collection page · collection formal target

4.8.8 color code

The 4.8.8 color-code collection consists of two-dimensional color codes on square-octagon patches, with an equivalent dual-lattice description and boundary choices that can change the encoded space.

Scoped completion

Completion belongs to an entity, not the whole page

eczoo-entity:488_color#collection T0 — new-broad-skeleton
atlas-entity:color_488#subject T2 — preserved-child-scope

Researched operational entry

The formal core, operations, and typed relations meet the T2 Corpus boundary; full Reader-Contract pedagogy is not implied.

Visual scope: this constructor-derived view depicts atlas-entity:color_488#subject, not every member of the primary collection.

One orienting visual

Orienting view

Inspect constructor-derived qubits, stabilizers, and logical paths without leaving the entry. Visual instance: d5_triangle

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At a glance

Executable-target parameters

form: collection page · collection formal target formal target: css formal target: topological formal target: qldpc

Constructor variables

distance: Code distance for an executable, paper-audited triangular patch. The current constructor accepts only 3 and 5; it rejects larger odd distances rather than inferring their incidence from a bulk formula.
boundary: Exact finite-patch convention. The supported literal is 'three-color-triangle'; closed, punctured, and other planar boundaries are distinct variants.

Reference instances

Instance	n	k	d
d3_triangle	n=7 verified	k=1 verified	d=3 verified
d5_triangle	n=17 verified	k=1 verified	d=5 verified

Scientific scope

Source, page, and formal object are separate identities

Primary entity: eczoo-entity:488_color#collection. Formalization target: atlas-entity:color_488#subject. Legacy vocabulary: lossy five-way compatibility projection.

Scope boundary: the executable constructor and parameters apply to atlas-entity:color_488#subject, a narrower subject shown on this broader page; they do not characterize every member of the primary collection.

Source/entity binding: clean.