Yesterday, Spanish telecoms firm Telefónica announced the launch of a blockchain-based certification service via its own TrustOS platform.
The service targets corporates and allows them to authenticate documents, transactions or digital content by generating digital evidence of authorship and also the fact that the item has not been changed.
Typically, handling paper documents brings about a number of problems. First, they are susceptible to document forgery and carry the risk of being lost or spoiled. Paper document verification also often takes time since the document issuer can only do so manually.
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