SCU Protocol defines how human contributors validate AI-generated content, how consensus scores are computed, and how contribution value is measured across distributed networks.
Three cooperating systems form the SCU ecosystem.
Core infrastructure layer. Hosts datasets, APIs, documentation, research papers, and developer tools for the semantic validation ecosystem.
This document. Defines the consensus engine, validation types, trust scoring, reputation model, and the SCU unit specification.
The contributor network. Handles OAuth identity, widget distribution, site API keys, SCU wallets, and the admin approval pipeline.
Reference implementation of a product built on top of SCU Connect. Demonstrates full widget integration and real-world validation flows.
How a single human action moves through the protocol.
User interacts with the SCU widget embedded on a third-party site.
JWT widget token validated. Rate limit checked. Duplicate prevention enforced.
ValidationAction persisted with type, content reference, site ID, and IP.
SCU tokens minted and added to contributor wallet. Transaction logged.
Consensus score and contributor trust score recalculated.
| Type | Semantic Meaning | SCU Reward | Weight in Consensus |
|---|---|---|---|
| like | Content is semantically accurate and contextually correct. | 0.010 SCU | +1 positive signal |
| dislike | Content contains a semantic problem or factual issue. | 0.010 SCU | +1 negative signal |
| verify | Content verified against external reference by a trusted validator. | 0.015 SCU | +1.5× positive (trust-weighted) |
| correction | Contributor submits a corrected version of the content. | 0.050 SCU | Triggers re-validation cycle |
| context_approval | Content is appropriate for its stated context and audience. | 0.020 SCU | +1 contextual signal |
Not a raw vote count. A trust-weighted semantic agreement score.
| Level | Requirements | Vote Weight |
|---|---|---|
| Novice | 0–9 validations | 0.5× |
| Contributor | 10+ validations, ≥ 60% accuracy | 1.0× |
| Validator | 100+ validations, ≥ 75% accuracy | 1.5× |
| Expert | 500+ validations, ≥ 85% accuracy | 2.0× |
| Arbiter | Manual grant by protocol admin | 3.0× |
Fraud Prevention
The protocol enforces: one vote per user per content reference · IP-based rate limiting (50 votes/hour) · Device fingerprint anomaly detection · Sybil detection via cross-account correlation · Automatic flagging to FraudDetection table
A utility unit that measures and rewards semantic contribution. Not a financial instrument.
Validators earn SCU for accepted validations, quality corrections, consensus alignment, and high-trust contributions.
SCU unlocks advanced AI refinement, premium API access, semantic processing credits, and priority content review.
SCU is a contribution utility unit — similar to RLHF reward signals. It measures semantic contribution quality, not speculative market value.
Future versions may support optional wallet binding (EVM-compatible) for interoperability with broader AI contribution markets.
REST endpoints provided by SCU Connect for widget and site integration.
/api/widget-init.php
Initialize a widget session. Returns user info (if logged in), consensus score for the current page, and a short-lived JWT widget token.
/api/validate.php
Submit a validation action. Awards SCU, updates consensus score, increments contributor stats.
/api/balance.php
Returns authenticated user's SCU wallet balance, contributor score, and recent transactions.
Integrate semantic validation into your AI product. One widget tag is all it takes.