Development Phases
The TaxChain roadmap is organized into six tightly scoped development phases—each with a code-name, fixed time-box, measurable KPIs, and explicit upgrade gates. The philosophy is release-early, prove determinism, then decentralize.
Phase / Code-Name
Time-frame
Major Deliverables
Gate Criteria (Exit KPI)
Dependencies / Risks
Concept & Research “Genesis”
Q2 – Q3 2024 (✅ completed)
• Legal landscape analysis (DE, AT, CH, FR)• Architecture white-paper v0.8• Rulebook DSL draft
✔ Stakeholder sign-off for legality in 4 core jurisdictions
Access to external tax-law counsel; regulatory changes mid-analysis
Prototype Chain “Spark”
Q4 2024 – Q1 2025 (✅ completed)
• Single-chain indexer (Ethereum)• Rulebook engine v1 (Germany only)• PoC PDF report generator
✔ Process 1 M tx with <10 s latency✔ Audit ✅ by OpenZeppelin Lite
Indexer stability; ABI coverage for DeFi protocols
AlphaNet “Flux”
Q2 2025 (running)
• pNFT contract v0.9 on testnet• Multi-wallet support (ETH + Arbitrum)• Closed-alpha portal (100 users)
✔ ≥ 95 % classification F₁ score vs. human labels✔ ≤ 1 % report mismatch rate
Early user feedback; partial rulebooks
Incentivised Beta “Fusion”
Q3 – Q4 2025
• Cartesi roll-up migration• Jurisdictions: DE + AT + CH + FR• Bug-bounty (Immunefi) & audit #2• $TAXC testnet faucet
✔ 1 000 external validators✔ Economic attack cost > $1 M (slashing sim)
Roll-up fraud-proof readiness; UI stress under load
Mainnet v1 “Photon”
Q1 2026
• Token launch & staking contracts• FeeVault live (report fees in $TAXC)• DAO-lite governance (& 48 h timelock)• Public report compiler SaaS API
✔ Audits #3 + formal verif ✅✔ 5 000 monthly active wallets✔ ≤ $0.01 anchor cost / user
L1/L2 congestion, token-listing liquidity
Multi-Chain & DAC8 “Spectrum”
Q3 2026
• Solana, Polygon, Cosmos IBC adapters• DAC8 machine-readable export module• ZK-ProofHub v1 (Groth16)• Plugin marketplace on-chain
✔ 8 supported chains / 250 dApps✔ EU-wide regulator sandbox approval
Cross-chain oracle integrity; DAC8 schema finalization
Full Decentralisation “Nova”
Q1 2027 →
• Diamond-proxy freeze → immutable core• Guardian Council dissolved → DAO full control• Post-quantum hash anchors (SPHINCS⁺)• Protocol insurance pool
✔ > 50 % fee flow governed on-chain✔ Insurance pool ≥ $20 M TVL✔ Zero-day pause < 30 min MTTR
DAO governance capture; quantum-safe migration complexity
🔭 Phase Interlock & Roll-Forward Policy
Hard gates—not soft launches. A phase is locked until all exit KPIs hit deterministic thresholds.
No feature drift. Any item not finished in its phase is punted to the next only via DAO vote, preventing silent scope creep.
Parallel tracks. Security audits and economic-incentive simulations run one phase ahead, ensuring issues are caught before mainnet code freeze.
Upgrade windows. All contract upgrades occur in scheduled 72-hour windows with public binaries and reproducible builds.
📡 Progress Transparency
Real-time burn & fee dashboards published
Quarterly Git commits & merge-request velocity fed into governance analytics.
Milestone NFT drops (non-tradable) to contributors meeting phase deliverables.
By adhering to these phased gates, TaxChain minimizes technical debt, solidifies regulatory trust, and delivers a predictable path from research prototype to fully decentralized, jurisdiction-aware tax infrastructure.
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