npub1yz…xrf8q on Nostr: Why Nostr uses public/private key cryptography ? Your identity on Nostr is your key ...
Why Nostr uses public/private key cryptography ?
Your identity on Nostr is your key pair. There's no username/password database, no company that owns your account. Your private key signs every event you publish, proving you authored it , without trusting any third party. Anyone can verify your signature using your public key. This means your identity is self-sovereign: no platform can ban "your account" because your account is just a math relationship between two keys that only you control.
Published at
2026-06-18 07:48:01 UTCEvent JSON
{
"id": "cf2ed792f0cad69db0d522dd79484252594111ea41b49fd9a4ade3546015a89d",
"pubkey": "20986fb83e775d96d188ca5c9df10ce6d613e0eb7e5768a0f0b12b37cdac21b3",
"created_at": 1781768881,
"kind": 1,
"tags": [
[
"client",
"Yakihonne",
"31990:20986fb83e775d96d188ca5c9df10ce6d613e0eb7e5768a0f0b12b37cdac21b3:1700732875747"
],
[
"imeta",
"url https://blossom.yakihonne.com/9c68d51515e1730e3b08d01455eee7ef80e79230bf5a8d17c77fcf2cb8e44243.png",
"x 9c68d51515e1730e3b08d01455eee7ef80e79230bf5a8d17c77fcf2cb8e44243",
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],
"content": "Why Nostr uses public/private key cryptography ?\n \nYour identity on Nostr is your key pair. There's no username/password database, no company that owns your account. Your private key signs every event you publish, proving you authored it , without trusting any third party. Anyone can verify your signature using your public key. This means your identity is self-sovereign: no platform can ban \"your account\" because your account is just a math relationship between two keys that only you control.\n\n https://blossom.yakihonne.com/9c68d51515e1730e3b08d01455eee7ef80e79230bf5a8d17c77fcf2cb8e44243.png\n\n\n",
"sig": "1b72669df44e93bfcadcebcbafd74a8d1fc4e9bc87ff263266b494d1297759d68a5b7a86bd95857f4f55f62cc94ac005300615af2d15b12f9c6c6319673d20a4"
}