# What is CRID (Cryptographic Resource ID)? > A CRID is a stable identifier derived from a resource’s public key; knowing it does not grant access. Source: https://layerv.ai/glossary/crid/ --- [← All Terms](https://layerv.ai/glossary/) # What is CRID (Cryptographic Resource ID)? A Cryptographic Resource ID (CRID) identifies a resource independently of a URL or network location. The CLI prints it when a resource is published. It is derived from the resource public key, so a compatible opener can check that a signed access grant belongs to the expected resource. Identity, location, and permission are separate: keep the name, issue fresh access for each task. A CRID is safe to include in documentation or a ticket because the identifier grants no access on its own. An authorized owner uses it to request access links. It stays stable across stops and restarts of the same resource; deleting the resource retires that identity. ## How LayerV Implements This Run qurl publish to create or find a resource, qurl status to inspect its local state, and qurl share to issue an access link. Send the returned link to a recipient who needs access. Keep the CRID for managing the resource. ## Related [qURL](https://layerv.ai/glossary/qurl/) [Network Hiding Protocol (NHP)](https://layerv.ai/glossary/network-hiding-protocol/) [Preemptive Cybersecurity](https://layerv.ai/glossary/preemptive-cybersecurity/) [qURL Platform →](https://layerv.ai/qurl/) [API Docs →](https://layerv.ai/docs/) [Conformance vectors →](https://github.com/layervai/qurl-conformance) --- *This markdown version is auto-generated from [https://layerv.ai/glossary/crid/](https://layerv.ai/glossary/crid/) for AI agents. Curated agent resources: [llms.txt](https://layerv.ai/llms.txt). For the full interactive experience, visit the HTML version.*