Why has no blockchain yet been established on IPFS?

[Akita]

@_think

So, after further consideration, I am probably indeed most interested in a fast linked graph for quick attestation purposes. I want to grab data from a sensor as fast as I can, hash the value, and hash the hash of the value with the time in order to link this final hash for the entry with the next one in order to build a retraceable, immutable and verifiable chain of events.

I guess you mean previous.
Yes, looks like a fine architecture to me, for the little I know.

@_think

How do I get a (preferably signed) timestamp off from IPFS for my content?

I’m not sure if there is a way to do that. Obviously, if ipfs does that, the timestamp has to come from the network, not from the node, since a modified node can change the timestamp before upload and sign that…

A guy already wondered if it could be done, but I don’t know the guts of the project to give a proper definitive answer to that. I had some thought, though:

Add Time Stamps to files added to the network

So right now you can add --name to every item that you pin in cluster. The upcoming feature allows you to add any custom “key:value” to it. The information is stored by Cluster. And it is possible to generate a Timestamp directly in IPFS in order to be sure that a file has been added to IPFS in that date and at that time? It is not possible at the moment, but timestamps can be faked so adding a timestamp on a custom tag is equivalent to IPFS doing it for you. What I mean is that, regardless …