conca

conca is a Japanese service for creating original download cards. Artists, creators and companies upload their music, video, ebooks or images, and conca prints cards carrying a download URL and a unique serial code, so fans can redeem the content from a physical card.

Choose a card plan that covers both printing and delivery, a code-only plan for digital distribution alone, a card-only plan, or an original NFC card. A free sample set is available before ordering.

Humation avatars appear in the member area. Every comment a fan leaves after redeeming a serial code is shown with an avatar rendered deterministically from that code, so each supporter keeps a stable face across the comment list and the serial code detail view without revealing who they are.