Evidence row 118719

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://preipo-feed.vercel.app/preipo/anthropic/ipo"
    ]
  ],
  "name": "PreIPO Feed by Aaron Zhang",
  "owner_address": "0x4b5887b6e399c2e104becd01f7c406229c15891d",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4b5887B6E399C2E104becd01f7c406229c15891d",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:84532",
        "payTo": "0x4b5887B6E399C2E104becd01f7c406229c15891d",
        "scheme": "exact"
      }
    ],
    "description": "Anthropic IPO data as JSON: filing status (confidential draft S-1), expected timing and listing window, target valuation range, expected proceeds, lead underwriters, last private round (Series H) size and valuation, run-rate revenue, valuation multiples, dated timeline. Each item has its own source URL and verification grade.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-01",
              "company": "Anthropic",
              "dataset": "ipo",
              "metrics": [
                {
                  "id": "last_private_round_size_2026_05",
                  "label": "Last private round size (Series H)",
                  "value": 65000000000
                }
              ],
              "sources": [
                {
                  "date": "2026-05-28",
                  "publisher": "Anthropic",
                  "type": "company announcement",
                  "url": "https://www.anthropic.com/news/series-h"
                }
              ],
              "verification": "mixed"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T09:32:08.391Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T09:32:08.228Z"
    },
    "resource": "https://preipo-feed.vercel.app/preipo/anthropic/ipo",
    "serviceName": "PreIPO Feed by Aaron Zhang",
    "tags": [
      "anthropic",
      "ipo",
      "pre-ipo",
      "valuation",
      "underwriters"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Anthropic IPO data as JSON: filing status (confidential draft S-1), expected timing and listing window, target valuation range, expected proceeds, lead underwriters, last private round (Series H) size and valuation, run-rate revenue, valuation multiples, dated timeline. Each item has its own source URL and verification grade."
}

What the leaf hashes

{"body":"30331d676c2260cfadd4d95bb42c618f80a355063319974267d2c1eeab4de5da","id":118719,"kind":"listing","method":"baseline/1","observed_us":1793025613632174,"prev":null,"subject":"x402_bazaar:https://preipo-feed.vercel.app/preipo/anthropic/ipo","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. 0x8b61ae52bedd4d18b3c66343b6cfbac7a8008cf1e52907befcbac292509c80ce
2. 0xfb401a29caa7ac8a16a975d3a60555a63530255f7aecc9d208911a7bc29624ca
3. 0x4cac590a7da541fdfb51f6b70e2682d8b064829dcbcf883e02e0b80e4584afdc
4. 0xe8e3720857d1f56f5c5b8faba47c1f9b9d1f54810ec1e6298473b03bae1fd356
5. 0x7c0f86be6dbd1ed9825d6946e994c10266e83957bc2128f15faf691ab82497cd
6. 0x9922cb0fea5727af91ee10a4bd561e11068dde9e7ffac7348bf0601debd2f53c
7. 0xc1e9cf7e5feafebf12bef2df6a27846cb872b2a130ccff8d744dce127dec0308
8. 0x7dd260ea084041256f1535577f0c6c635fe90d33efe4485724eed1e9db4dbda6
9. 0xee88fbeb53bd37ff3d897ec35c283d35063b90a3724c4194b03f948ccf02349f
10. 0x06e192564a33f8e5303c5b3f24c4a64be258d0a0274ef3cfee7f4221b7582bc5
11. 0x7d887da17795602ff54a7a2d145692904e47f8d3ab035b8db85d274d00bc9bfe
12. 0x8cb11bf3bc7d3a6f859c170a167821024ffc4758cdfd2cc96f61a3291aefb637
13. 0xd5ec7ffaecac790d8adfa0620b0a5494758f862e3090b49e556a6ecbad2f0782
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae