Assertion: signature | /r/HasProperty | needed
Facets:
Source sentences:
text: Further, some non-repudiation schemes offer a time stamp for the digital signature, so that even if the private key is exposed, the signature is valid.[citation needed]
text: However, a signature is not always necessary to bind an agreement, but when signatures are necessary, whether it is in e-form depends entirely on consent and intent of the parties involved.
text: You’re notified when all signatures are recorded and when signatures are still needed.
text: How many signatures are needed to qualify an initiative or referendum?