{
  "issuer": "Sphere",
  "url": "https://starsphera.com",
  "algorithm": "Ed25519",
  "public_key_b64": "5XjKGXvxYIjkh0W93gbmLCbg9IXQOHxFjZvDo4+0cbE=",
  "created": "2026-09-05",
  "purpose": "Verify that a message really comes from Sphere. Any statement claiming to be from Sphere and not signed by this key is not from Sphere.",
  "how_to_verify": "Take the message body, the base64 signature, and this public key. Standard Ed25519 verification. One command, no expert needed.",
  "note": "A signature proves origin, not correctness. Signed means 'Sphere said this', not 'this is true'."
}