# Collection Open Rule The collection open rule was designed to protect against sybil attacks in the early stages, and collections are gradually unlocked and available for placement on the MOPN map as specific Map Point milestones are reached. * Stage #1 * MOPN Point > 0 * Open the top 15 collection, check the list at [snapshot](https://dune.com/mopn/collection-open-rule) * Stage #2 * MOPN Point > 30000 * Open the next top 50 collection, check the list at [snapshot](https://dune.com/mopn/collection-open-rule) * Stage #3 * MOPN Point > 100000 * Open the all collection On December 4, 2023, at 00:00:00 UTC, a [snapshot](https://dune.com/mopn/collection-open-rule) was taken of an ERC721 collection on Ethereum. This snapshot considered the past 30 days' transaction volume, owner count, and total supply to calculate a ranking score. $$ Score = (\text{Past 30 days volume})^2 \cdot \frac{\text{total owner}}{\max(\text{supply}, 10000)} $$ --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://litepaper.mopn.xyz/collection-open-rule.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.