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Evidence row 124607

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://www.taifoon.io/api/coordination/x402/class/mcp.digest
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
304d605663a6a9bc1643c1c945f742ab1a10996dd0a28dab3d53c8b11adb8a94
Leaf
0x27e72e2d8a26a6640ab43e493f8b483bc56e130277f85e67d3f26870953bdc8f

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://www.taifoon.io/api/coordination/x402/class/mcp.digest"
    ]
  ],
  "name": "Taifoon",
  "owner_address": "0x3574999dd4c96eb73bd6e11d4177010c83e14f5b",
  "raw": {
    "accepts": [
      {
        "amount": "8645",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC.",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "8645",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
        "resource": "https://www.taifoon.io/api/coordination/x402/class/mcp.digest",
        "scheme": "exact"
      },
      {
        "amount": "8645",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "description": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC.",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "8645",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:42161",
        "payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
        "resource": "https://www.taifoon.io/api/coordination/x402/class/mcp.digest",
        "scheme": "exact"
      },
      {
        "amount": "8645",
        "asset": "0x3600000000000000000000000000000000000000",
        "description": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC.",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxAmountRequired": "8645",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:5042",
        "payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
        "resource": "https://www.taifoon.io/api/coordination/x402/class/mcp.digest",
        "scheme": "exact"
      },
      {
        "amount": "8645",
        "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
        "description": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC.",
        "extra": {
          "name": "Global Dollar",
          "version": "1"
        },
        "maxAmountRequired": "8645",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:4663",
        "payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
        "resource": "https://www.taifoon.io/api/coordination/x402/class/mcp.digest",
        "scheme": "exact"
      },
      {
        "amount": "8645",
        "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
        "description": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC.",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxAmountRequired": "8645",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:143",
        "payTo": "0x3574999dd4c96eB73Bd6e11D4177010C83E14f5b",
        "resource": "https://www.taifoon.io/api/coordination/x402/class/mcp.digest",
        "scheme": "exact"
      },
      {
        "amount": "8645",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "description": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC.",
        "extra": {
          "feePayer": "F742C4VfFLQ9zRQyithoj5229ZgtX2WqKCSFKgH2EThq"
        },
        "maxAmountRequired": "8645",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GQcEn5pLcweo7qaiy3rDdsiUPiygygmFBaixNtNqhQVD",
        "resource": "https://www.taifoon.io/api/coordination/x402/class/mcp.digest",
        "scheme": "exact"
      }
    ],
    "description": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": {
                "algorithm": "sha256",
                "text": "hello world"
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "answer": "…the seller’s answer…",
              "checks": {
                "content": true
              },
              "class": "mcp.digest",
              "ok": true,
              "sale": {
                "id": "rs_…",
                "payment_tx": "0x…"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "input": {
                      "properties": {
                        "algorithm": {
                          "enum": [
                            "sha256",
                            "keccak256"
                          ],
                          "type": "string"
                        },
                        "text": {
                          "description": "the text, as the task quotes it (UTF-8)",
                          "type": "string"
                        }
                      },
                      "required": [
                        "algorithm",
                        "text"
                      ],
                      "type": "object"
                    }
                  },
                  "required": [
                    "input"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791930045/bazaar-icons/4c3bc9abe8ba2916.png",
    "lastUpdated": "2026-10-25T19:01:07.011Z",
    "quality": {
      "l30DaysTotalCalls": 13,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-25T19:01:06.604Z"
    },
    "resource": "https://www.taifoon.io/api/coordination/x402/class/mcp.digest",
    "serviceName": "Taifoon",
    "tags": [
      "mcp",
      "digest"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "mcp.digest, sold by Taifoon: 8 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.008645 USDC."
}

What the leaf hashes

{"body":"304d605663a6a9bc1643c1c945f742ab1a10996dd0a28dab3d53c8b11adb8a94","id":124607,"kind":"listing","method":"baseline/1","observed_us":1793025625010832,"prev":null,"subject":"x402_bazaar:https://www.taifoon.io/api/coordination/x402/class/mcp.digest","subject_kind":"source_record"}

Proof

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

  1. 0x27e6f688de9180cd6f8a9bc7bacb466ae82b12c5b8071b1feece8a9002d2ad18
  2. 0x7141f06879bb1040bdf053e111e04be83374b05ffd56020c15c04cc1f1648201
  3. 0x21b580074114ccbe572e8002a0baead8244d58fcd9c9f742070022ad132882d0
  4. 0x17f4f270225bee7c19dc9050416ac398e0cc840be0e78a3731fbc33a7a962149
  5. 0x673a01fb82a102f5d3027cb2282f479249be6d1024a9153ebfc2c09239c43609
  6. 0x0df605f21b2db2f42e51502391680e7ffe0334bec2fffdbbb1a65c176dc61ce9
  7. 0xc77714c0f836530bd42c00fc672ac0e19a3f5b112964a7f0373cced470db3ce3
  8. 0x309401d26932ab16720877e1305f1d7cfeb2aebb0bd8053d35bb0de2577de01a
  9. 0xb90db75153412749cd9c1e85cf33981db6866302ce98af739f7105034c9a2940
  10. 0xb9539f916d8858b917982771c3c35856f76a0227e873d74b6512aa1ace7dcdd0
  11. 0x4052d44b5530fb76c2eaae6028a8353bb8a3d80e4775a2c7996dfad1e2cad4af
  12. 0x364047261f51ecdbe278514b4f415358118ef4644f7124e15a40f80a86f6a05b
  13. 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
  14. 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
  15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
  16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON