The certificate above is a bitvector. You can implement operations on it using fast machine operations if you want. https://msp.cis.strath.ac.uk/types2025/abstracts/TYPES2025_paper37.pdf
Using a static data memeberInstead of implementing the singleton pattern using a block local static variable, you can go for a private static data member. Time to see how this implementation behaves. Here is my implementation where I kept the labels stable:
，这一点在新收录的资料中也有详细论述
抒情的森林：我只能从有限的视角观察，出版环境糟糕不糟糕，我们买书的人都持续做（读书）这件事情，这么大的一个国度，没有书怎么可能说得过去？
blocking them from loading.