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AtomicMarket V2.0

AtomicMarket is a marketplace smart contract for selling, auctioning and renting out AtomicAssets NFTs on Antelope chains. V2.0 builds on the AtomicAssets V2.0 contract.

What's new in V2.0

Feature	Summary	Details
Royalty splits	The collection fee can be distributed across weighted founders, per-template recipients, and attribute-matching rules instead of going entirely to the collection author	Royalty Splits
Custodial rentals	Assets can be rented out per hour; renters receive the AtomicAssets holdership while ownership stays in contract custody	Rentals
Single-asset listings	Every sale, auction and buyoffer contains exactly one asset; bundle listings were removed	V2 Changes
Collection fee discounts	Settlements apply the lower of the fee at listing time and the fee at execution time, enabling temporary collection-wide discounts	V2 Changes
CPU optimizations	Lazy table construction, per-action config caching, size-capped raw reads of the collections table	V2 Changes

Core concepts (unchanged from V1)

• Deposits: buyers and renters pay from a deposited balance. Transfer any supported token to the market account with the memo deposit; withdraw any time with the withdraw action.
• Sales: announcesale, then activate by creating an AtomicAssets trade offer to the market account with the memo sale. Purchased with purchasesale.
• Auctions: announceauct, then activate by transferring the asset to the market account with the memo auction. Bid with auctionbid; settle with auctclaimbuy / auctclaimsel.
• Buyoffers: createbuyo (per asset) and createtbuyo (per template).
• Marketplaces: anyone can regmarket a marketplace name; the maker and taker marketplaces of a settlement each receive a configurable share (1% by default).
• Delphi pricing: listings can be priced in one symbol (e.g. USD) and settled in another (e.g. WAX) at the delphioracle exchange rate at execution time. This works for sales and rentals in V2.

Settlement payout order

Every settlement (sale purchase, auction seller claim, buyoffer acceptance/fulfillment, rental) distributes the payment as follows:

1. Maker marketplace fee (default 1%)
2. Taker marketplace fee (default 1%)
3. Collection fee — min(fee at listing time, fee at execution time), distributed per the collection's royalty split config, or in full to the collection author if none exists
4. Bonus fees (admin-configured, if applicable)
5. The remainder is paid out to the seller / listing owner directly

All fee shares accrue to the internal balances table and are claimed with withdraw. The seller's share is transferred out directly at settlement.

For developers

• Build: make build (native CDT 4.1.1) or bash build.sh (dockerized CDT)
• Tests: yarn install && bash build.sh && npm test (VeRT / @vaulta/vert suite)
• Ricardian clauses for all actions are embedded in the ABI (resource/atomicmarket.contracts.md)