EGC resources
EGC license and related terms (draft)
Pending legal review
All terms on this page are drafts. License, refund and tax terms are pending legal review. Both the Chinese and English texts are candidates and cannot serve as formal legal texts.
This page provides no agreement available for acceptance, consent checkbox or transaction interface; purchasing is not currently open. Formal terms and their scope of application will be published separately after review.
The following offline authorization boundary is only a draft disclosure of an unreleased design. It is not evidence that the product has been implemented, accepted or released, and does not constitute a service guarantee.
Customer support: support@acorner.top
Offline authorization boundary (disclosure draft)
Pending legal review
Provided that the client clock and all local license state have not been manually rolled back, cleared or restored as a whole, offline authorization lasts no later than the earlier of the license expiry date and seven days after the issuance time of the last snapshot whose signature was successfully verified. The product stores the local high-water-mark anchor separately from license state, but this anchor is not trusted hardware immune to rollback. If all local license state, including the independent anchor, is restored together, previously observed revocations or downgrades may be bypassed within the window in which the old snapshot remains valid, even if the clock has not been rolled back; while the clock advances normally, the authorization is still bounded by seven days after that old snapshot’s issuance time and by the license expiry date. If all local license state and the system clock are restored together, the seven-day limit in actual elapsed time may be exceeded, and the product does not guarantee a seven-day upper bound in that situation. Being online while synchronization fails does not count as successfully obtaining new state; paid authorization stops immediately after new state containing a revocation has been successfully obtained and its signature verified.