events (SCORE_UPDATE, ENEMY_KILL).
  3. Hashing: The Harness aggregates these events into a Merkle Root every 5 seconds.
  4. Signing: The user’s wallet (via session key) signs the root.
  5. Transmission: The signed payload is sent to the VAP Verifier.

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The Economy

The Arcade is the primary sink and source for the ecosystem’s tokens.

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$555 Token (The Points)

  • Type: SPL Token (Fungible).
  • Utility: Used for micro-transactions (Continue? Insert Coin).
  • Velocity: Designed for high velocity. Earned fast, spent fast.

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USDC (The Capital)

  • Type: SPL Token (Fungible).
  • Utility: The underlying gas of the “Streaming OS”.
  • Rewards: High-value quests and “Boss Battles” pay out in real USDC.

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Audience Yield

The Arcade turns players into stakeholders.
  • Play-to-Earn (Evolution): Unlike gen-1 P2E, rewards are sustainable because they are funded by Advertiser Demand, not inflation.
  • Attention Mining: Simply being present and verified in the Arcade mines value from the “Attention Liquidity Pool”.

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Leaderboards

Leaderboards are not just database rows; they are Aggregated Proofs.
  • Source of Truth: The Redis ledger maintained by the VAP Verifier.
  • Sync: Synced to Postgres for easy querying by the Frontend.
  • Verification: Any score on the leaderboard can be traced back to a signed VAP packet.