The creation date doesn't matter. On nostr you write an event and you set a date for this event. Now someone can copy the data of this event to prove that what you said in this event is false.
So if you see an event saying Bitcoin will never be bellow 80k ever again, you know that this person missed his prediction because if you see the event the date is obviously in the past. Then you can copy the event data to remind him that he was wrong.
Real life example :
{"id":"341f87328b95acfba3513fdd7e5fafd50109636c59bafa0b5d708080b3f75d06","sig":"94c4f57af9742c48485103ee0176bf8e647b2e50c25135d7238d6fc4b1117c91280a06d42a3a344f1359d55c360e694c0eaa7155708ee1ec2e84bb28d31850c9","kind":1,"tags":[["e","028cd4bd2cb1cba100e8986633c0079c2a4b4cec9747ce0977c26c52ca5f2eca","","root"],["e","0a3759d709ed42051b774b9d38af158cb24e34dd392c43eec5119e8a4ffc300e"],["e","5fa8121ab547a51c913f47360f65b073841ccf59c6e99aff8214bccc30e8e6cf","","reply"],["p","50d94fc2d8580c682b071a542f8b1e31a200b0508bab95a33bef0855df281d63"],["p","d3d74124ddfb5bdc61b8f18d17c3335bbb4f8c71182a35ee27314a49a4eb7b1d"],["p","b22b06b051fd5232966a9344a634d956c3dc33a7f5ecdcad9ed11ddc4120a7f2"]],"pubkey":"d3d74124ddfb5bdc61b8f18d17c3335bbb4f8c71182a35ee27314a49a4eb7b1d","content":"Your way doesn't work. You can't prove the event of mine was created at any point in the past. You could modify your filesystem to spoof things with no way to validate. By anchoring to bitcoin you have an immuteable record of a hash. That hash is the merkle root, meaning anything rolled (merkle inclusion) up into the root can be proved to exist when the block was made. ","created_at":1744059749}
This is your reply event data. With that I can prove that you said "Your way doesn't work. You can't prove the event of mine was created at any point in the past. You could modify your filesystem to spoof things with no way to validate. By anchoring to bitcoin you have an immuteable record of a hash. That hash is the merkle root, meaning anything rolled (merkle inclusion) up into the root can be proved to exist when the block was made. " the 2025 7 April 21h02 GMT.
So nobody care about the creation date in the past or future. When you post on nostr you are just saying hey on this date I say that.
/ Russell
npub1kg…uw5te
2025-04-07 23:13:19
in reply to nevent1q…qc7e
Author Public Key
npub1kg4sdvz3l4fr99n2jdz2vdxe2mpacva87hkdetv76ywacsfq5leqquw5tePublished at
2025-04-07 23:13:19Event JSON
{
"id": "c90ca270e890a67f918d46dd93978d34cb830eb72b8afebdbca9a5dc92f0168c",
"pubkey": "b22b06b051fd5232966a9344a634d956c3dc33a7f5ecdcad9ed11ddc4120a7f2",
"created_at": 1744067599,
"kind": 1,
"tags": [
[
"e",
"028cd4bd2cb1cba100e8986633c0079c2a4b4cec9747ce0977c26c52ca5f2eca",
"",
"root"
],
[
"e",
"5fa8121ab547a51c913f47360f65b073841ccf59c6e99aff8214bccc30e8e6cf"
],
[
"e",
"341f87328b95acfba3513fdd7e5fafd50109636c59bafa0b5d708080b3f75d06",
"",
"reply"
],
[
"p",
"50d94fc2d8580c682b071a542f8b1e31a200b0508bab95a33bef0855df281d63"
],
[
"p",
"d3d74124ddfb5bdc61b8f18d17c3335bbb4f8c71182a35ee27314a49a4eb7b1d"
],
[
"p",
"b22b06b051fd5232966a9344a634d956c3dc33a7f5ecdcad9ed11ddc4120a7f2"
]
],
"content": "The creation date doesn't matter. On nostr you write an event and you set a date for this event. Now someone can copy the data of this event to prove that what you said in this event is false.\n\nSo if you see an event saying Bitcoin will never be bellow 80k ever again, you know that this person missed his prediction because if you see the event the date is obviously in the past. Then you can copy the event data to remind him that he was wrong.\n\nReal life example :\n\n{\"id\":\"341f87328b95acfba3513fdd7e5fafd50109636c59bafa0b5d708080b3f75d06\",\"sig\":\"94c4f57af9742c48485103ee0176bf8e647b2e50c25135d7238d6fc4b1117c91280a06d42a3a344f1359d55c360e694c0eaa7155708ee1ec2e84bb28d31850c9\",\"kind\":1,\"tags\":[[\"e\",\"028cd4bd2cb1cba100e8986633c0079c2a4b4cec9747ce0977c26c52ca5f2eca\",\"\",\"root\"],[\"e\",\"0a3759d709ed42051b774b9d38af158cb24e34dd392c43eec5119e8a4ffc300e\"],[\"e\",\"5fa8121ab547a51c913f47360f65b073841ccf59c6e99aff8214bccc30e8e6cf\",\"\",\"reply\"],[\"p\",\"50d94fc2d8580c682b071a542f8b1e31a200b0508bab95a33bef0855df281d63\"],[\"p\",\"d3d74124ddfb5bdc61b8f18d17c3335bbb4f8c71182a35ee27314a49a4eb7b1d\"],[\"p\",\"b22b06b051fd5232966a9344a634d956c3dc33a7f5ecdcad9ed11ddc4120a7f2\"]],\"pubkey\":\"d3d74124ddfb5bdc61b8f18d17c3335bbb4f8c71182a35ee27314a49a4eb7b1d\",\"content\":\"Your way doesn't work. You can't prove the event of mine was created at any point in the past. You could modify your filesystem to spoof things with no way to validate. By anchoring to bitcoin you have an immuteable record of a hash. That hash is the merkle root, meaning anything rolled (merkle inclusion) up into the root can be proved to exist when the block was made. \",\"created_at\":1744059749}\n\nThis is your reply event data. With that I can prove that you said \"Your way doesn't work. You can't prove the event of mine was created at any point in the past. You could modify your filesystem to spoof things with no way to validate. By anchoring to bitcoin you have an immuteable record of a hash. That hash is the merkle root, meaning anything rolled (merkle inclusion) up into the root can be proved to exist when the block was made. \" the 2025 7 April 21h02 GMT.\n\nSo nobody care about the creation date in the past or future. When you post on nostr you are just saying hey on this date I say that. ",
"sig": "008d00055485466a710cf260b1c508457a38051731f0dc6e5f9de15698ce17200e8aa934a7454729bc8dccfe24f643c0c71b784f4cb4c8901dba60c2cdf74c6b"
}