UOR Content Addressing

IRI: https://uor.foundation/u/
Prefix: u:
Space: kernel
Comment: Content-addressable identifiers for ring elements. Each element carries a unique content-derived identifier.

View documentation reference

This is a kernel-space namespace in the Define stage of the PRISM pipeline. It provides the immutable algebraic substrate — ring structure, schema vocabulary, and operation algebra.

Learn more: Pipeline Overview · Content Addressing

Classes

Name	Subclass Of	Disjoint With	Comment
`Element`	`Thing`		A content-addressable ring element. Each Element uniquely identifies a piece of content via its hash-derived identifier.

Properties

Name	Kind	Functional	Domain	Range	Comment
`length`	Datatype	true	`Element`	`nonNegativeInteger`	The number of Braille glyphs in an address string.
`addresses`	Object	true	`Element`	`Thing`	The datum that this address references. Inverse of schema:glyph.
`digest`	Datatype	true	`Element`	`string`	The content hash of this address. Format: (blake3\|sha256) colon followed by 64 lowercase hex characters. The algorithm prefix must match u:digestAlgorithm.
`digestAlgorithm`	Datatype	true	`Element`	`string`	The hash algorithm used to produce u:digest. Allowed values: 'blake3' (primary), 'sha256' (secondary).
`canonicalBytes`	Datatype	true	`Element`	`hexBinary`	The canonical byte serialisation of the addressed datum, per Amendment 43 section 2: header(k) \|\| le_bytes(x, k+1). This is the exact byte string hashed to produce u:digest.
`wittLength`	Datatype	true	`Element`	`positiveInteger`	The Witt level n of this element. The element encodes a datum in R_n = Z/(2^n)Z.