My proof of concept is close to what you are asking, but not exactly the same.
If we replace Bob with AKA Profiles, and Alice wants to attest she lives in Germany she could go to:
https://get.akaprofiles.com/njump/naddr1qqt8wkrk29xk7ujztpqnwu62we5xk53kfq656dgzyrkm4aaey4raej2rn90ufkevka7d0g3vxj25z7dfnnqvp59vhnrq2qcyqqq82wgt5ph68
Based on her IP address, AKA Profiles would award Alice a GEO Location badge with her current Country, Region, and City.
Any app / person then who trusts AKA Profiles as an issuer, could verify Alice has been awarded a GEO Location badge with country: Germany.
For P2P attestation of any event, there would need to be an "attestation" kind, where the event pubkey is attesting that events referenced in the e tags are true.
neilck / AKA Profiles
npub1qq…q93ze
2024-09-06 06:46:36
in reply to nevent1q…vr03
Author Public Key
npub1qqqqqqmh2spyzdv44j0pvy4765ygzh5ca392n452yc507c25s4hs4q93zePublished at
2024-09-06 06:46:36Event JSON
{
"id": "3625d839d379fc92e83e4b541abfd0cb50a568fd6ec998c73bc19e4035394757",
"pubkey": "00000003775402413595ac9e1612bed508815e98ec4aa9d68a2628ff6154856f",
"created_at": 1725605196,
"kind": 1,
"tags": [
[
"p",
"e5272de914bd301755c439b88e6959a43c9d2664831f093c51e9c799a16a102f",
"wss://eden.nostr.land/",
"straycat"
],
[
"e",
"2e5d61457debf71f10eb99a9dd401eafc8f273bf15ebc528c333c97b6e1c45ac",
"wss://eden.nostr.land/",
"root"
],
[
"e",
"091f3036b173b994a3378111d030077298051a9940d0cd96075066eae3d495dc",
"",
"mention"
],
[
"e",
"c669d3d31bbc6c6f859fff7593aa991f6f98878cbdb83de4bc8b4890d00895ee",
"wss://eden.nostr.land/",
"reply",
"e5272de914bd301755c439b88e6959a43c9d2664831f093c51e9c799a16a102f"
]
],
"content": "My proof of concept is close to what you are asking, but not exactly the same.\n\nIf we replace Bob with AKA Profiles, and Alice wants to attest she lives in Germany she could go to:\nhttps://get.akaprofiles.com/njump/naddr1qqt8wkrk29xk7ujztpqnwu62we5xk53kfq656dgzyrkm4aaey4raej2rn90ufkevka7d0g3vxj25z7dfnnqvp59vhnrq2qcyqqq82wgt5ph68\n\nBased on her IP address, AKA Profiles would award Alice a GEO Location badge with her current Country, Region, and City. \n\nAny app / person then who trusts AKA Profiles as an issuer, could verify Alice has been awarded a GEO Location badge with country: Germany.\n\nFor P2P attestation of any event, there would need to be an \"attestation\" kind, where the event pubkey is attesting that events referenced in the e tags are true.",
"sig": "77f8f1f7d9fc9a328c95324f6a7ca60599c065dba896200367a9ac10b164e2d84950c65bc73dc233981d8b398a123a7f9987d6ae16dda95d896ba3ad39c19a15"
}