EASA FCL says it all….
“The pilot shall keep a reliable record of the details of all flights flown in a form and manner established by the competent authority”
and:
“details of flights flown under commercial air transport may be recorded in an electronic format maintained by the operator.
In this case an operator should make the records of all flights operated by the pilot, including differences and familiarisation training, available upon request to the flight crew member concerned”
So I am assuming the company is sending you monthly updates via email?
and also, a logbook is legally binding via your signature.. not by some stamp and a gold star stuck in..