Infrastructure Funding for Polkadot Asset Hub #5 - Maintenance of public good NFT marketplace

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Chaotic — Polkadot NFT Marketplace & Data Layer Maintenance

Proponent: Damsky, Chaotic COO
15VmrRmgPhKMfBanjS5ei4dCcVL54GMLCfnVRryynSYzvyys

Date: July 2026

Requested Amount: $80,400 in USDC ($6,700/month × 12 months)

Short description: 12-month maintenance funding for Polkadot's open-source NFT marketplace and NFT data layer: 90,000+ NFTs, 636k+ monthly requests, covering indexers, APIs, IPFS gateway, and platform maintenance the ecosystem depends on.

Project Category/Type: Infrastructure / Open source

Previous treasury proposals:

Key links:


1. Background

Chaotic is the open-source NFT marketplace for Polkadot. The same core team has built and operated NFT infrastructure on Polkadot and Kusama for over five years.

Beyond the visible marketplace, Chaotic maintains the entire NFT data layer for Polkadot:

  • Indexers: track ownership and activity across Asset Hub and Kusama
  • APIs: free access for projects like Nova Wallet and Dotmemo
  • Infrastructure: 636k+ monthly requests, 14.7k+ monthly unique visitors
  • Storage: 90,000+ NFTs served via our IPFS gateway (50k weekly requests)

What this proposal is about: maintenance only. No new features, no R&D. The purpose is to keep the 90,000+ NFTs on Polkadot and their five years of on-chain history live and accessible. The history stays on-chain either way, but without a maintained front end and data layer, owners can no longer look up, view, or trade their NFTs, and integrators lose the APIs they build on.

1.1. Context of the proposal

Chaotic's previous maintenance funding (#1768) expired in April 2026. Since then, the team has kept all services running unfunded. This is not a new ask; it continues essential services the treasury has funded for years.

The Polkadot NFT ecosystem depends on a small number of contributors maintaining critical infrastructure. Chaotic provides both the marketplace and the underlying services that keep NFT data accessible, collections discoverable, and integrations functioning: indexing, APIs, and metadata delivery.

1.2. Previous funding & delivery

Under previous treasury funding, the team delivered:

  • Complete platform rebuild: 5x faster than the legacy codebase, launched in open beta August 2025
  • Uninterrupted infrastructure operation through the Hub launch (November 2025) and since
  • 90,000+ NFTs and their full history served without disruption
  • 30+ artists onboarded with a 90%+ collection sellout rate
  • Chaotic Cards v1: 320+ mints, one of Asset Hub's most active native collections

Milestone reports for each funded period are published under the respective referenda on Polkassembly and in our public GitHub repository.

1.3. Problem statement

Without continued maintenance funding:

  • Service disruption: Polkadot loses its only public-good NFT marketplace, a working product on Asset Hub.
  • Infrastructure failure: 1.14 million monthly requests go unanswered; Nova Wallet, Dotmemo, and other integrators lose NFT data access and would each need to build and fund their own indexers.
  • Data inaccessibility: 90,000+ NFTs and five years of indexed on-chain history lose their front end. Owners can no longer look up or view their NFTs.
  • No home for on-chain art: the Kusama Art bounty is actively funding art and on-chain projects that need a marketplace to launch on. Without Chaotic, there is nowhere for them to land.
  • Higher cost later: maintaining existing, proven infrastructure costs a fraction of rebuilding it from scratch after it shuts down.

1.4. Introducing the Chaotic Team

Core Team

  • Luuu – Co-founder, CEO
    Digital artist and Web3 innovator; curator of Polkadot NFT galleries. Leads artist onboarding, education, and community building. GitHub: github.com/JustLuuuu
  • Damsky – COO
    5 years in the Polkadot ecosystem; Web3 and community growth. Led initiatives for major Ethereum and Polkadot projects. Focuses on ecosystem partnerships, growth, and communications.
  • Viki Val – Backend & Infrastructure
    Full-stack developer with extensive Polkadot expertise; early NFT infrastructure developer on Kusama. Leads technical architecture. GitHub: github.com/vikiival
  • Hassnian – Frontend
    Cross-functional development, services and indexing, technical integrations. GitHub: github.com/hassnian

1.5. What we do differently

  • Speed first: rebuilt from scratch, the platform is 5x faster, no waiting for pages to load.
  • NFTs that actually sell: 90%+ sellout rate on collections. We don't just list NFTs, we help artists succeed.
  • Focus on what works: we build only on Asset Hub, where the activity is, instead of spreading thin across parachains.
  • Team ownership: the core team owns the project. We're here for the long term.
  • Public good commitment: no platform fees. Treasury funding means we work for the ecosystem, not for profit.
  • PolkaVM ready: as smart contracts mature on Polkadot, the platform is prepared to support Ethereum-style NFTs.

2. Proposal Details

2.1. Objectives

  • Ensure continuous, zero-downtime operation of core infrastructure
  • Maintain the indexing infrastructure serving the entire ecosystem
  • Preserve API services that multiple projects depend on
  • Provide platform stability, runtime compatibility, and security updates
  • Support users and artists with documentation, onboarding, and community help

2.2. Scope

2.2.1. Critical Indexer Infrastructure

The backbone of Polkadot's NFT data layer:

  • SubSquid indexers processing 10k+ weekly requests across Asset Hub and Kusama
  • 99.9% uptime maintained

2.2.2. Core Infrastructure & APIs

  • Uniquery API: TypeScript SDK for developers (used by Nova Wallet, Dotmemo)
  • IPFS gateway: 50k weekly requests serving 90,000+ NFTs
  • Caching layer via Stellate (free tier, 120k monthly requests), ~31% cache hit rate
  • Pricing feeds: real-time DOT/KSM price data, free for ecosystem projects

2.2.3. Platform Maintenance & Artist Support

  • Bug fixes within 48 hours for critical issues, one week for minor
  • Polkadot runtime upgrades within 72 hours of release
  • Security patches and dependency updates
  • User support via Telegram, documentation, and FAQ maintenance
  • Artist onboarding and collection launch support
  • Maintaining PolkaVM readiness as smart contract support matures

2.3. Milestones

Milestone 1: Infrastructure Maintenance – $8,400 (12 months)

Component Deliverable
SubSquid Indexers • Maintain indexers (Asset Hub, Kusama) processing 10k+ weekly requests
• Used by Nova Wallet, Dotmemo, and other ecosystem teams
API Operations • Keep Uniquery TypeScript SDK operational
• Maintain pricing APIs
• Serve 636k+ total monthly requests
IPFS / CDN • Maintain gateway serving 90,000+ NFT metadata files
• Process 50k weekly IPFS requests
Hosting costs • SubSquid indexer hosting: $400/month ($4,800 total)
• Railway platform deployment: $100/month ($1,200 total)
• Cloudflare CDN & DDoS protection: $100/month ($1,200 total)
• IPFS server & pinning: $50/month ($600 total)
• Monitoring & backups: $50/month ($600 total)
• GraphQL caching via Stellate: free tier ($0)

Milestone 2: Platform Maintenance – $72,000 (12 months)

Component Deliverable
Ongoing Maintenance • Daily platform monitoring and uptime management
• Bug fixes within 48 hours for critical, one week for minor
• Frontend updates and UI improvements
• Database optimization and performance tuning
• Regular dependency updates
Runtime Compatibility • Polkadot runtime upgrades within 72 hours
• Asset Hub integration updates
• Kusama compatibility maintenance
• Breaking change migrations and version compatibility testing
User Support • Direct user support via Telegram
• Bug report triage and response
• Feature request documentation
• FAQ and help documentation
Artist Support • Artist onboarding and collection launch support
• Technical assistance for creators
• 90%+ sellout rate maintained

2.4. Timelines

Milestone Effort Team Duration Budget (USD)
1. Infrastructure Maintenance Hosting costs n/a 12 months $8,400
2. Platform Maintenance 1,440 hrs total 4 12 months $72,000
TOTAL 12 months $80,400

2.5. Budget Breakdown

Item Rate Volume Cost
Milestone 1: Infrastructure hosting (indexers, deployment, CDN, IPFS, monitoring) $700/month 12 months $8,400
Milestone 2: Platform maintenance (development, operations, uptime, user & artist support) $50/hr 1,440 hrs $72,000
TOTAL $80,400

The 1,440 hours are split across 4 team members (≈30 hours per person per month). This represents minimum viable funding: hosting at cost, labor at $50/hr, well below market rate for senior Polkadot developers. New features and expanded programs are out of scope and would require separate proposals.


3. How do Polkadot stakeholders benefit?

  • Ecosystem continuity: no disruption to NFT operations on Asset Hub
  • Data availability: continued access to indexed NFT data across chains
  • Developer support: uninterrupted, free API access for dependent projects
  • Cost efficiency: maintaining proven infrastructure costs a fraction of rebuilding it
  • Predictability: 12 months of funding removes the recurring uncertainty of short cycles and lets the team focus on operations instead of fundraising

4. Why This Matters Now

The Hub has been live since November 2025, and Polkadot has consolidated activity on Asset Hub as the center of the ecosystem. Chaotic has served it since day one:

  • 90,000+ NFTs live and accessible
  • Infrastructure that Nova Wallet, Dotmemo, and other projects depend on
  • Proven team with 5+ years of ecosystem experience

Chaotic's maintenance funding expired in April 2026. The team has covered operations out of pocket since. Without continuation:

  • Indexer hosting can no longer be paid; indexers shut down within weeks
  • APIs go offline for every dependent project
  • Years of NFT data become practically inaccessible
  • The ecosystem loses its only NFT marketplace

This is not R&D funding. It is a working product that needs maintenance to keep serving the ecosystem.


5. Proposal Report

5.1. Quantitative Metrics

Metric Category Target Measurement Method
Indexer Performance • 99.9%+ uptime for all indexers
• <500ms query response time
• 10k+ weekly requests processed
Automated monitoring with Grafana dashboards
Platform Stability • Zero critical outages
• <48hr critical bug resolution
• 99.9% API availability
Uptime monitoring, incident tracking
Infrastructure Efficiency • Hosting within $700/month budget
• 100% data integrity
Cost reports, performance benchmarks
User Impact • Zero service disruptions
• 90,000+ NFTs maintained
• 1M+ monthly API requests served
• Volume, NFTs hosted, active collections
Usage analytics, user feedback

5.2. Qualitative Metrics

Metric Category Evaluation Method
Maintenance Quality Monthly review of resolved issues and system improvements
Ecosystem Impact Feedback from projects using our infrastructure and APIs
Documentation Clarity and completeness of maintenance logs and guides

5.3. Communication

Every quarter (four reports over the funding period), we will:

  • Submit a maintenance report covering indexer performance, uptime statistics, infrastructure costs, resolved issues, and API usage
  • Update our public GitHub repository with maintenance logs
  • Share progress with the community via the Polkadot Forum and Polkassembly
  • Remain available for community questions and feedback at any time

5.4. Success Indicators

Milestone Key Success Metrics
1. Infrastructure Maintenance • All indexers operational
• Zero data loss incidents
• Performance benchmarks met
2. Platform Maintenance • API uptime >99.9%
• Security vulnerabilities patched
• Bug backlog cleared

As a public good for Polkadot, all maintenance work remains transparent and open source, allowing the community to verify progress and hold the team accountable.


6. Payment Conditions

6.1. Requests

The total requested amount is $80,400 in USDC, split into twelve equal monthly payments of $6,700. Monthly payments keep progress visible at every step and let the community pause or stop funding at any time via referendum. This funding ensures:

  • Continuous, reliable operation of core infrastructure
  • Uninterrupted service for 90,000+ NFTs and their owners
  • Continued operation of indexers and APIs serving 636k+ monthly requests
  • Preservation of essential NFT infrastructure for the Polkadot ecosystem

6.2. Submissions

With each quarterly report, we will submit:

  • Detailed maintenance reports with performance metrics
  • Infrastructure cost breakdowns
  • Links to open-source code updates
  • Community feedback integration documentation

6.3. Accounts

The Polkadot account address of the proposer is:

15VmrRmgPhKMfBanjS5ei4dCcVL54GMLCfnVRryynSYzvyys

This account has a verified on-chain identity.

6.4. Communications

The project manager can be contacted at: [email protected]

The proposer is also available on Telegram: https://t.me/damskyftw

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