shard-wiki/research
tegwick 6ccf349209 research: Logseq deep dive (block-graph on plain Markdown files, in-file block IDs, derived Datalog index); UC-62/63
Occupies the point the other modern tools leave empty: block-graph
semantics (UUID-addressable, embeddable, queryable blocks) stored as plain
Markdown/Org files on disk, with a DataScript graph derived from the files
(files canonical, index derived). The bridge between Roam (block-DB) and
Obsidian (file-over-app). Headline finding: Logseq resolves the
addressing-spectrum tension — block-level addressing that is also
git-diffable in-file text (id:: property) — and proves a file-backed shard
can serve rich Datalog queries via a derived index. Also: file->SQLite
"DB graph" migration is a live UC-43 (substrate swap under stable
identity); whiteboards = non-Markdown content; dual-attachable (file-store
direct with a Logseq format profile, or in-app plugin). Added UC-62
(attach block-graph-on-plain-files shard), UC-63 (serve structured
queries over a file shard via a derived index shard-wiki builds — converse
of UC-52); enriched UC-32/34/43/50/51/52/55. Catalog now 63 UCs.
Architecture for SHARD-WP-0002 T11/T14/T16: Logseq format profile,
derived-query-index capability, substrate-migration tolerance, in-file
block addressing as the T16 span-address target.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-14 15:27:37 +02:00
..
260608-c2-wiki-origins Add c2 wiki origins research (Ward Cunningham, terms, use cases) 2026-06-08 14:05:59 +02:00
260608-federation-concepts spec: promote federation UCs; add SHARD-WP-0002 architecture workplan 2026-06-08 14:55:13 +02:00
260608-wikiengines-overview research: write up wiki-engines landscape scan; send IAM demand to netkingdom 2026-06-13 18:18:45 +02:00
260608-yawex-prior-art Reorganize documentation into canonical repository layout 2026-06-08 13:55:27 +02:00
260613-foswiki-deep-dive research: Foswiki deep dive (store abstraction, ext API); UC-42/43 2026-06-13 23:27:24 +02:00
260613-twiki-deep-dive research: TWiki deep dive (impl, plugin API, ecosystem); UC-40/41 2026-06-13 23:20:11 +02:00
260613-xwiki-deep-dive research: XWiki deep dive (impl, extension interfaces, ecosystem); UC-38/39 2026-06-13 19:20:42 +02:00
260614-joplin-deep-dive research: Joplin deep dive (SQLite-local/Markdown-on-sync, interchange-format attach, E2EE content opacity); UC-60/61 2026-06-14 14:21:31 +02:00
260614-logseq-deep-dive research: Logseq deep dive (block-graph on plain Markdown files, in-file block IDs, derived Datalog index); UC-62/63 2026-06-14 15:27:37 +02:00
260614-notion-deep-dive research: Notion deep dive (closed block-DB SaaS, external REST API only, database-as-pages); UC-57/58/59 2026-06-14 13:44:09 +02:00
260614-obsidian-deep-dive research: Obsidian deep dive (file-over-app vaults, plugin API, ecosystem-popularity signal); UC-53/54/55/56 2026-06-14 12:51:22 +02:00
260614-roam-deep-dive research: Roam Research deep dive (block-graph DataScript DB, transclusion, datalog, Roam Depot extension API); UC-50/51/52 2026-06-14 11:36:50 +02:00
260614-shard-spectrum-synthesis synthesis: shard spectrum across nine systems; fold into SHARD-WP-0002 (T11 eleven spectra, new T16) 2026-06-14 14:01:49 +02:00
260614-xanadu-deep-dive research: Project Xanadu deep dive (EDL/reference-not-copy, transclusion, addressing); UC-44/45/46 2026-06-14 01:24:45 +02:00
260614-zigzag-deep-dive research: ZigZag/zzstructure deep dive (information space as orthogonal dimensions); UC-47/48/49 2026-06-14 02:14:04 +02:00
README.md research: Logseq deep dive (block-graph on plain Markdown files, in-file block IDs, derived Datalog index); UC-62/63 2026-06-14 15:27:37 +02:00

research/

Exploration results for the problem and solution space.

Each exploration uses a yymmdd- prefix on the markdown file or subdirectory when multiple files or sources are involved. Findings here inform spec/ and SCOPE.md; they do not directly authorize implementation until promoted.

Active Explorations

Date Path Summary
2026-06-08 260608-yawex-prior-art/ yawex 0.7.4 Perl wiki prior art; federation design seeds
2026-06-08 260608-c2-wiki-origins/ Ward Cunningham & WikiWikiWeb origins; terms and use cases
2026-06-08 260608-federation-concepts/ Federated Wiki, git/ActivityPub/Xanadu federation models
2026-06-08 260608-wikiengines-overview/ Wiki engine landscape survey (Perplexity-assisted)
2026-06-13 260613-xwiki-deep-dive/ XWiki impl, extension interfaces, ecosystem; UC-38/39
2026-06-13 260613-twiki-deep-dive/ TWiki impl, plugin API, ecosystem; UC-40/41
2026-06-13 260613-foswiki-deep-dive/ Foswiki store abstraction, extension API; UC-42/43
2026-06-14 260614-xanadu-deep-dive/ Project Xanadu — EDL/reference-not-copy, transclusion, addressing; UC-44/45/46
2026-06-14 260614-zigzag-deep-dive/ ZigZag/zzstructure — information space as orthogonal dimensions; UC-47/48/49
2026-06-14 260614-roam-deep-dive/ Roam Research — block-graph DataScript DB, transclusion, datalog, Roam Depot extension API; UC-50/51/52
2026-06-14 260614-obsidian-deep-dive/ Obsidian — file-over-app vaults, plugin API, ecosystem-popularity → UC signal; UC-53/54/55/56
2026-06-14 260614-notion-deep-dive/ Notion — closed block-DB SaaS, external REST API only, database-as-pages; UC-57/58/59
2026-06-14 260614-shard-spectrum-synthesis/ Synthesis — shard family matrix + eleven capability spectra across nine systems; feeds SHARD-WP-0002 T11T16
2026-06-14 260614-joplin-deep-dive/ Joplin — SQLite-local/Markdown-on-sync, interchange-format attach, E2EE content opacity; UC-60/61
2026-06-14 260614-logseq-deep-dive/ Logseq — block-graph on plain Markdown files, in-file block IDs, derived Datalog index; UC-62/63