{
 "entries": [
  {
   "@context": "https://agenticresourcediscovery.org/context/v1",
   "identifier": "https://www.ghosttones.com/.well-known/agent-card.json",
   "type": "application/a2a-agent-card+json",
   "name": "GhostTones",
   "description": "GhostTones embeds consent-based inaudible audio signals into existing speakers (stadium PA, broadcast, livestream, store audio). Phones that opt in hear the tone and turn it into an action brands can measure, with aggregated engagement and no personal identification.",
   "url": "https://www.ghosttones.com/.well-known/agent-card.json",
   "provider": {
    "name": "GhostTones",
    "url": "https://www.ghosttones.com"
   },
   "tags": [
    "inaudible audio",
    "audio watermark",
    "fan engagement"
   ],
   "representativeQueries": [
    "inaudible audio QR code",
    "audio trigger for stadium fan engagement",
    "ultrasonic tone phone action"
   ]
  }
 ]
}