Evidence row 118724

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://preipo-feed.vercel.app/preipo/openai/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": "OpenAI IPO data as JSON: confidential S-1 filing status and announcement date, reported 2027 listing expectations, Sam Altman ruling out a 2026 IPO, latest verified private funding round committed capital and post-money valuation, banks reported working on filing preparation (not confirmed underwriting mandates), and dated timeline. Each factual item has a source reference and verification grade; uncertain dates and unverified figures are omitted.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-06",
              "company": "OpenAI",
              "dataset": "ipo",
              "metrics": [
                {
                  "id": "last_private_round_size_2026_03",
                  "label": "Latest verified closed private round: committed capital (not cash received)",
                  "value": 122000000000
                }
              ],
              "sources": [
                {
                  "date": "2026-03-31",
                  "publisher": "OpenAI",
                  "type": "company announcement; committed capital, not cash received",
                  "url": "https://openai.com/index/accelerating-the-next-phase-ai/"
                }
              ],
              "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": "2026-10-08T09:37:16.877Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T09:37:16.735Z"
    },
    "resource": "https://preipo-feed.vercel.app/preipo/openai/ipo",
    "serviceName": "PreIPO Feed by Aaron Zhang",
    "tags": [
      "openai",
      "ipo",
      "pre-ipo",
      "valuation",
      "funding"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "OpenAI IPO data as JSON: confidential S-1 filing status and announcement date, reported 2027 listing expectations, Sam Altman ruling out a 2026 IPO, latest verified private funding round committed capital and post-money valuation, banks reported working on filing preparation (not confirmed underwriting mandates), and dated timeline. Each factual item has a source reference and verification grade; uncertain dates and unverified figures are omitted."
}

What the leaf hashes

{"body":"9dfcb72b5d4784d2185ceb0dd9608571642944ea317f86e5dfb2b350a70f9940","id":118724,"kind":"listing","method":"baseline/1","observed_us":1793025613636830,"prev":null,"subject":"x402_bazaar:https://preipo-feed.vercel.app/preipo/openai/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. 0x1e10538c3037f89a9f9881b6aaabf5cc52871729eea232c74cc9fec21a2e8b0a
2. 0x6306f8e4de62a15aa6295c27ec73b181dbba6942924fb60c1346ca9d8bd4dafc
3. 0x3726591673722dadb18f1da1eebde87163c81dbe5ac0227f633fef4f147fb63e
4. 0xc92568fc62040bfd5671b1a1f302942d9c679ef528766e6e19c7ddb33f343e88
5. 0x8de063a3003ba012df127128d91c29b138d96890d77d56f169283d7ea6fd14dc
6. 0x4eab594a79d5ca71906f55c21348060ff7defd2c4ab4f1a0c5f2ed38be1fd797
7. 0xe1ab50a269ee024e25d8fba78ce9c7770bcad2467664fb3bfd0bdfa319f3bcb9
8. 0xce9b7e4bdc738c6d62f33f45370fd61aac9fb9489d5121e97313de863e8b5047
9. 0x39b8e29865fbd92f41416dc25108934c5310755d093e4bda1b3dbd6b131aaf6a
10. 0x25369e64d1405d0c4e7fe9646ccf55bf37eedc440887efa43e03c57f5c2a6707
11. 0xf0f77ed1d484625ddaf2f6e58baa64c9dec47a22b1a6beb91219a17bddac7dfa
12. 0x8e3531af6dd328ff9a174dd19751228f67fa0773c68a89edf859dffbd7b098c3
13. 0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
14. 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae