> For the complete documentation index, see [llms.txt](https://psamurai.gitbook.io/patterned-samurai-english/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://psamurai.gitbook.io/patterned-samurai-english/psamurai/economic-model/what-is-usdop.md).

# What is $OP

$OP is the energy in the Patterned Samurai Metaverse. It needs to consume $OP in modes such as level up,Samurai Soul Enhancement, PVE, and PVP. $OP, as a crypto asset, is also transferable and tradable.

#### The number of $OP is unlimited, and the allocation ratio is:

<table><thead><tr><th width="258.5187747772739">$OP</th><th width="226.98539463510187">%</th><th>token: OP</th></tr></thead><tbody><tr><td>Total Supply</td><td>100%</td><td>infinite</td></tr></tbody></table>

#### Token Issuance Rules:

Obtained by staking PSamurai NFT.

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This content is still under development, subject to the actual online content. Stay tuned
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