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description: On the blockchain for traceability
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# Message signature

CONNECTIFY uses the blockchain to guarantee complete traceability of data from its origin to the final application. Every message or transaction generated by connected objects, with or without encrypted data, is immediately time-stamped and signed on the Hedera public blockchain. For voluminous data, only the hash of the message is recorded on the blockchain.

This decentralized, immutable record certifies the origin, exact time and integrity of each piece of data. It is impossible to falsify or modify a message after the fact, without this being detectable. Blockchain thus guarantees end-to-end traceability, from the generation of data by the connected object to its reception by business applications.

Thanks to the essential contribution of blockchain, CONNECTIFY gives users back ownership of their data. They can check their life cycle in the IoT ecosystem at any time.

<figure><img src="https://2910717012-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgThMxRe8puPyXyB8TKPn%2Fuploads%2FTzOndtKN03rcunVZhVJJ%2FDeck_Connectify_5.png?alt=media&#x26;token=756effbd-3a42-44d9-9d4d-732d4ca03eb5" alt=""><figcaption></figcaption></figure>
