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  "description": "Notarize AI output in bulk: one signed Ed25519 attestation of the model response per record for up to 20 AI inferences in a single call — same content hash, receipt token, and anchor status as single notarization, giving you a cryptographic receipt for inference across an entire audit-trail pipeline.",
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                "model_id": "claude-fable-5",
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                "response": "Paris"
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              {
                "algorithm": "ed25519",
                "anchor": {
                  "status": "pending"
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                "receipt_token": "private-receipt-token",
                "receipt_url": "https://notary.forgemesh.io/api/receipt/att_0123456789abcdef01234567",
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                "signer_pubkey": "base64-ed25519-public-key"
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          "type": "json"
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                          "description": "ISO-8601 time the inference ran (optional; included in the content hash)",
                          "type": "string"
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                        "metadata": {
                          "description": "Optional caller metadata, <= 4 KB — accepted but NOT persisted or hashed (reserved for future opt-in retention)",
                          "type": "object"
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                          "description": "Model identifier, e.g. openai/gpt-5 or claude-fable-5",
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                          "description": "Exact prompt/input sent to the model",
                          "type": "string"
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                          "description": "Exact model output being notarized",
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              "type": {
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              "type",
              "method",
              "bodyType",
              "body"
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                              "type": "string"
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                        },
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                        },
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                          "type": "string"
                        },
                        "receipt_url": {
                          "type": "string"
                        },
                        "signature": {
                          "description": "base64 Ed25519 signature by the notary key",
                          "type": "string"
                        },
                        "signer_pubkey": {
                          "description": "base64 raw Ed25519 public key",
                          "type": "string"
                        }
                      },
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                    "type": "array"
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