H.A.R.D. · SIEM sink · hash-chained audit log

Audit & SIEM evidence

• 0
  Events (chain intact)
• 0
  Chain breaks detected
• 2 tiers
  OVH UK primary / Wasabi UK replica
• Retained
  Kept after file deletion

Storage resilience V9

hard-primary-ovh
OVHcloud UK (sim) · ciphertext onlyPrimary · healthy

hard-secondary-wasabi
Wasabi UK (sim) · ciphertext onlySecondary · standby

Failover stays behind the single ingress — A↔B within the primary tier, not disaster recovery (spec §4.2).

Chain integrity V10

Each event records the previous event’s hash. Verification walks every row and confirms prev_hash matches the prior hash (spec §6).

Audit event log

Seq	Time (UTC)	Action	Lot	Actor / subject	Detail	prev → hash