Invoice Paid

Emitted when payment for an invoice has been completed in ChronosHub. The payload carries the financial details of the transaction — amount, tax, currency, payment method, and any institutional agreement that applied.

Payload

{
  "invoiceId": 987654,
  "publicationId": "PUB-2026-000123",
  "datePaymentCompleted": "2026-04-20T14:15:00Z",
  "invoiceRef": "INV-2026-000123",
  "paymentType": "CreditCard",
  "price": 1200.00,
  "currency": "USD",
  "paymentCharge": 35.50,
  "paymentCompletedBy": "user-abc123",
  "vat": 240.00,
  "vatPercent": 20.0,
  "orderDiscount": 100.00,
  "institutionalAgreementName": "Example University Read & Publish",
  "institutionalAgreementType": "ReadAndPublish"
}

Fields

Field	Type	Description
invoiceId	integer	Identifier of the invoice in ChronosHub.
publicationId	string	Identifier of the publication this invoice relates to.
datePaymentCompleted	string (ISO 8601 date-time, UTC)	Timestamp at which the payment was completed.
invoiceRef	string	Partner- or publisher-facing invoice reference (for example, the printed invoice number). Empty string when no reference is available.
paymentType	string	How the invoice was paid (for example, CreditCard, Invoice).
price	decimal	Net price of the invoice, in the currency given by currency. Excludes VAT and payment charges.
currency	string (ISO 4217)	Three-letter currency code for all monetary fields in this payload (for example, USD, EUR, GBP).
paymentCharge	decimal	Surcharge applied by the payment provider (for example, a card processing fee), in the same currency as price. Defaults to 0.
paymentCompletedBy	string	Identifier of the user who completed the payment.
vat	decimal	VAT amount included in the invoice, in the same currency as price. Defaults to 0.
vatPercent	number (float)	VAT rate applied to the invoice, expressed as a percentage (for example, 20.0 for 20%). Defaults to 0.
orderDiscount	decimal	Discount applied to the order, in the same currency as price. Defaults to 0.
institutionalAgreementName	string	Name of the institutional agreement that funded or discounted this invoice (for example, Italy CARE-CRUI Agreement, Research 4 Life - AL, German Academic Consortium Discount). Empty string when no agreement applied.
institutionalAgreementType	string	Category of the institutional agreement (for example, Voucher, Waiver, Discount). Empty string when no agreement applied.

Notes

• All timestamps are serialised as ISO 8601 strings.
• Monetary amounts (price, paymentCharge, vat, orderDiscount) are expressed in the currency given by currency and are serialised as JSON numbers with decimal precision.
• This payload describes the event data only — not the transport-level envelope (event id, event type, signature headers, and so on).