The blog post is probably more understandable and relevant for readers here:
https://letsencrypt.org/2020/02/19/multi-perspective-validat...
Maybe we can get the link changed?
https://letsencrypt.org/2020/02/19/multi-perspective-validat...
Maybe we can get the link changed?
[1] https://community.letsencrypt.org/t/acme-v1-v2-validating-ch...