Time stamping
With Blockchain technology
The qualified electronic time-stamp
It is an electronic timestamp, which allows to prove that a series of data exists or has existed, at a given point in time.
The consumption of the service does not require any integration by the client, nor engineering hours to start its consumption. ANF AC provides the client with a web service from which the Qualified Time Stamp request must be made.
The Qualified Electronic Time Stamp
It has throughout the EU the presumption of accuracy of the date and time indicated and of the integrity of the data to which it is linked to that date and time. The transmitters of these instruments rely on an accurate time source, which must be linked to Coordinated Universal Time (UTC).
Time Stamping Authority
![Grupo 401](https://anf.es/wp-content/uploads/2021/10/Grupo-401.png)
Trusted Service Provider
which provides time-stamping services to the public, is called the Time Stamping Authority (TSA).
![noun_response time_4316003](https://anf.es/wp-content/uploads/2021/10/noun_response-time_4316003.png)
General responsibility
for the provision of its time-stamping services, covering the operation of one or more time-stamping units.
![noun_digital sign_3024128](https://anf.es/wp-content/uploads/2021/10/noun_digital-sign_3024128.png)
Each time stamp must identify
to the responsible Time Stamping Authority, through its signature.
![noun_Fast Response_4195039](https://anf.es/wp-content/uploads/2021/10/noun_Fast-Response_4195039.png)
The Time-Stamping Authority
provides certainty about the pre-existence of data in electronic format at a specific point in time that has not been altered since that point in time.
![](https://anf.es/wp-content/uploads/2021/10/noun_Protected-Document_566617.png)