Architecture

Author: Dylan, Avinasi Labs

Source code: AvinasiLabs/delong-v1

DeLong implements five core contracts per dataset: Factory, IDO, DatasetToken, Governance, and RentalPool. The Factory deploys minimal proxies for gas efficiency, while each dataset operates independently with its own contract suite.

Contract Suite

Factory - Deploys new datasets using EIP-1167 minimal proxy pattern. Maintains implementation addresses and emits events for indexing. Configured once with protocol fee recipient and Uniswap addresses.

IDO - Implements Virtual AMM fundraising with constant product pricing from $0.01 initial price. Handles token trading during 100-day period, triggers automatic launch when all salable tokens sell, manages rental payments and access verification, and coordinates LP creation plus fund distribution.

DatasetToken - ERC-20 token with ERC20Votes governance extensions. Freezes transfers during fundraising, unfreezes at launch. Integrates with RentalPool via _update hook for automatic dividend settlement on all transfers.

Governance - Merges treasury custody, LP management, and voting into single contract. Implements four proposal types (Funding, Pricing, Delist, GovernanceUpgrade) with 7-day voting periods and 50% quorum. Holds USDC treasury and locked Uniswap LP tokens, only releases via approved proposals.

RentalPool - Distributes dividends using Accumulated Rewards algorithm. Receives 95% of rental payments from IDO, maintains O(1) complexity for revenue addition and claims, settles dividends through DatasetToken hooks during transfers.

Contract Dependencies

Factory → deploys → IDO, DatasetToken, Governance, RentalPool

IDO → calls:

• DatasetToken.unfreeze() at launch

• Governance.depositFunds() and lockLP() at launch

• RentalPool.addRevenue() on rental payments

DatasetToken → calls:

• RentalPool.beforeBalanceChange() and afterBalanceChange() on transfers

Governance → calls:

• IDO.updateHourlyRate() on Pricing proposals

• Uniswap router for LP removal on Delist proposals

Decimal Handling

USDC: 6 decimals (1 USDC = 1e6 smallest units)

Dataset tokens: 18 decimals (1 token = 1e18 smallest units)

Prices: USDC per token (6 decimals)

Dividend precision: 1e18 scaling factor for accurate per-token accounting

The IDO and RentalPool handle decimal conversions internally. Frontend applications must use proper decimal scaling when calling contract functions.

Event Indexing

Off-chain systems monitor events to build application state:

Dataset catalog: IDOCreated events from Factory

Fundraising progress: TokensPurchased, TokensSold, IDOLaunched from IDO

Governance activity: ProposalCreated, VoteCast, ProposalExecuted from Governance

Revenue tracking: AccessPurchased, RentalDistributed, RevenueAdded from IDO and RentalPool

Dividend claims: DividendsClaimed from RentalPool

This event-driven architecture enables responsive frontends without constant state polling.