Create utility provider reliability score api#154
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elizabetheonoja-art merged 3 commits intoUtility-Drip:mainfrom Apr 3, 2026
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- Add ReliabilityBadge enum (None/Bronze/Silver/Gold) - Add ProviderReliabilityScore contracttype tracking windows_online, windows_total, score_bps, badge, last_updated - Add DataKey::ReliabilityScore(Address) for per-provider storage - Add RELIABILITY_BADGE_GOLD/SILVER/BRONZE_BPS constants (9900/9500/9000) - Add compute_reliability_badge() helper - Implement report_provider_uptime(): oracle-gated uptime reporting, recalculates score and badge on every call - Implement get_reliability_score(): full score record query - Implement get_reliability_badge(): lightweight badge tier query - Add 6 tests: Gold/Silver/Bronze/None badge tiers, unknown provider no-op, and score accumulation across multiple report batches - Fix pre-existing bugs: gas_estimator f32/LargeScaleCostEstimate, billing group Soroban Vec API, symbol_short length limits, moved value errors, fuzz test imports and missing struct fields Closes: Create-Utility_Provider_Reliability_Score_API
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Added an on-chain reputation system for utility providers. The oracle periodically calls report_provider_uptime(provider, was_online) to record whether a provider was reachable during an observation window. The contract accumulates those reports and derives a score in basis points (e.g. 9900 = 99% uptime), then automatically assigns a badge tier — Gold (≥99%), Silver (≥95%), Bronze (≥90%), or None.
Users can call get_reliability_score(provider) before starting a stream to see the full history, or get_reliability_badge(provider) for a quick tier check. This creates market transparency that rewards high-uptime providers with more customers and pressures low-quality ones to improve.
closes #116