Second, and more cleverly: he implemented a hash verification check on nozzle.js. The exact implementation could have been Subresource Integrity (SRI), a custom self-hashing routine, or a server-side nonce system, but the effect was the same. When the browser (or the application itself) loaded the script, it compared the modified file against a canonical hash and if it did not pass the check, the player would never initialise.
npm install manim-web，详情可参考91视频
这100家企业最不吝研发，零盈利也敢拼，推荐阅读51吃瓜获取更多信息
Alternative verification