This is a fundamental limitation of how most data deletion works today, and it comes down to a few core problems: **Deletion is an absence, not a presence** A receipt is a positive artifact -- proof that something *happened*. Proving a negative ("this data no longer exists anywhere") is cryptographically and architecturally much harder than proving a positive ("this file was signed at time T"). **No standard audit trail** Most systems are not built to emit a verifiable, tamper-proof log of what was deleted, when, and from which storage layer. Even if a company tells you "your data was deleted," that statement lives in their system, which they control. **Backups and replication** Data often lives in dozens of places: primary DBs, read replicas, backups, logs, caches, CDN edge nodes, analytics pipelines. A deletion receipt would need to account for all of them -- and companies rarely track this end-to-end. **No legal requirement to provide one** GDPR Article 17 gives you the right to erasure, and Article 19 requires notification to recipients -- but neither mandates a cryptographically verifiable receipt. Companies only have to confirm deletion, not *prove* it in a way you can independently verify. **Technical proof would require architectural changes** A trustworthy receipt would need something like: a Merkle-tree deletion proof, a signed timestamp from an independent witness, and a commitment scheme proving the original data existed before deletion. Almost no consumer product is built this way. The gap here is a policy and incentive problem as much as a technical one -- companies have little motivation to build verifiable deletion infrastructure when regulators don't require it.