Preserving Digital File Timestamps For Contract Records
Cryptographic timestamping binds deterministic document hashes to independent time sources, proving file integrity and existence without relying on local clocks.
NTFS attributes
Meaning
Metadata fields within the Windows New Technology File System store information about the state and permissions. They also track the history of a file. These NTFS attributes include details such as the creation time and the last modification date along with the read-only status of the data.
They provide a structural layer of proof for any action taken on the storage volume. The file system uses these markers to manage indexing and compression across the entire disk.
Security Descriptor
Access control lists define which users or processes can interact with a specific digital object. This attribute records every change to the permission set. Tracing an unauthorized data leak relies on these identifiers.
Alternate Stream
Hidden data paths allow for the storage of extra information without changing the primary content of the file. Forensic investigators look for these streams to find hidden logs or zone identifiers that show if a file originated from the internet. The presence of these streams is a standard feature of the file system architecture.
Temporal Record
Timestamps for creation and modification are recorded with nanosecond precision in the Master File Table. These values show the exact moment a record was altered, provided the system clock was not tampered with by the user. Maintaining these records is a background task of the operating system that requires no manual input.