01. The Problem: Passive Second Screens & Gambling Grey Zones
During major sporting events like the World Cup, over 80% of spectators consume the match with a mobile device in hand. However, current fan interaction remains completely passive: refreshing static scores on live-ticker apps, doomscrolling social timelines, and waiting for highlights.
Existing Web3 solutions uniformly converge into the same pattern: sportsbooks. They demand that users deposit collateral, calculate odds spreads, and risk capital on binary outcomes. This creates two immediate systemic barriers:
- Regulatory Exclusion: Sportsbooks face aggressive geo-blocking, compliance red tape, and strict state licensing frameworks, excluding the majority of global retail fans.
- High-Friction Onboarding: Forcing a user to purchase, bridge, and risk tokens just to engage with a live soccer match destroys consumer retention and viral loop mechanics.
- Oracle Opacity: Centralized betting apps compute resolutions internally in private databases. Bettors must take match resolutions on pure faith without cryptographic proofs.
02. Strategic Positioning: Skill & Cryptographic Proof vs. Betting
Octopus Crowd deliberately dissociates sports prediction from financial wagering. It operates strictly as a real-time, skill-based intuition game:
// Non-Custodial Identity LayerThe connected Solana wallet acts solely as an Ed25519 identity anchor. It signs session tokens and links global leaderboard streaks. It never deposits, holds, or risks user funds.
// Mathematical Verification (TxLINE Merkle Proofs)Resolutions are not asserted by an opaque server. Each resolved challenge fetches an immutable Merkle inclusion proof directly from TxLINE’s on-chain oracle endpoints, allowing any participant or auditor to verify that the underlying event occurred.
// The CrowdBrain Reputation EngineInstead of compiling a single numerical score, the engine computes specialized categorical reputation indices (Next Goal Accuracy, Cards, Corner Readings), establishing a verifiable record of fan intuition.
“Octopus Crowd is not a sportsbook in disguise. It is a real-time engagement layer for sports media brands built on live, cryptographically verifiable telemetry.”— Vinicius Pontual, Project Demonstration
03. Demonstration: Match Room & Real-Time Execution
Live run illustrating real match telemetry consumption, automatic challenge initiation, instantaneous zero-intervention resolution, and Merkle verification:
04. Pipeline Architecture: Ephemeral Ingestion & Edge Sync
To maintain high throughput without incurring continuous infrastructure server costs, the pipeline decouples data consumption from frontend presentation:
- TxLINE Live SSE Consumers: A dedicated Node 22 worker binds to TxLINE's Server-Sent Events stream (
/api/scores/stream). It consumes event deltas including kickoffs, periodic ticks, yellow/red bookings, and confirmed goals. - Ephemeral GitHub Actions Workers: Rather than paying for an always-on VPS, worker instances are orchestrated via GitHub Actions workflows triggered during active match schedules.
- Neon Serverless Postgres: Raw events are written immediately to Neon Postgres connection pools. When a goal event triggers, the worker resolves open challenges in an atomic SQL transaction and dispatches the next micro-challenge simultaneously.
- Next.js 16 Edge API Routes: Frontend clients consume normalized challenge state through lightweight API routes authenticated via Solana wallet signatures.
05. Front-Running Defense & API Integrity
Micro-prediction games face exploitation from latency arbitrage and client-side clock tampering. Octopus Crowd enforces defensive guarantees:
06. Specifications & Live Deployment Endpoints
Technical artifacts and core dependencies utilized in the live build:
| Component | Specification / Endpoint |
|---|---|
| Telemetry Provider | TxLINE Live Oracle (Scores & Odds SSE) |
| Proof Endpoint | GET /api/scores/stat-validation (Merkle Proof) |
| Runtime Stack | Next.js 16 App Router, Turbopack, Tailwind CSS 4 |
| Database Architecture | Neon Serverless Postgres (@neondatabase/serverless) |
| Test Coverage | Vitest unit suite validated on real goal payloads |
pnpm --filter core exec vitest run
