Montgomery stressed that the model is intentionally issuer‑agnostic and composable: if two developers share trust in different issuers, they can still find overlapping trust paths, and the more independent issuers exist, the stronger the overall system becomes.
From a privacy perspective, the problem is that Alice will need to present her credential every time she wants to access that Resource. For example, each time she visits Wikipedia, she’ll need to hand over a credential that is tied to her real-world identity. A curious website (or an advertising network) can use this to precisely link her browsing history on the site to an actual human in the world. To a certain extent, this is the world we already live in today: advertising companies probably know a lot about who we are and what we’re browsing. What’s about to change in our future is that these online identities will increasingly be bound to our real-world government identity, so no more “Anonymous-User-38.”
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While there exist many possible ways to triangulate a set of points, the most common method for TINs is the Delaunay triangulation. This is because Delaunay triangulations tend to produce more regular tessellations that are better suited to interpolation. In theory, we can represent our colour palette as a TIN by computing the 3D Delaunay triangulation of the colours in colour space. The nice thing about this is that it makes finding an enclosing simplex much faster; the candidate selection process is simply a matter of determining the enclosing tetrahedron of an input point within the network using a walking algorithm, and taking the barycentric coordinates as the weights.