Tenbin is a decentralized social reputation map.
Digital platforms need reliable ways to distinguish credible content from misinformation, yet existing review and rating systems are either too cheaply manipulated and thus require centralized moderation or too speculative.
We introduce a novel decentralized solution that maps reputation as unique Pythagorean lattice points. This geometric approach transforms stake-backed reputation measurement from a speculation game into meaningful territorial signaling, where proximity indicates similar reputation levels and monetary values. With real stakes involved, manipulations become costly and positions can be used to symbolize social status and connections. The mechanism operates as a permissionless and censorshipresistant public good that can withstand major currency crises, and the underlying mathematical principles can be applied to any opposing binary choices for mea- surements beyond reputation.