> For the complete documentation index, see [llms.txt](https://red-extraction.gitbook.io/red-extraction/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://red-extraction.gitbook.io/red-extraction/web3/nfts.md). # NFTs Red Extraction NFTs harnesses the [ERC-1155 MULTI-TOKEN STANDARD](https://ethereum.org/en/developers/docs/standards/tokens/erc-1155/). These NFTs take the form of Extractor Licenses, which play a pivotal role in the claiming process of stored $OVDM tokens earned through questing endeavours. Claim periods occur ***twice a week***, allowing users to regularly access their earnings and further engage with the game's economy. During claim periods, the amount of tokens that can be claimed is directly tied to the number of Extraction Licenses held by the user. The more licenses a user possesses increased the amount of $OVDM tokens claimable Owning a maximum of 20 Extractor Licenses entitles users to claim 50% of their tokens during each claim event. With two claim events occurring weekly, this setup ensures that users can claim 100% of their tokens over the course of a week. | No. NFT held | % Amount claimable | | ------------ | ------------------ | | 1 | 2.5 | | 2 | 5.0 | | 3 | 7.5 | | 4 | 10.0 | | 5 | 12.5 | | 6 | 15.0 | | 7 | 17.5 | | 8 | 20.0 | | 9 | 22.5 | | 10 | 25.0 | | 11 | 27.5 | | 12 | 30.0 | | 13 | 32.5 | | 14 | 35.0 | | 15 | 37.5 | | 16 | 40.0 | | 17 | 42.5 | | 18 | 45,0 | | 19 | 47.5 | | 20 | 50.0 |