System Architecture

FeedOracle's 8-layer architecture from raw blockchain data to NFT attestations for blockchain sustainability data infrastructure

Architecture Overview

┌─────────────────────────────────────────────────────────────────────┐
│  LAYER 8: COMPLIANCE ENGINE                                [NEW]     │
│  └── MiCA Verification, ISO 20022, Circuit Breaker, CCI Score        │
├─────────────────────────────────────────────────────────────────────┤
│  LAYER 7: NFT LAYER (Polygon Mainnet)                               │
│  └── Access Passes, Certificates, Attestation Records               │
├─────────────────────────────────────────────────────────────────────┤
│  LAYER 6: DAP – Disclosure Attestation Protocol                     │
│  └── Cryptographic proof of data delivery + timestamp anchoring     │
├─────────────────────────────────────────────────────────────────────┤
│  LAYER 5: DISCLOSURE APIs                                           │
│  └── MiCA disclosure, CSRD/ESRS, DORA formatted responses              │
├─────────────────────────────────────────────────────────────────────┤
│  LAYER 4: EVIDENCE LAYER (RLUSD)                                    │
│  ┌───────────────────────────────────────────────────────────────┐  │
│  │ PDF Attestation → JSON Snapshot → SHA-256 content_hash        │  │
│  │      ↓                                                        │  │
│  │ On-Chain Anchoring: XRPL (active) + Polygon (planned)         │  │
│  │      ↓                                                        │  │
│  │ Verify API → Evidence Pack → CCI Score (0-100)                │  │
│  └───────────────────────────────────────────────────────────────┘  │
├─────────────────────────────────────────────────────────────────────┤
│  LAYER 3: INDICATORS                                                │
│  └── Carbon, Energy, Trade, Macro, RWA Monitoring                   │
├─────────────────────────────────────────────────────────────────────┤
│  LAYER 2: CONTEXT DATA                                              │
│  └── World Bank, FRED, UN Comtrade, OWID, EMBER                     │
├─────────────────────────────────────────────────────────────────────┤
│  LAYER 1: RAW DATA                                                  │
│  └── Blockchain RPC (53+ Networks), Network Statistics              │
└─────────────────────────────────────────────────────────────────────┘

Layer Details

Layer 1: Raw Data Collection

Direct blockchain data from 53+ networks via RPC endpoints. Network statistics, transaction counts, validator information.

Layer 2: Context Data NEW

Institutional macroeconomic data for RWA validation: World Bank (GDP, inflation), FRED (US economic data), UN Comtrade (trade flows), OWID (energy data), EMBER (grid carbon intensity).

Layer 3: Indicators

Calculated metrics: Carbon emissions (kg CO2/year), energy consumption (kWh), trade analysis, macro indicators.

Layer 4: Evidence Layer (RLUSD) NEW

Deterministic evidence infrastructure for RLUSD stablecoin transparency:

PDF Attestation → JSON Snapshot → SHA-256 content_hash
Blockchain anchoring: XRPL (active), Polygon (planned)
Circuit breaker (reserve_guard_v1)
CCI Score (0-100): Compliance Confidence Index

Key Endpoints:

GET /api/v3/rlusd/status
GET /api/v3/rlusd/evidence/latest
GET /api/v3/rlusd/cci
GET /api/v3/rlusd/verify/{hash}

API Reference → | OpenAPI →

Layer 5: Disclosure APIs

Regulatory-formatted responses for MiCA disclosure, CSRD/ESRS reporting, institutional ESG requirements.

Layer 6: DAP Protocol NEW

Disclosure Attestation Protocol - cryptographic proof of data delivery with timestamp anchoring and gas-optimized minting.

Layer 7: NFT Layer NEW

Polygon Mainnet smart contracts for API Access Passes, Evidence Certificates, and Attestation Records.

Layer 8: Compliance Engine NEW

Deterministic regulatory verification with signed Evidence Packs across multiple compliance verticals: MiCA stablecoin verification (5 coins, 3 policy modes), ISO 20022 payment validation (pain.001 XSD), Circuit Breaker detection, ZK-Solvency proofs, and CCI Score engine.

MiCA → | ISO 20022 → | Circuit Breaker → | CCI →

RLUSD Evidence Data Flow

PDF Attestation (BPM)
       ↓
JSON Snapshot + SHA-256 hash
       ↓
┌──────────┬──────────┐
│  XRPL    │ Polygon  │  (XRPL active, Polygon planned)
└──────────┴──────────┘
       ↓
/api/v3/rlusd/verify/{hash}

Smart Contracts

Registry:    0xa8F788e0E9e28F4A6aC73Be369CFA396a39a6ac4
Compliance:  0x1C1850F43ae47A31cB084aC34945893F8E257f85
AccessPass:  0xA071Bc94774B03b26F72084ec5b63E804E7C2DC4
Attestation: 0x8243AAC99d9004f6a972907bCF25148aF59Bf7C5
RLUSD Evid: 0x3a0A7f28a7fcA960D6f727Ba9914187948ceB3a6

FeedOracle provides data infrastructure for disclosure workflows. We do not certify, approve, or guarantee compliance with any regulation.