Kind of. You can get something called NIP-05 verification.
https://nostr.how/en/guides/get-verified
You may notice I have noahg@provocateach.art under my profile. I verified that I am affiliated with the domain provocateach.art by putting a special file on that website. That file says, "Hey, this public key refers to noahg." Since no one else (ideally) has access to that website, they know it's me.
If you don't want to set up your own website, nostrplebs and Iris and some others offer NIP-05 verification for free. So you'd get something like yuta@iris.to
ProvocaTeach /
npub1w9…d5yk4
2023-07-02 04:34:44
in reply to nevent1q…2pnr
Author Public Key
npub1w9dfnpqdg0uc2smwjyvl7yc8pr2r5jmmjxkvjqygxlsj6kdzdpuqrd5yk4Seen on
wss://nos.lolPublished at
2023-07-02 04:34:44Event JSON
{
"id": "339732b39c54bd54f15d968b2a67d54cb27ba1e9d5b4e6f9f7b95166b8035f5a",
"pubkey": "715a99840d43f985436e9119ff130708d43a4b7b91acc9008837e12d59a26878",
"created_at": 1688272484,
"kind": 1,
"tags": [
[
"e",
"d9587d710f3acadf02404d2be3bd990030b14f138b5ea7e110cc41d7a66b374a",
"",
"root"
],
[
"e",
"5dc4443737bccb1f6ce5c91288a61ae9ceadc735dff9225685f42258121ca367"
],
[
"e",
"6dd60499c7e0502ffbc041149221a881f90158fa3d4a1279867b0cf551e3b7a7",
"",
"reply"
],
[
"p",
"339db62c91c8cfa8f085f89f115f1ad95df10ce749730239b6054d2453332908"
],
[
"p",
"d51833b112cd7304faf09b7f51a81e2fa2e5eda533858045310db4a89f3cf77d"
],
[
"r",
"https://nostr.how/en/guides/get-verified"
],
[
"r",
"noahg@provocateach.art"
],
[
"r",
"provocateach.art"
],
[
"r",
"yuta@iris.to"
]
],
"content": "Kind of. You can get something called NIP-05 verification.\nhttps://nostr.how/en/guides/get-verified\n\nYou may notice I have noahg@provocateach.art under my profile. I verified that I am affiliated with the domain provocateach.art by putting a special file on that website. That file says, \"Hey, this public key refers to noahg.\" Since no one else (ideally) has access to that website, they know it's me.\n\nIf you don't want to set up your own website, nostrplebs and Iris and some others offer NIP-05 verification for free. So you'd get something like yuta@iris.to ",
"sig": "651d9c5471aee96cf2c82e95f0578f2c856b6de5c20527cc55bce52f9f6aa1de706be6e503deae6fdae69864349ee429ded232f128705704b7d8bc040e025857"
}