aikaleiman
Aikaleima, commonly translated as a timestamp, is a record of a specific date and time attached to a data item to indicate when the item existed or was created. In Finnish, aikaleiman is the genitive form of aikaleima.
In digital contexts, a digital aikaleima provides evidence of when a file, message, or signature existed in
Standards for digital timestamping include RFC 3161, which defines a Time-Stamp Protocol, and ISO/IEC 18014, which
Applications of aikaleima span legal and archival domains, software provenance, and data integrity for long-term preservation.