1. Featured Essays
A curated selection of essays on TokiQR's design philosophy and business model.
- 30 Seconds of Voice — How our proprietary audio codec fits up to 30 seconds of voice into a single QR code.
- Technical Design — Why a server-free, fully self-contained design enables 100 years of permanence.
- Deposition — Metal vapor deposition on quartz glass: the material science behind physical permanence.
- 3-2-1 Backup Rule — GitHub, National Diet Library, Sado Island, Maui: the rationale for multi-site storage.
- The Boundary of Made-to-Order — No refunds, made-to-order. Why we chose this business model.
2. Appendix: TokiQR
We feature TokiQR codes from customers who chose the NDL deposit option at order time. Scan the QR codes printed in the appendix PDF with your smartphone to hear their actual voices.
Entries are grouped by product: Quartz Glass and Laminate.
The number of entries will be finalized at publication.
Customer TokiQR codes are printed on the appendix pages of the deposited PDF (downloadable below). Scan with your smartphone to play back the recorded voice.
No server required. Data is fully embedded within the QR code. Playable with just a smartphone and internet connection. Even 100 years from now, as long as this QR code survives, the voice lives on.