Transaction Details

Transaction Hash
0xd76c8a77609371f73d6333e33a2d38ae98d3312ea912a82b7fdb156a67c9d784
Timestamp
Jul 28, 2026, 05:29:57 PM
Nonce
155
Operation Type
SET

Operation

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      "value": {
        "topic_path": "lessons/architecture",
        "title": "Event Sourcing over CRUD for Audit Trails",
        "content": "The team decided to adopt Event Sourcing over standard CRUD for financial transaction audit trails. Current PostgreSQL CRUD overwrites previous states, making it impossible to provide compliance-grade history. Database triggers were considered but rejected because they lack business context. The decision: use Kafka to store an immutable event log and build a materialized view in Postgres for fast reads. Reference: Martin Fowler Event Sourcing Pattern.",
        "summary": "Adopted Event Sourcing via Kafka over CRUD in PostgreSQL to satisfy compliance audit requirements.",
        "depth": 2,
        "tags": [
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          "event-sourcing",
          "audit-trail",
          "compliance",
          "kafka",
          "postgres"
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