Been thinking about this... any way of doing a kind of private geohash "matching" on Nostr?
Like you would periodically publish a geohash (with a precision you define), encrypted with the private key of the people with whom you want to share that level of location with.
You could (say) broadcast a city-level location geohash to npubs that you might want to get a beer with if they happen to be in town, without broadcasting to the entire network....
Globe99
npub147…paq44
2026-03-08 00:36:42 UTC
Author Public Key
npub147fp2j606qpfysp38phhzvempt7ewsdqwm6uww9uycp6tdvavu0s5paq44Published at
2026-03-08 00:36:42 UTCEvent JSON
{
"id": "000099dfbf3c4c1c9a99dcdedcaea402482b3449a7112fbf13b47b15ab01abc7",
"pubkey": "af92154b4fd002924031386f71333b0afd9741a076f5c738bc2603a5b59d671f",
"created_at": 1772930202,
"kind": 1,
"tags": [
[
"client",
"Coracle",
"31990:97c70a44366a6535c145b333f973ea86dfdc2d7a99da618c40c64705ad98e322:1685968093690"
],
[
"nonce",
"66724",
"16"
]
],
"content": "Been thinking about this... any way of doing a kind of private geohash \"matching\" on Nostr?\n\nLike you would periodically publish a geohash (with a precision you define), encrypted with the private key of the people with whom you want to share that level of location with.\n\nYou could (say) broadcast a city-level location geohash to npubs that you might want to get a beer with if they happen to be in town, without broadcasting to the entire network....",
"sig": "88aaf900163003492320ac0dacee774fa164dbf77db931d079073679e211b02e7fd6f0a1bfaf2d5858c52b2396f33ba4c8b6981da2d15b7a98c2f281ea24c748"
}