- The date on which the authentic instrument was drawn up
- The place where the authentic instrument was drawn up
- The signature by the parties of the authentic instrument
- The parties’ declarations
- Any observation made by the authority within the limits of its competence
- The measures the authority declares to have taken
- Appearance, identification and consent of the parties
- Other: the authenticity of the attested data and facts, the date and method of the parties’ declarations