Tansu Integration & SCF Credentials

Overview

The SCF Public Goods Award uses Tansu as the on-chain voting platform for proposal evaluation and funding decisions. Tansu integration enables anonymous NQG-weighted voting, transparent on-chain governance records, and composable SCF Pilot credentials.

Current status: Operational for 2026 Q2 award round with NQG-weighted anonymous voting, SCF Governance space on Tansu, and soulbound credential framework.

Tansu Voting Integration

Governance Structure

The SCF operates as a dedicated organization on Tansu:

  • SCF Governance Space — A non-code project space on Tansu dedicated to Public Goods Award rounds
  • Proposal Submissions — Each PG Award round creates proposals within the SCF Governance space
  • Anonymous Voting — BLS12-381 cryptographic scheme (Pedersen commitments) enables Pilots to vote without revealing identity using a single address
  • Transparent Results — All votes recorded on-chain with verifiable tallying

NQG-Weighted Voting

SCF Pilots vote using their reputation scores for sybil resistance and proportional voice:

Voting mechanism:

  1. Neural Quorum Governance (NQG) scores calculated and stored in stellar-community-fund-contracts
  2. Each Pilot’s can cast a vote on Tansu. They can adjust their voting power which is capped based on their individual NQG scores
  3. Votes are recorded on-chain as Pedersen commitments
  4. Votes execute on-chain without ever revealing individual votes

Vote privacy:

  • Traditional Pedersen commitment scheme preserves vote content privacy
  • Space owners can inspect votes (consistent with current SCF governance)
  • Pilots use single addresses (no multi-address workarounds for anonymity)

Voting Workflow

The 2026 Q2 award round follows this on-chain voting pattern:

  1. Proposal Creation — Council creates proposals on Tansu at close of Discussion & Revision window
  2. Voting Period — ~3 days for Pilots to cast NQG-weighted votes
  3. On-Chain Execution — Results tallied and recorded on Stellar
  4. Award Distribution — Approved proposals receive initial funding tranche

See Proposer Instructions for full timeline details.

SCF Pilot Credentials

Soulbound Credential Design

The SCF Pilot credential system builds on NQG scores with dynamic NFT representation:

Credential properties:

  • Soulbound — Non-transferable tokens bound to Pilot identities
  • Dynamic — NFT metadata updates automatically when SCF role and NQG score change
  • SEP-50 Compatible — Follows Stellar ecosystem standards for wallet integration (Freighter, etc.)
  • Composable — Other projects can leverage trust signals (e.g., Stellar Security Portal)

Use cases:

  • Voting — Badge-based vote weighting on Tansu
  • Access Control — Pilot-only features in ecosystem tools
  • Reputation Display — Public profiles showing SCF contribution status
  • Third-Party Integration — External projects can query Pilot status and reputation

Credential Lifecycle

  1. Initial Issuance — New Pilots receive soulbound credential at onboarding
  2. NQG Updates — Credential metadata refreshes when NQG score changes (monthly recalculation)
  3. Status Evolution — Visual representation updates to reflect reputation tier
  4. Role-Based Access — Credential includes role metadata (Pilot, Council, etc.)

The credential contract architecture enables future expansions:

  • Composable metadata — Game-card style profiles, custom avatars, achievement badges
  • Cross-Platform Recognition — Pilots carry reputation across SCF tools and partner platforms
  • Governance Participation — Transparent on-chain record of voting activity

Integration Benefits

The Tansu + credential architecture addresses key governance challenges:

Pain Point How Addressed
Voting UX friction Single-address anonymous voting (no multi-wallet workarounds)
Identity verification Soulbound credentials provide on-chain Pilot verification
Reputation opacity Dynamic NFTs surface NQG scores transparently
Cross-tool friction SEP-50 compatibility enables wallet integration and ecosystem-wide trust
Limited programmatic access On-chain credentials replace Discord API dependencies
Vote manipulation risk NQG weighting + soulbound identity prevents sybil attacks

Future Enhancements

Near-term improvements under consideration:

Automated Execution

Currently, Tansu votes trigger manual award distribution. Future automation possibilities:

  • Smart Contract Execution — Vote results trigger on-chain payment contracts
  • NQG Updates — Voting participation automatically updates reputation scores
  • Tranche Automation — Milestone completion triggers subsequent funding releases

Enhanced Credentials

  • Visual Evolution — Dynamic artwork reflecting status tiers and achievements
  • Multi-Signature Support — Team credentials e.g. for working groups of SCF verified members

Governance Extensions

  • Delegation — SCF members delegate voting power while retaining credential
  • Custom NQG — Specific NQG score tailored to this grant program
  • Conflict of interest — Integrate the conflict of interest feature from Tansu into the workflow
  • Historical Dashboards — Transparent analytics of voting patterns and participation rates

The Tansu integration and credential framework provide the foundational infrastructure for decentralized SCF governance while maintaining backward compatibility with existing processes.

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