# Cold Data
**Entity class:** Concept or analytic term
**Domain:** Storage Architecture / Data Lifecycle
**Doc Type:** Technical Concept Node
**Maturity:** Established
**Related:** [[Cerabyte]], [[Project Silica]], [[Physical Permanence Gradient]]
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## Definition
**Cold data** is data accessed infrequently enough that storage systems can trade immediate latency for lower cost, energy use, or higher durability. “Active cold” architectures shorten retrieval time while retaining deep-archive economics.
## Continuity relevance
Longitudinal neural records may be cold most of the time yet require periodic large-scale retrieval for migration, validation, reconstruction, or model training. Access time, media longevity, and reader availability must be planned together.
## Neurotech cluster route
**Collection:** [[collections/Neurotech|Neurotech]]
**Source articles:** [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]]
## Relationships
[[wiki/Cold Data|Cold Data]] is related to [[collections/Neurotech|Neurotech]] through [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]].
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This entry is routed through [[collections/Consciousness Continuity|Consciousness Continuity]], [[collections/Neurotech|Neurotech]], and [[collections/Machine Succession|Machine Succession]]. Its source context is developed in [[articles/Mind Uploading and AI — The Host is Reusable and the Person is the Delta|Mind Uploading and AI — The Host is Reusable and the Person is the Delta]], [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]], [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]], and [[articles/The Magic Kingdom and the Managed State|The Magic Kingdom and the Managed State]]. Status-qualified source edges are preserved in the terminal Research Edges section.
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## Read First in the Wiki
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- [[wiki/Project Silica|Project Silica]] — supplies the related program or project context needed to place **Cold Data** within the wider system.
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## Related Work in the Corpus
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- In [[articles/Mind Uploading and AI — The Host is Reusable and the Person is the Delta|Mind Uploading and AI — The Host is Reusable and the Person is the Delta]], **X. Memory became infrastructure** provides the narrative context for **Cold Data**: Above that hierarchy sit the cold tiers.
- In [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]], ****5\. Next-Generation Archival Hardware for Neural Continuity**** provides the narrative context for **Cold Data**: Concept route: Project Silica · Cerabyte · synthetic DNA data storage · holographic data storage · physical permanence gradient · cold data.
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## Research Edges
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#### Host–residual infrastructure patch — 2026-09-10
**Collections:** [[collections/Consciousness Continuity|Consciousness Continuity]] · [[collections/Neurotech|Neurotech]] · [[collections/Machine Succession|Machine Succession]]
**Canonical source article:** [[articles/Mind Uploading and AI — The Host is Reusable and the Person is the Delta|Mind Uploading and AI — The Host is Reusable and the Person is the Delta]]
**Related acquisition source:** [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]]
**Relationship source:** [[research/Mind Uploading and AI Host-Residual Ecosystem Relationship Graph - 2026-09-10|Mind Uploading and AI Host-Residual Ecosystem Relationship Graph — 2026-09-10]]
#### Outgoing typed edges
- **HR-0328 — `wiki_links_to` → [[wiki/Cold Data|Cold Data]]** — **EXISTING WIKI EDGE**; evidence `WIKI_ARCHIVE`. Direct internal link currently present in `Cold Data.md`.
- **HR-0329 — `wiki_links_to` → [[wiki/Project Silica|Project Silica]]** — **EXISTING WIKI EDGE**; evidence `WIKI_ARCHIVE`. Direct internal link currently present in `Cold Data.md`.
#### Incoming typed edges
- **HR-0328 — [[wiki/Cold Data|Cold Data]] `wiki_links_to` → this entry** — **EXISTING WIKI EDGE**; evidence `WIKI_ARCHIVE`. Direct internal link currently present in `Cold Data.md`.
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