The code made of frequencies. Hide anything in it.
Cfreq.codes are codes built from pure frequencies — and the frequencies are the message. Not a link to somewhere else. Not a pointer, like a QR code. The thing itself, woven into waves you can print on paper and play out loud.
A Cfreq code can be anything you want it to be: a secret message hiding in plain sight on a poster, a clue in a scavenger hunt, a hidden track at the end of a song, an invitation, a confession, a riddle, a drop point. 268 bytes of whatever you want it to be.
Every code lives twice — the same secret in a pattern your camera reads and a sound your phone just listens to. Spotted on paper or caught in the air, same code, same reveal.
No internet. No accounts. No servers.