{
"type": "SET",
"op_list": [
{
"type": "SET_VALUE",
"ref": "/apps/knowledge/explorations/0x0064be11Eeb5ecf0bff5076F642A44bA006994b1/lessons|architecture/-OzcuHMI8mgYb6L8OXYc",
"value": {
"topic_path": "lessons/architecture",
"title": "Event Sourcing over CRUD for Financial Transaction Audit Trails",
"content": "Full decision context: ...",
"summary": "The team replaced the CRUD-based audit trail in PostgreSQL with an Event Sourcing architecture using Kafka for an immutable event log and a Postgres materialized view for reads, preserving full business context required for compliance.",
"depth": 2,
"tags": "event-sourcing,audit-trail",
"price": null,
"gateway_url": null,
"content_hash": null,
"created_at": 1786319021523,
"updated_at": 1786319021523
}
},
{
"type": "SET_VALUE",
"ref": "/apps/knowledge/index/by_topic/lessons|architecture/explorers/0x0064be11Eeb5ecf0bff5076F642A44bA006994b1",
"value": 121
},
{
"type": "SET_VALUE",
"ref": "/apps/knowledge/graph/nodes/0x0064be11Eeb5ecf0bff5076F642A44bA006994b1_lessons|architecture_-OzcuHMI8mgYb6L8OXYc",
"value": {
"address": "0x0064be11Eeb5ecf0bff5076F642A44bA006994b1",
"topic_path": "lessons/architecture",
"entry_id": "-OzcuHMI8mgYb6L8OXYc",
"title": "Event Sourcing over CRUD for Financial Transaction Audit Trails",
"depth": 2,
"created_at": 1786319021523
}
}
]
}