One problem the Bitcoin Core Team spent energy solving for is:

• how does one trust that they're running the bitcoin-core binary that corresponds to the source code at a specific release version and not its evil twin?
• how does one verify if this is the same code they think everyone else is running?
• how does one verify what people think the code and binary should be for a given release?
• what identity anchors are used to establish trust in the bitcoin-core dev community for contributors and core dev individuals?