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Thursday, 22 October 2026 Reading Room

Tech

How do you erase what you anchored?

Ukratko: osobni podaci izvan chaina uz nasumični salt po zapisu; na chain ide samo commitment. Obrišete li podatak i salt, commitment ne pokazuje ni na što. Decision ledger je koristan jer se njegovi zapisi ne mogu naknadno mijenjati. Isto svojstvo postaje problem prvi put kad zapis sadrži osobne podatke, a netko traži njihovo brisanje. Odgovor se određuje pri projektiranju, prije prvog anchora,…

Translated from French Read in French

dev.to ·

An article discusses how to handle personal data on a blockchain, specifically when it comes to deleting such data. To balance data integrity with the right to be forgotten, the author suggests splitting data into two parts: content stored in a conventional database or store under user control, and a commitment to that content stored on the blockchain.

The commitment is a hash of the content and a random salt value, which is stored off-chain. When a deletion request is made, the content and salt are deleted from the off-chain store, leaving the commitment on the blockchain but making it impossible to verify. This approach allows for data integrity to be maintained while also enabling the deletion of personal data.

Written by urgent.news from Dev.to's report — not a translation of it. Machine-written — may contain errors; check the original before relying on it.

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