Weak Subjectivity

In a sentence

Weak subjectivity requires a new node to obtain a sufficiently recent trusted checkpoint.

• Weak subjectivity requires a new node to obtain a sufficiently recent trusted checkpoint.
• The proof-of-stake design uses weak subjectivity to limit exposure to long-range attacks.
• A node that has been offline for a long period may need fresh social information because of weak subjectivity.
• Client documentation explains how operators can acquire a checkpoint under the weak subjectivity model.
• Weak subjectivity differs from relying solely on the genesis block to identify the canonical chain.