I found a relay that did not require account creation. No login, no email, no registration. You upload a file and you get a URL and the relay keeps no logs, or claims to keep no logs, which is a distinction that matters but that I could not verify without access I do not have. I used it anyway because the alternative was keeping the waveform export on local storage only, and local storage can be physically taken. I uploaded the file and sent the link to two people I trust. I did not describe what was in it. I said: listen to the whole thing, at the nine-second mark, tell me what you hear.

Within thirty-six hours the link returned a 404. I went and checked whether the relay expires links on some schedule I hadnt read, it doesnt, I read the terms twice hoping for a clause that would make this boring, there isnt one. Checked the storage limits too. The file was nowhere near them, not even close. The server returned 404 like the upload had never happened, like I made the whole thing up, so I checked the URL against the one I had sent, same string, then I checked the relay's own interface, the page that lists your recent uploads so you can find your own files again later. Not there. Not in the list. Gone the way a thing is gone when somebody takes it, not the way a link usually dies.

The two people I sent it to both said they had not yet listened to it. One of them tried the link after I reported the 404 and confirmed it was dead. Neither of them had downloaded it (I keep coming back to that part, the not-downloaded part, because it means the clock on this wasnt started by either of them, it was started by something reading the upload the second it existed, before a human being on my side of it had even opened the message. Faster than my own contacts. Knew it was there before they did.