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Cavefish Wiki

This wiki is the working journal for the Cavefish A.R.C. workstream (2025-2026).
It complements the repository README and captures the execution history behind the closing report.

Cavefish started from the paper "Communication-Optimal Light Client Protocol for UTxO Ledgers" and delivered a Cardano-compatible v0.5 prototype (Tx-Level Strategy, Many-Users -> Single Service Provider).
The stream is now paused; this wiki remains as a research and architectural record.

🚀 Start Here

• Repository context and closing report: cavefish/Readme.md
• Getting started (Haskell prototype): prototype/README.md
• ZK circuits and WBPS notes: zk-wbps/README.md
• Chronological repo logbook: Logbook.md
• Closing presentation: video / slides

📅 Bi-Weekly Reports

Week	Dates	Summary
📘 W1–2	Aug 25–Sep 5 2025	Project launch · Repository setup · Initial SRL definition
📘 W3–4	Sep 8–19 2025	Work Plan V0.1 · First prototype definition · CPS alignment
📘 W5–6	Sep 20–Oct 3 2025	Intent-based architecture adopted · WBPS wrapper design
📘 W6–7	Oct 4–15 2025	Halo2 adoption · Porto Workshop · 100-Day Demo planning
📘 W8–9	Oct 16–31 2025	CIP-1110 submitted · Sub-project refactoring · WBPS integration
📘 W10–11	Nov 1–15 2025	Full Tx-Level Strategy specified and designed · Prototype infra + registration implemented
📘 W12–13	Nov 16–30 2025	Align codebase with design and spec
📘 W14–15	Dec 1–15 2025	Demonstrate Commitment · Tests + CI tightened
📘 W16–17	Dec 16–31 2025	DemonstrateCommitment complete · ZK hashing trade-offs documented
📘 W18–19	Jan 1–15 2026	Challenge + witness generation · Circuit performance analysis
📘 W20–21	Jan 16–31 2026	Verification/signing/submission completion · txId-in-circuit integration · emulator submit + CI stabilization
📘 February 2026 (Closing Report)	February 2026	v0.5 flow completed · stream closure/bilan · ZK-circuit roadmap + Intent Layer framing

🧭 How to use this wiki

• Use the table below as the timeline of record for the stream.
• Open each period report for detailed PRs, commits, issues, and decisions.
• Read the February 2026 Closing Report for the final synthesis and open technical questions.
• For build/run instructions, use the repository and component READMEs (not this wiki home page).

🧩 Maintainers:
Nicolas Henin · Will Gould · Polina Vinogradova · Kayvan Kazeminejad · Jesus Diaz Vico · Pyrros Chaidos · Marc Roeschlin

(Last updated · February 2026)