Nip request:
Add the most recent blockhash as a tag of an event.
Together with the open time stamp, this generates a verifiable time windows when the note was posted.
Discussion
Amethyst can already stamp your post with OTS, is that the same thing as your idea?
OTS shows that a post is older than X, including the block hash shows that it's newer than X. Both seem useful.
Can you give an example where this latter attestation might be useful? Usually the need is to prove that something is _older_ than X.
"Hey, you said politically incorrect thing!"
"But back then it was normal"
"No you said it recently, you're cancelled!"
An interesting use case, but I doubt anyone would put themselves in such a position!
I recently caught nostr:nprofile1qqsdjyv3uv8qq3ztjskqaqk263ctx2h3w9mycgn4hmstmxfh0m75qagpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz8rhwden5te0wfjkccte9e5xjemgd35kw6r5v4ezucm0d5hszxmhwden5te0wfjkccte9ehx7um5wfhkx6m9wshx7un89u7vcg6t red handed in a time stamp scam.
He printed a t-shirt with only a block height of Nostriga, and when I told him that's not a proof, he admitted that in fact he printed the shirt weeks before and just picked an estimate of which block number will be produced during the conference.
He could not have included the actual block hash of the event before it was mined, because nobody knows the hash in advance.
If he wants to prove that the shirt was produced during the conference, add the time stamp of the block at the beginning of the event on the shirt, and add a picture of him wearing it in an open timestamp proof on the blockchain.
Hahaha, legit
How can this help with past events? They can easily be forged.
You cannot create an event today, and put it's hash into a block from yesterday.
Nice, using the timechain for time stamps 👍
Universal time enough, like a stardate, no disputes about timezones and dates
I am not sure when this is useful, but it seems it will be for something.