Clear DefinitionsDigital Twin
1 min read
Pronunciation
[di-ji-tl twin]
Analogy
Like having a virtual model of a jet engine that receives live sensor data so engineers can predict maintenance needs.
Definition
A digital replica of a physical asset, process, or system—recorded on a blockchain—to enable real‑time monitoring, simulation, and lifecycle management.
Key Points Intro
Digital twins link on‑chain records to real‑world assets for transparency and automation.
Key Points
Real‑time data: Sensors feed state updates to the digital twin.
Immutable record: Blockchain stores event history and provenance.
Simulation: Enables what‑if analyses on virtual model.
Automation: Smart contracts trigger actions based on twin state.
Example
A shipping container has an IoT sensor updating its digital twin on a blockchain; if temperature exceeds threshold, a smart contract automatically notifies insurers.
Technical Deep Dive
Edge devices sign sensor readings with device keys; data ingested via oracles and recorded in a Merkle‑linked time series. Twin smart contract exposes `getState()` and emits events on threshold breaches.
Security Warning
Compromised IoT devices can feed false data; secure device identity and use attestation.
Caveat
Data quality depends on sensor reliability and oracle integrity.
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