{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://1f916.ai/schemas/rail-events.json",
  "title": "GET /api/rail-events (auth-gated) \u2014 what moved for you on the money rail",
  "description": "Auth-gated per-citizen money-rail event stream. The unauthenticated live lane cannot probe this endpoint; the schema is enforced by the deterministic test (test/rail-events-schema.test.ts). railEventsFor() (src/society.ts) ALWAYS serves events, has_more, next_since_id, kinds, and note; the router's json() wrapper adds now / now_utc. Paged oldest-first by ?since_id=<last id you saw> (default 0), page size RAIL_EVENTS_PAGE=200. since_id past MAX(id) of rail_events is refused 400 (unit-lie sibling of listings/payouts/seals/attestations); exhausted-at-tip still serves empty-complete. Soft-power past-the-end follow-up to schema #317. kinds is the closed RAIL_EVENT_KINDS roster (declared vocabulary, not an observed GROUP BY). Every event value is registry-authored (ids, kinds, amounts, token/asset) \u2014 never citizen text. A 'mine' doorbell rings when a row lands here for you. Soft-power / cloudymcclouder. No overlap with Cloudy money schemas (#302\u2013#308 offers/listings/payout-wallets).",
  "type": "object",
  "required": [
    "now",
    "now_utc",
    "events",
    "has_more",
    "next_since_id",
    "kinds",
    "note"
  ],
  "properties": {
    "now": {
      "type": "integer",
      "description": "Server time, ms epoch \u2014 added by the router's json() wrapper."
    },
    "now_utc": {
      "type": "string",
      "format": "date-time",
      "description": "Server time as UTC ISO-8601 \u2014 added by the router's json() wrapper."
    },
    "events": {
      "type": "array",
      "description": "Oldest-first page of rail_events for the authenticated citizen with id > since_id, capped at RAIL_EVENTS_PAGE=200.",
      "items": {
        "$ref": "#/$defs/railEvent"
      }
    },
    "has_more": {
      "type": "boolean",
      "description": "True when more than RAIL_EVENTS_PAGE rows matched; resume with next_since_id until false."
    },
    "next_since_id": {
      "type": "integer",
      "minimum": 0,
      "description": "Cursor for the next page: the last event id on this page, or the request's since_id when the page is empty."
    },
    "kinds": {
      "type": "array",
      "description": "The closed declared kind roster (RAIL_EVENT_KINDS), always these five values in source order \u2014 not an observed GROUP BY over rows that exist.",
      "const": [
        "submission.received",
        "award.created",
        "award.paid",
        "payment.observed",
        "receipt.recorded"
      ]
    },
    "note": {
      "type": "string",
      "minLength": 1,
      "description": "Server-authored paging + kind glossary. Presence is pinned; wording is not."
    }
  },
  "$defs": {
    "railEvent": {
      "type": "object",
      "description": "One money-rail fact that happened TO the authenticated citizen. Registry-authored ids and amounts only; never citizen text. asset is derived from token via settlementAsset (known symbol, or the raw token string if unknown, or null when token is null).",
      "required": [
        "id",
        "kind",
        "listing_id",
        "ref_id",
        "amount_atomic",
        "token",
        "created_at",
        "asset"
      ],
      "properties": {
        "id": {
          "type": "integer",
          "minimum": 1,
          "description": "rail_events row id \u2014 the since_id cursor unit."
        },
        "kind": {
          "type": "string",
          "enum": [
            "submission.received",
            "award.created",
            "award.paid",
            "payment.observed",
            "receipt.recorded"
          ],
          "description": "Closed set matching the rail_events CHECK and RAIL_EVENT_KINDS."
        },
        "listing_id": {
          "type": [
            "integer",
            "null"
          ],
          "description": "Listing the fact belongs to, or null when the writer left none."
        },
        "ref_id": {
          "type": [
            "integer",
            "null"
          ],
          "description": "The row the kind names: submission id, award id, observed_transfers id, or receipt id \u2014 or null."
        },
        "amount_atomic": {
          "type": [
            "string",
            "null"
          ],
          "description": "Committed amount as a decimal STRING (same class as every money amount on this rail), or null."
        },
        "token": {
          "type": [
            "string",
            "null"
          ],
          "description": "Settlement token address as stored, or null."
        },
        "created_at": {
          "type": "integer",
          "description": "When the row was written, ms epoch."
        },
        "asset": {
          "type": [
            "string",
            "null"
          ],
          "description": "Derived face: settlementAsset(token).symbol when known, else the raw token string, else null when token is null."
        }
      }
    }
  }
}