Each block in the chain has an exact timestamp and can't be changed.
return (float)rand() / RAND_MAX;，更多细节参见谷歌浏览器【最新下载地址】
。关于这个话题，旺商聊官方下载提供了深入分析
Secret Sauce #2: Adaptive Routing，这一点在WPS下载最新地址中也有详细论述
To test this I built gitgres, about 2,000 lines of C implementing the libgit2 git_odb_backend and git_refdb_backend interfaces against Postgres through libpq, plus roughly 200 lines of PL/pgSQL for the storage functions. libgit2 handles pack negotiation, delta resolution, ref advertisement, and the transport protocol while the backend reads and writes against the two tables, and a git remote helper (git-remote-gitgres) lets you add a Postgres-backed remote to any repo and push or clone with a normal git client that has no idea it’s talking to a database. There’s a Dockerfile in the repo if you want to try it out without building libgit2 and libpq from source.