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The Participant Metadata service, also called coordination function, collects, aggregates and distributes so called Metadata from the different participants. By retrieving this Metadata, participants are able to validate the authenticity of tickets issued by other entities and securely communicate directly with each other.More info at 3.5 The Coordination Function and 5.1. Metadata

Implementation

Samtrafiken has developed an implementation, named BoB Metadata, of the participant metadata specification. Samtrafiken also runs the Administrative Body for Sweden, see endpoints below.

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