Proof-of-Erasure Protocol
Cryptographic Multi-Store Deletion & Restore-Quarantine Reconciliation Engine
Product Overview & Key Capabilities
An enterprise cryptographic erasure orchestration system that coordinates multi-store deletion cascades across primary databases, analytical data lakes, and third-party processors while enforcing quarantine reconciliation on backup restores to prevent orphaned data resurrection.
Multi-target disposition ledger, restore-quarantine replay harness, and cryptographic erasure tombstone registry.
Target Roles & Operational Impact
| Target Persona & Role | Decision Authority | Operational Value & Impact |
|---|---|---|
| Data Platform Engineer | Operational Safety Veto | Enumerate all data target dispositions and enforce cryptographic shredding on secondary backups. |
| DPO & Legal Retention Officer | Statutory Retention Sign-Off | Harmonize DPDP Section 8(7) erasure with mandatory PMLA (5 yr) and RBI (8 yr) retention exemptions. |
| Independent Assurance Auditor | Independent Verification | Distinguish unconfirmed vendor delivery receipts from verifiable, tamper-evident cryptographic tombstones. |
Data Schema & Architecture Interface Contracts
The following data schemas and interface contracts define the structured payloads and integration endpoints of this product:
Operational Workflow & Product Invariants
Execution Workflow Procedure
- Receive erasure trigger (withdrawal under Section 6(4) or purpose completion under Section 8(7)).
- Evaluate against statutory retention schedule (Tax, PMLA, RBI) to identify records requiring lawful retention.
- Issue cascade deletion instructions to primary datastores (SYS-002), data warehouses (SYS-004), and processors (SYS-003, SYS-013).
- Record cryptographic erasure tombstones in the immutable ledger (SYS-010) and await processor ACK receipts.
- Enforce restore quarantine (SYS-014): upon DR backup restore, replay tombstone log to eliminate resurrected orphan data before opening production traffic.
Mandatory Product Invariants
- P03-R01: Display subtitle: Scoped erasure evidence, not universal proof. Avoid misleading claims of absolute zero-byte mathematical destruction.
- P03-R02: Distinguish states: RESTRICTED_USE, LAWFULLY_RETAINED, ELIGIBLE_FOR_DISPOSAL, AWAITING_ACK, and VERIFIED_IN_SCOPE.
- P03-R03: Require separate Rule 6(1)(e), Rule 8(3), legal-hold, and sectoral retention review before physical destruction.
- P03-R04: Maintain portable evidence artifacts independent of proprietary cloud subscriptions or vendor-locked consoles.
Operational Boundaries & Architecture Assumptions
- • No claim of physical hard-drive magnetic degaussing verification.
- • No claim of real-time multi-cloud data shredding across uncooperative third-party SaaS vendors.
- • No permanent storage of customer PII in telemetry logs.
Built-in Quality Verification & Compliance Test Harness
Verify simultaneous dispatch and tracking of erasure instructions across internal databases and external processors.
Validate that restoring a 30-day-old backup snapshot in quarantine automatically executes pending tombstones before traffic ingress.
Verify that records flagged under PMLA/RBI retention are isolated into restricted cold storage rather than deleted.
Statutory Grounding & Regulatory Crosswalk
6 Enforced ProvisionsThe following primary Act sections and subordinate Rule provisions establish the direct legal grounding, mandatory statutory constraints, and operational compliance duties enforced by this product:
Section 6
Specific informed affirmative necessary-data consent; comparable ease of withdrawal; reasonable-time cessation with lawful exceptions; separate registration and burden of proof.
Section 8
Responsibility despite agreements/principal default; valid processor contract; conditional data accuracy; safeguards; breach intimation; erasure; contact and grievance mechanism.
Section 12
Correct inaccurate/misleading data; complete and update; erase on prescribed request.
Rule 6
Minimum security, access, visibility, continuity/backup, one-year security data/log retention, contract safeguards, organisational/technical measures.
Rule 8
Third Schedule class/purpose/period; 48-hour warning; separate minimum one-year personal/traffic/other-log retention from processing for Seventh Schedule purposes.
Schedule III
E-commerce >=2 crore India registered users; gaming >=50 lakh; social >=2 crore; three years latest qualifying contact/rights event or Rules commencement; account/token-access purposes excluded.
Target Systems Topology (SYS-001..014)
View Complete Architecture Topology →Domestic production database and primary system of record for loan servicing
Processor-operated messaging engine (ENT-004) gated by optional consent
Purpose-partitioned analytical warehouse staging operational reporting
Cold physical and scanned document store subject to statutory retention schedules
Offshore disaster recovery replica; isolated pending cross-border transfer checks
Third-party international BI environment (ENT-005); prohibited unconsented reuse
Immutable consent event store and Policy Decision Point issuing authority tokens
Integration pipeline tracking downstream processor instructions and acknowledgements
Isolated test environment ensuring recovered backups pass tombstone replay