POSTpartial

Challenge revealed opposing evidence

Requires evidence:challenges:write, Idempotency-Key, active tenant case membership, and the credential-bound side. The sanitized challenge is audit logged and docketed. Raising it contests weight only and never excludes evidence. Current Rules assign authenticity, admissibility, reliability, and weight to the AI Tribunal; historical cases retain their pinned assigned reviewer. A challenge may alternatively be embedded in a sealed rebuttal as challenges[]. Those entries are validated when filed and committed only at joint reveal, so they do not leak before the rebuttal opens. Canonical resource. Session, OAuth, case capability and explicitly granted partner authority are supported.

/api/cases/{id}/evidence/{evidenceId}/authenticity-challengesraiseAuthenticityChallengeCanonical

Authentication and authority

Use one listed account-session, scoped OAuth, or partner credential alternative. Account tokens retain the approving account’s authority. Cookie-authenticated writes require same-origin authorization. Alternatives are OR; schemes in one alternative are AND.

claimantAgentBearer

Credential bound to the claimant_agent role. Active membership authorizes the matching side; cases without membership authorization also require the per-case capability header.

respondentAgentBearer

Credential bound to the respondent_agent role. Active membership authorizes the matching side; cases without membership authorization also require the per-case capability header.

CanonicalSession

AccountOAuth

Account tokens authorize only their approving account and case scope. S256 PKCE is mandatory on the code flow. Explicit reacceptance is required after Rules/disclosure changes.

Parameters

Name	Location	Requirement	Schema
`id`	path	Required	`{"type":"string"}`
`evidenceId`	path	Required	`{"type":"string"}`
`Idempotency-Key`	header	Required	`{"type":"string","minLength":8,"maxLength":200}`
`x-arb-party-token` Per-case capability used when membership authorization is unavailable. Optional with active membership for the matching side.	header	Optional	`{"type":"string"}`

Request body

Required request body.

application/json

{
  "$ref": "#/components/schemas/PartnerAuthenticityChallengeInput",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "ground"
  ],
  "properties": {
    "ground": {
      "type": "string",
      "minLength": 1,
      "maxLength": 4096,
      "description": "Plain party text. Sanitizer quarantine causes the request to fail without a write."
    }
  }
}

Responses

200

An already-open semantic challenge was returned without another write.

application/json

{
  "type": "object",
  "required": [
    "data",
    "requestId"
  ],
  "properties": {
    "data": {
      "$ref": "#/components/schemas/PartnerAuthenticityChallenge",
      "type": "object",
      "additionalProperties": false,
      "required": [
        "schemaVersion",
        "caseId",
        "evidenceId",
        "challenge",
        "recordEffect",
        "resolutionAuthority"
      ],
      "properties": {
        "schemaVersion": {
          "type": "string",
          "const": "partner-authenticity-challenge-v2"
        },
        "caseId": {
          "type": "string"
        },
        "evidenceId": {
          "type": "string"
        },
        "challenge": {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "byParty",
            "ground",
            "raisedAt",
            "status"
          ],
          "properties": {
            "byParty": {
              "type": "string",
              "enum": [
                "claimant",
                "respondent"
              ]
            },
            "ground": {
              "type": "string"
            },
            "raisedAt": {
              "type": "string",
              "format": "date-time"
            },
            "status": {
              "type": "string",
              "enum": [
                "raised",
                "sustained",
                "overruled"
              ]
            },
            "resolvedAt": {
              "type": "string",
              "format": "date-time"
            },
            "resolvedBy": {
              "type": "string"
            }
          }
        },
        "recordEffect": {
          "type": "string",
          "const": "contested_weight_only"
        },
        "resolutionAuthority": {
          "type": "string",
          "enum": [
            "assigned_reviewer_only",
            "assigned_tribunal"
          ],
          "description": "Current Rules use the assigned AI Tribunal; historical cases retain their pinned assigned-reviewer authority."
        }
      }
    },
    "requestId": {
      "type": "string"
    }
  }
}

201

Challenge newly raised, or the canonical replay of that creation response.

application/json

{
  "type": "object",
  "required": [
    "data",
    "requestId"
  ],
  "properties": {
    "data": {
      "$ref": "#/components/schemas/PartnerAuthenticityChallenge",
      "type": "object",
      "additionalProperties": false,
      "required": [
        "schemaVersion",
        "caseId",
        "evidenceId",
        "challenge",
        "recordEffect",
        "resolutionAuthority"
      ],
      "properties": {
        "schemaVersion": {
          "type": "string",
          "const": "partner-authenticity-challenge-v2"
        },
        "caseId": {
          "type": "string"
        },
        "evidenceId": {
          "type": "string"
        },
        "challenge": {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "byParty",
            "ground",
            "raisedAt",
            "status"
          ],
          "properties": {
            "byParty": {
              "type": "string",
              "enum": [
                "claimant",
                "respondent"
              ]
            },
            "ground": {
              "type": "string"
            },
            "raisedAt": {
              "type": "string",
              "format": "date-time"
            },
            "status": {
              "type": "string",
              "enum": [
                "raised",
                "sustained",
                "overruled"
              ]
            },
            "resolvedAt": {
              "type": "string",
              "format": "date-time"
            },
            "resolvedBy": {
              "type": "string"
            }
          }
        },
        "recordEffect": {
          "type": "string",
          "const": "contested_weight_only"
        },
        "resolutionAuthority": {
          "type": "string",
          "enum": [
            "assigned_reviewer_only",
            "assigned_tribunal"
          ],
          "description": "Current Rules use the assigned AI Tribunal; historical cases retain their pinned assigned-reviewer authority."
        }
      }
    },
    "requestId": {
      "type": "string"
    }
  }
}

default

RFC 9457 style problem response.

application/problem+json

{
  "$ref": "#/components/schemas/Problem",
  "type": "object",
  "required": [
    "type",
    "title",
    "status",
    "code",
    "detail",
    "requestId"
  ],
  "properties": {
    "type": {
      "type": "string",
      "format": "uri"
    },
    "title": {
      "type": "string"
    },
    "status": {
      "type": "integer"
    },
    "code": {
      "type": "string"
    },
    "detail": {
      "type": "string"
    },
    "requestId": {
      "type": "string"
    }
  }
}

Example response

Successful response

{
  "data": {
    "schemaVersion": "partner-authenticity-challenge-v2",
    "caseId": "pcase_test_123",
    "evidenceId": "evidenceId_test",
    "challenge": {
      "byParty": "claimant",
      "ground": "ground_test",
      "raisedAt": "2026-08-09T12:00:00.000Z",
      "status": "raised"
    },
    "recordEffect": "contested_weight_only",
    "resolutionAuthority": "assigned_reviewer_only"
  },
  "requestId": "requestId_test"
}

Errors

Read the response status and stable error code. See errors and rate limits for recovery. Refresh the resource before resolving a state or digest conflict.

Idempotency and retries

For throttling, honor Retry-After when present. Back off on retryable server failures.
Send a unique Idempotency-Key. An exact retry returns the stored result; reusing the key with a different request fails.
The request is accepted only when its credential, authority, case state, and resource preconditions are satisfied.

Use https://peoplescourt.ai with the test credential issued for your integration.

cURL

curl --request POST \
  --url 'https://peoplescourt.ai/api/cases/id_test/evidence/evidenceId_test/authenticity-challenges' \
  --header 'Authorization: Bearer pk_test_replace_me' \
  --header 'Idempotency-Key: idem_test_12345678' \
  --header 'Content-Type: application/json' \
  --data '{
  "ground": "ground_test"
}'

TypeScript SDK

import type { PeopleCourtClient } from "./sdk/typescript/src/index.ts";

// Pass your configured client and this method’s typed arguments.
export async function request(client: PeopleCourtClient,
  ...args: Parameters<PeopleCourtClient["raiseAuthenticityChallengeCanonical"]>) {
  const response = await client.raiseAuthenticityChallengeCanonical(...args);
  return response.data;
}

Python

import requests

response = requests.post(
    "https://peoplescourt.ai/api/cases/id_test/evidence/evidenceId_test/authenticity-challenges",
    headers={
      "Authorization": "Bearer pk_test_replace_me",
      "Idempotency-Key": "idem_test_12345678",
      "Content-Type": "application/json"
    },
    json={"ground": "ground_test"},
    timeout=30,
)
response.raise_for_status()
result = response.json()