Evidence row 278220

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.glassnode.com/v1/metrics/institutions/us_spot_etf_flows_net"
    ]
  ],
  "name": "Glassnode",
  "owner_address": "0x1f81da453901d15296c1710af83e0bc0371d39f1",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1f81da453901D15296c1710af83e0Bc0371D39f1",
        "scheme": "exact"
      }
    ],
    "description": "US Spot ETF Net Flows — The total net fund flow of the leading U.S.-listed spot Crypto ETFs, reflecting day-to-day changes in their holdings. Covers major Bitcoin ETFs (e.g. IBIT, GBTC, FBTC, ARKB, BITB) and Ethereum ETFs (e.g. ETHA, ETHE, FETH, ETHV, QETH) from issuers such as BlackRock, Grayscale, Fidelity, Bitwise, and VanEck. Data by Glassnode.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "a": "BTC",
              "i": "24h"
            },
            "type": "http"
          },
          "output": {
            "example": [
              {
                "t": 1782172800,
                "v": -2805.094660649984
              }
            ],
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "a": {
                      "description": "Asset symbol, e.g. BTC, ETH",
                      "enum": [
                        "AVAX",
                        "BNB",
                        "BTC",
                        "DOGE",
                        "DOT",
                        "ETH",
                        "HBAR",
                        "HYPE",
                        "LINK",
                        "LTC",
                        "SOL",
                        "SUI",
                        "XAG",
                        "XAU",
                        "XRP"
                      ],
                      "type": "string"
                    },
                    "c": {
                      "description": "Currency for denominated values, e.g. usd, native",
                      "enum": [
                        "native",
                        "usd"
                      ],
                      "type": "string"
                    },
                    "f": {
                      "description": "Response format: json or csv",
                      "enum": [
                        "csv",
                        "json"
                      ],
                      "type": "string"
                    },
                    "i": {
                      "description": "Time interval / resolution, e.g. 24h, 1w, 1month",
                      "enum": [
                        "1month",
                        "1w",
                        "24h"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "a"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "items": {
                    "properties": {
                      "t": {
                        "type": "number"
                      },
                      "v": {
                        "type": "number"
                      }
                    },
                    "type": "object"
                  },
                  "type": "array"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T13:38:31.957Z",
    "quality": {
      "l30DaysTotalCalls": 19,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-26T13:38:37.719Z"
    },
    "resource": "https://x402.glassnode.com/v1/metrics/institutions/us_spot_etf_flows_net",
    "serviceName": "Glassnode",
    "tags": [
      "glassnode",
      "crypto",
      "on-chain",
      "analytics",
      "metrics"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "US Spot ETF Net Flows — The total net fund flow of the leading U.S.-listed spot Crypto ETFs, reflecting day-to-day changes in their holdings. Covers major Bitcoin ETFs (e.g. IBIT, GBTC, FBTC, ARKB, BITB) and Ethereum ETFs (e.g. ETHA, ETHE, FETH, ETHV, QETH) from issuers such as BlackRock, Grayscale, Fidelity, Bitwise, and VanEck. Data by Glassnode."
}

What the leaf hashes

{"body":"83e81a5306f06d5fa88378175ca0325760843c49f2574f3528cef7860abb7002","id":278220,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042058781092,"prev":7780,"subject":"x402_bazaar:https://x402.glassnode.com/v1/metrics/institutions/us_spot_etf_flows_net","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xb8c1c8c619ff91ceccde4b598ede0c590423ad523ac44e3d416d784b0f1bdee4
2. 0x1d72e0226494e9f8eb47c3fde362207fcc50578b2c9cbc28768c0115b5d6bed0
3. 0x3af9359af3e11bebb0201e7e4e6a7ae466c320f6c0be520f1abcb0995250c8d1
4. 0x63f393d09d11bb5a7f0dd84e7ec9feb6fb49c15d5a99c65758b4b9b001ed977e
5. 0xbe6aa65494e88a0424778540122f85132e3d0345f19ddcc94b2af3ab45316c50
6. 0x6d932ad1660db93d39aefeaa5d9dd8438a0ac7f93fecddafdd1678ee9224310c
7. 0xba3d423fd8cb120c91dad6d27030ea385e14164a545929bb3d0f07c49b8477df
8. 0x3bb49657ba9f9874d29731256da0cb43dc3a56093998f316a5a1c44770aa9e94
9. 0x3e22965437ad0de1b511721c0d328319e39da6fec796fed49f0bbfb4d3539221
10. 0x258835beede438ebebc963b639363480e6d4ea3839ccb62aeaaad82cefc2fe04
11. 0xcf50b54d8921f0c22877e0b8d6b8393a1954218f000f7cac374e9f40a024f700
12. 0xb6efd79902cac6d5a402ebecb8069402f00961ab80cd71b4d647fbc686d975ec
13. 0x2f43fe2b2533a5f40c107c114e458e226102f5f8ae91f097e964345880e30928
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae