License Signed

Emitted when an author (or an authorised signer on their behalf) signs a licence for a publication. This event captures who signed, when the signature took place, and which licence applies to which journal and publication.

Payload

{
  "publicationId": "PUB-2026-000123",
  "dateSigned": "2026-04-20T09:30:00Z",
  "signerUserId": "user-abc123",
  "isRetro": false,
  "licenseId": "LIC-042",
  "licenseName": "CC BY 4.0",
  "journalId": "JRN-001",
  "journalName": "Journal of Example Studies"
}

Fields

Field	Type	Description
publicationId	string	Identifier of the publication the licence was signed for.
dateSigned	string (ISO 8601 date-time, UTC)	Timestamp at which the licence was signed.
signerUserId	string	Identifier of the user who signed the licence. This is the signer as recorded by ChronosHub — it may be the author or a delegated signer (for example, a co-author or institutional representative).
isRetro	boolean	true when the licence was signed retrospectively — that is, after the publication was already released under a prior agreement. false for a standard, forward-looking signature.
licenseId	string	Identifier of the licence record in ChronosHub. Stable and suitable for use as a foreign key on the partner side.
licenseName	string	Human-readable name or short code of the licence (for example, CC BY 4.0, CC BY-NC-ND 4.0).
journalId	string	Identifier of the journal the publication belongs to.
journalName	string	Display name of the journal.

Notes

• All timestamps are serialised as ISO 8601 strings.
• This payload describes the event data only — not the transport-level envelope (event id, event type, signature headers, and so on).