{
  "x402Version": 2,
  "id": 9071,
  "slug": "9071",
  "resource": "https://soren.com/v1/attestation",
  "description": "A signed, timestamped statement that a specific SHA-256 was presented to Soren at a given moment. Use it when a counterparty must check that your output existed by then. You send only the hash — we never receive your content, so there is nothing to leak or be compelled to produce. An agent signing its own output proves nothing to anyone else. Not a legal notarisation, not proof of authorship, not proof it existed earlier. Verify with soren.com/oracle-key.json",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "20000",
      "maxTimeoutSeconds": 120
    },
    {
      "scheme": "exact",
      "network": "base",
      "payTo": "0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "20000",
      "maxTimeoutSeconds": 120
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
            "note": "model output v3"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "attested": true,
            "hash": "<64 hex>",
            "observed_at": "<ISO-8601 UTC>",
            "signature": {
              "algorithm": "Ed25519",
              "value": "<base64>"
            },
            "statement": "attestation|<hash>|<observed_at>"
          },
          "type": "json"
        }
      },
      "routeTemplate": "/v1/attestation",
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "hash": {
                    "description": "SHA-256 of your content, 64 lowercase hex characters. Hash it yourself.",
                    "examples": [
                      "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
                    ],
                    "type": "string"
                  },
                  "note": {
                    "description": "Up to 200 characters, included in the signed statement.",
                    "examples": [
                      "model output v3"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "hash"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          }
        }
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "soren.com",
  "lastUpdated": "2026-09-08T01:15:18.121Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-08T01:15:17.819Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "soren.com",
    "manifest_name": "soren.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}