Ethelia is Ethereum blockchain storage provider for different kinds of lightweight data like trace spans, logs, events, tags and notifications. Consider a netw

Ethelia is Ethereum blockchain storage provider for different kinds of lightweight data like trace spans, logs, events, tags and notifications. Consider a network with functionally different nodes: IoT, programmable logic controllers (PLC), sensors, smart home systems, micro-services, standalone multi-threading or mobile applications. Every node runs own duty cycle with state changes, logging and events emission. In general non-critical state changes or usual events should not be logged, but once the node detects some anomaly or exceptional behavior, importance of logging increases exponentially. The idea is to store tamper-proof and sensitive data on blockchain instead of regular database. Blockchain gives decentralization, security and resistance against data corruption or falsifying. Unfortunately, blockchain node does not manage direct data access — we need high level application or service to do that. This is Ethelia: https://ethelia.pheix.org/ https://ethelia.pheix.org/