[{"type":"report","id":"BLC-STUDY-0541","title":"Post Quantum Migration and Legacy Signature Sunset","author":[{"literal":"Jameson Lopp"}],"issued":{"date-parts":[[2026]]},"publisher":"Jameson Lopp","URL":"https://bips.dev/361","note":"Rights status: Official external source only. Not a licence to republish the paper."}]