Last updated 3 months ago

UTxO Timeline Graph: Visual Time-Travel Debugging for Devs

Problem

UTxO debugging is slow and opaque: current explorers focus on transactions and lack time-travel views. Devs can’t easily see which UTxOs were added/removed/changed or export clear visuals for docs

Solution

We will build an open-source webapp that turns tx history into a contract-centric UTxO timeline with time-travel debugging, highlighting adds/removes/changes and exporting visuals for docs/audits.

Total to date

This is the total amount allocated to UTxO Timeline Graph: Visual Time-Travel Debugging for Devs.

₳100,000
Total funds requested
138
Total votes cast
₳31.6M
Votes yes
₳9.14M
Votes abstain

About this idea

Team

We are a compact, delivery-focused team with clear ownership across backend/cloud, smart contracts, frontend/UX, and test automation. Roles map directly to the milestones, keeping coordination light and accountability high.

Manh Nguyen - Founder, Plutus Developer, Cloud Architect, Backend Developer

  • Scope in this proposal
    • Project lead: delivery management, roadmap, reporting, milestone evidence.
    • Backend & data: indexing/frames/diffs pipeline, export services (Mermaid/DOT/PNG/SVG).
    • AWS architecture & operations: S3/CloudFront, API/Workers (Fargate), RDS, SQS, CloudWatch, status page.
    • Security notes, performance benchmarks, release engineering, close-out report/video.
  • Relevant experience
    • 7 years professional software engineering; 4 years team management.
    • 5 years designing AWS cloud infrastructure.
    • Proposal Advisor (Fund 9). Courses: Haskell, Plutus Pioneer v3 & v4, Cardano Blockchain Course.
  • Links

Ngan Nguyen - UX/UI Designer, Product Designer

  • Scope in this proposal
    • End-to-end timeline UX: slider/stepper interactions, diff overlay readability (adds/removes/changes), bookmarks & filters UX.
    • Interface design for graph viewer, exports (PNG/SVG/Mermaid/DOT), responsive layouts, accessibility.
    • User research for clarity and onboarding (microcopy, empty states, tooltips), design specs from wireframe to hi-fi.
  • Relevant experience
    • 5 years in software interface design and user experience analysis.
  • Links

Hoang Nguyen - Frontend & Off-chain Developer

  • Scope in this proposal
    • Next.js viewer implementation: graph render (Canvas/WebGL), interactive slider, keyboard controls, jump-to slot/tx.
    • Filters, bookmarks, and export UX wiring; performance optimization (virtualization, debounced updates).
    • Client SDK integration (read-only) for embedding frames/exports; adapter UI for Kupo/Ogmios configuration.
  • Relevant experience
    • 7 years web frontend (VueJS/ReactJS); 2 year off-chain/Cardano integrations
  • Links

Thuy Hoang - Automation Tester

  • Scope in this proposal
    • Test design & automation: unit/integration for frames/diffs, golden-file tests for exports, CI gates.
    • Load/performance scenarios (250/500/1k-tx histories); regression suite for adapters (Kupo/Ogmios).
    • Evidence capture for milestones (benchmarks, artifacts), final QA sign-off; support the Close-out Report & Video.
  • Relevant experience
    • 3 years software analysis/test case design; 1 year writing automated test scripts.
  • Links

Collaboration & governance

  • Working mode: async-first (GitHub issues/PRs, release notes, recorded demos). Clear owners per milestone output.
  • Quality & security: code reviews, CI with tests/linters/security scans; public status page and benchmark reports.
  • Community contributions: CONTRIBUTING + DCO; "good first issue" labels to welcome PRs without heavy coordination.

Our team structure keeps responsibilities tight and measurable: architecture/ops and backend are led by Manh; timeline UX by Ngan; viewer implementation by Hoang; and automated testing/evidence by Thuy. The result is a low-overhead, high-accountability delivery that aligns directly with the project’s milestones and KPIs.