Evidence row 75687

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://gaming.halowerk.com/v1/matchmaking-mmr"
    ]
  ],
  "name": "HALOWERK gamingwerk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "recipient": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Enumerates feasible player pairs, ranks them by rating gap then worst latency, and greedily selects disjoint pairs. This is a transparent local pairing heuristic, not globally optimal team balancing, skill inference, anti-smurfing, or a live queue service.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "bodyType": "json",
            "exampleUrl": "https://gaming.halowerk.com/v1/matchmaking-mmr/schema#/requestExample",
            "method": "POST",
            "schemaUrl": "https://gaming.halowerk.com/v1/matchmaking-mmr/schema#/inputSchema",
            "type": "http"
          },
          "output": {
            "example": {
              "feasible_pair_count": 2,
              "matches": [
                {
                  "expected_score_first_player": 0.449801,
                  "players": [
                    "p1",
                    "p2"
                  ],
                  "rating_gap": 35,
                  "worst_latency_ms": 42
                },
                {
                  "expected_score_first_player": 0.571463,
                  "players": [
                    "p3",
                    "p4"
                  ],
                  "rating_gap": 50,
                  "worst_latency_ms": 39
                }
              ],
              "method": "deterministic greedy pairing by rating gap then latency",
              "optimization_scope": "greedy_two_player_pairing",
              "unmatched_player_ids": []
            },
            "exampleUrl": "https://gaming.halowerk.com/v1/matchmaking-mmr/schema#/outputExample",
            "schemaUrl": "https://gaming.halowerk.com/v1/matchmaking-mmr/schema#/outputSchema",
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": true,
          "properties": {
            "input": {
              "additionalProperties": true,
              "properties": {
                "bodyType": {
                  "const": "json"
                },
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "method": {
                  "const": "POST"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType"
              ],
              "type": "object"
            },
            "output": {
              "additionalProperties": true,
              "properties": {
                "exampleUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "schemaUrl": {
                  "format": "uri",
                  "type": "string"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T22:01:21.094Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-25T22:01:20.682Z"
    },
    "resource": "https://gaming.halowerk.com/v1/matchmaking-mmr",
    "serviceName": "HALOWERK gamingwerk",
    "tags": [
      "iot",
      "gaming",
      "matchmaking"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Enumerates feasible player pairs, ranks them by rating gap then worst latency, and greedily selects disjoint pairs. This is a transparent local pairing heuristic, not globally optimal team balancing, skill inference, anti-smurfing, or a live queue service."
}

What the leaf hashes

{"body":"90c219bb0f24691e9c9db10c7dc0f23772d5f861a88a5268923a1eb604e96270","id":75687,"kind":"listing","method":"baseline/1","observed_us":1793025490988655,"prev":null,"subject":"x402_bazaar:https://gaming.halowerk.com/v1/matchmaking-mmr","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. 0xcfc9944af1aec80b88c716a7613025168b5cfcb3b9d991424f4b3ca1f023e5ec
2. 0x606f8c4edb47b7b41f9e9407b9871077e0f82d1cdaa21244a767527e4957558c
3. 0xb42f0c24dc9b8c6641b4d1b26d8f2f2b282cc542e7ffac88096e460ee609a332
4. 0x928da6e8f61e24adc4db2f578be7f7df74b7a044670c32e2efbfbb1ba4767ca0
5. 0xb736847b64c3cd9ef9a4c0de4ec6a411a6503e2d60873e31606c1e092364a0eb
6. 0xf146988feb86e24b39696e0c86ab04ff872381048992d7efa54050a3f66a70a9
7. 0x8767ec6fc81403e17bd9bd70a7971210f4a2929caabe84b5c962d385d023e8ab
8. 0x192cc4a876c9648278f5ac181ec9a7d3ae4cc95356cf384d497637ce39c4834b
9. 0x52dbc4ae429376c97213f4f84a5eeadb0bf802c0f8c263e05a04c4f3fe6b0f2b
10. 0x0b686dbafff3016a42481f12f34ebfe6ab887a7ca8848d16b83a5946fcda3181
11. 0x026c75973d292b16fc9c1aefff047e2e4656075d16803275f6ae428cf2826ee1
12. 0x3f401930661bff9a668037b662b5b8766fa60035f100a3e9fc585c576d892ffa
13. 0xe43762a621da83c0b4b63f549cd2e19c428ac702bfc1038d70233867b06c447f
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae