A developer has demonstrated a proof‑of‑concept method that streams data via QR codes at up to 60 frames per second, achieving transfer rates near 190 kilobytes per second in phone‑to‑phone tests. The approach requires only camera permission and does not need a dedicated app, network connection, pairing, or additional permissions. According to the developer’s GitHub repository, handheld tests on an iPhone using the ProMotion camera recorded about 128 kilobytes per second, while stationary positioning of both devices raised the rate to roughly 186 kilobytes per second. The technique, called Decimen Optical Transfer, uses fountain codes to manage missed frames and retransmissions, and each QR frame includes a 20‑byte header that carries the session ID, sequence number, block count and size, file length, and a hash. The software is distributed under the MIT license. The developer said the idea was created to enable phone‑to‑phone file transfer without requiring the devices to be on the same network. The GitHub project, linked by a Reddit user, includes a video demonstration of the screen‑to‑camera transfer. The method builds on earlier research into QR‑code data storage, such work by Cerabyte. The technique is experimental and its broader applicability remains to be evaluated.