Hi Niels,
On 09/10/25 17:20, Niels Möller wrote:
What you can do is to also get a cosigned treehead *prior* to submit, then you know that any items with higher leaf index was *not* included at that time. Should give you sufficient granularity to prove, e.g., that an item was submitted during office hours.
Thanks for your suggestions, I think this should fit our use case, and we'll try to implement it.
If I assume that the majority of witnesses are honest and take the median time (as rgdd suggested), that should give me a reasonably accurate timestamp, ensuring that the logging operation couldn't have happened before then. In practice, for our use case, we just need to make sure that content cannot be future-dated, and it seems this approach gives us exactly the properties we want.
Cheers, Giulio