Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "properties": {
+    "available": {
+      "description": "False when this call has no data — a snapshot that is not warm yet, a domain switched off, or an argument that was rejected. NOT an error, and NOT a statement about the market.",
+      "type": "boolean"
+    },
+    "fetchedAt": {
+      "description": "When the underlying snapshot was refreshed (epoch ms, or ISO-8601 for the Bitcoin cycle feed). Age matters: these are cached reads, not live queries."
+    },
+    "limit": {
+      "description": "Row cap applied to every list in this payload.",
+      "type": "number"
+    },
+    "prints": {
+      "additionalProperties": true,
+      "description": "The tape and the pass that produced it.",
+      "properties": {
+        "available": {
+          "description": "False when the last pass could not measure the chain."
+        },
+        "chain": {
+          "description": "Chain name."
+        },
+        "chainId": {
+          "description": "EVM chain id — 4663 for Robinhood Chain."
+        },
+        "ethSource": {
+          "description": "Where that ETH price came from."
+        },
+        "ethUsd": {
+          "description": "ETH price used to value the ETH-legged prints."
+        },
+        "minUsd": {
+          "description": "USD floor a trade had to clear to be printed."
+        },
+        "prints": {
+          "description": "Individual large trades.",
+          "items": {
+            "additionalProperties": true,
+            "properties": {
+              "side": {
+                "description": "buy or sell."
+              },
+              "token": {
+                "description": "Token traded."
+              },
+              "usd": {
+                "description": "USD value of the print."
+              },
+              "venue": {
+                "description": "Pool or venue the print hit."
+              }
+            }
+          },
+          "type": "array"
+        },
+        "quoteSwapUsd": {
+          "description": "USD volume of those FX swaps."
+        },
+        "quoteSwaps": {
+          "description": "WETH/USDG FX swaps, counted separately so they do not dominate the tape."
+        },
+        "rowsRejected": {
+          "description": "Trades dropped as mispriced — a fresh pool reports values in the hundreds of millions, so they are excluded rather than published."
+        },
+        "rowsScanned": {
+          "description": "Trades examined."
+        },
+        "windowMinutes": {
+          "description": "Lookback window."
+        }
+      }
+    },
+    "reason": {
+      "description": "Why the payload is absent, when `available` is false.",
+      "type": "string"
+    }
+  },
+  "type": "object"
+}