Evidence row 435839

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.fairseal.io/v1/notarize"
    ]
  ],
  "name": "x402.fairseal.io/v1/notarize",
  "owner_address": "0xbd5eb5559f5ac14475ac0c81b6735a4d9106ce28",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xBd5eB5559f5Ac14475AC0C81b6735A4d9106ce28",
        "scheme": "exact"
      },
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
          "version": "2",
          "withdrawDelay": 900
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xBd5eB5559f5Ac14475AC0C81b6735A4d9106ce28",
        "scheme": "batch-settlement"
      }
    ],
    "description": "Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues into a Merkle batch and returns a receipt with pending_anchor status immediately. Full Merkle proof and on-chain anchor_tx available via free GET /v1/notarize/:receipt_id after batch anchors (within batch_threshold receipts or 120s). Include Idempotency-Key header to prevent double-charges on retry.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "metadata": {
                "agent_id": "my-agent-v1",
                "decided_at": "2026-09-12T10:00:00Z",
                "decision_hash": "b94f6f125c79e3a5ffaa826f584c10d52ada669e6762051b826b55776d05a3d7",
                "input_hash": "a665a45920422f9d417e4867efdc4fb8a04a1f3fff1fa07e998e86f7f7a27ae3"
              },
              "payload_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
              "schema": "agent_decision"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "metadata": {
                      "description": "Schema-specific metadata. agent_decision requires {agent_id, decided_at, input_hash, decision_hash}",
                      "type": "object"
                    },
                    "payload_hash": {
                      "description": "SHA-256 hex of full payload (64 lowercase hex chars)",
                      "pattern": "^[0-9a-f]{64}$",
                      "type": "string"
                    },
                    "schema": {
                      "enum": [
                        "agent_decision",
                        "audit_evidence",
                        "probe_record"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "schema",
                    "payload_hash",
                    "metadata"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-17T13:52:00.754Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-17T13:52:01.325Z"
    },
    "resource": "https://x402.fairseal.io/v1/notarize",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Anchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues into a Merkle batch and returns a receipt with pending_anchor status immediately. Full Merkle proof and on-chain anchor_tx available via free GET /v1/notarize/:receipt_id after batch anchors (within batch_threshold receipts or 120s). Include Idempotency-Key header to prevent double-charges on retry."
}

What the leaf hashes

{"body":"1b4f8c63a36b1f5177f4bf9d05bf3c1682c280123269ab6313512c4dee187b04","id":435839,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086711028518,"prev":126057,"subject":"x402_bazaar:https://x402.fairseal.io/v1/notarize","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xebd2745c503e615d2e8d465d4e80ee4be4144bf91e627e15c25f1ef1ffdaccb1
2. 0xd18ba7a17b64d9a597c0e37c74e36e134aad01c336504db251bfc30931f8324f
3. 0x0a9ce84478b82d09c4fa1242eb6c7e5f63bec94d41b909473055367dfd77a8aa
4. 0x62e3d7003ac028292ff725cf82d44ad8c9f1f3261dbd56e40b6538e3840d8ffd
5. 0x2864f2159a2755142d5d5e297ad5fc7502d39940d762e69af49e694fba0f1b4d
6. 0x042a244da00113e50e43e016756386bbce1567d2512582a1ff48422383d911e8
7. 0x77be4047b44495fbbd004b33e402d78d47106974948a9c7fb260983eacc144eb
8. 0x4aeac326d81b9bdf298f6e69ca75a0952c2d2b5b61a895119d767a9bcf4e8680
9. 0x45e8689a64228e5a0ea7f04a80dae2f11cc628a3d7aedc6d0744cd500c6d6021
10. 0xdaf848f74770c7306d5ce0afa39fe9e157a88d16c1379890545e1752b9240a2a
11. 0x8d7aa81f73a59db43b926bc8fc89ae1cba0632ecf1e5b94b087e267f66888fba
12. 0x71d164c799d87b4dc25af672a70aaf73791d8dbb1786a5d4eb3ead269cb7c28a
13. 0x89602081fbcc80aef8908f5df765767a1a41cc8b089111259ea78e6583a8bc4b
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4