Acquire

The Acquire layer captures inputs from events, documents, and APIs. It stamps identity, tenancy, and checksums into immutable envelopes.

Responsibilities

• Connector registry with typed sources
• Identity & tenancy tagging
• Deduplication and checksum
• Retry and dead-letter handling

Envelope example (YAML)

envelope_id: <uuid>
tenant_id: acme
source:
  type: s3
  id: bucket/key
checksum: sha256:…
timestamp: 2025-10-03T12:00:00Z
identity:
  subject: user-123
  roles: [analyst]
payload_ref: s3://raw/…

Checklist

• MUST include cryptographic checksum and timestamp
• SHOULD support idempotent replays
• MUST isolate tenants and follow least-privilege