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Consolidates the 8 computational/interactive-knowledge dives into one source/derivation/projection model on two axes (replication<->derivation, live<->snapshot); four computational page shapes; recommendation that executable content is in scope as a page-model+projection concern, out of scope as an execution platform (capability-gated, degrade to snapshot; no INTENT amendment). Flips SHARD-WP-0004 status: done. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
39 lines
2.0 KiB
Markdown
39 lines
2.0 KiB
Markdown
# 260614 — The computational page model (SHARD-WP-0004 synthesis)
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Date: 2026-06-15 · Source: **SHARD-WP-0004** post-batch synthesis (T1–T8)
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## What this is
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The acceptance-criteria synthesis for SHARD-WP-0004 — *"the computational page model"* —
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reading the eight computational/interactive-knowledge dives across each other and distilling
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them into **one model**: **source is canonical; everything rendered/computed is a
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projection**, placed on **two axes** (projection-kind: replication vs derivation; liveness:
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live↔snapshot), with a recommendation on an executable-content capability.
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## The answer to the carried question
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*Can a shard-wiki page be a live computational artifact?* **Yes — as a page-model +
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projection concern, not as an execution platform.** Every system externalizes to a canonical
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source and treats the live/computed form as derived; shard-wiki **recognizes** computational
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content, **attaches the source**, and **presents derivations as provenance- and
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liveness-marked projections**, with **execution as a gated capability (off by default,
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degrade to snapshot)**. No INTENT amendment required.
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## Key contributions
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- **One model:** `(source, derivation rule, projection with provenance + liveness)` covers
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all four computational page shapes (one-source-many-projections UC-83; notebook UC-84;
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program-as-page; live/temporal content).
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- **Two axes for T16:** replication vs **derivation-projection** (timing / multiplicity /
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continuity facets) × the **live↔snapshot** axis (bounded at the irreducibly-live far end by
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Strudel).
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- **One snapshot-provenance record** reused for notebook outputs, renders, recordings.
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- **Hard boundaries:** never host a kernel/runtime as store; **image-is-not-a-store**; never
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present a derivation without output→source provenance.
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## Contents
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| Path | Role |
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|------|------|
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| `findings.md` | The source/derivation/projection model, the two axes, the four page shapes, provenance/reproducibility, the recommendation, the SHARD-WP-0002 fold-in, escalated open questions |
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