DeepShield
API Reference.

Checks the edge Redis cache for previous forensic analyses matching the video's 64-character hex SHA-256 fingerprint.

curl -X GET "https://deepshield.video/api/lookup?hash=e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" \
  -H "Accept: application/json"

{
  "cached": true,
  "hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
  "result": {
    "jobId": "job_01h7x9k2m",
    "verdict": "authentic",
    "fakeProbability": 0.08,
    "confidenceScore": 0.94,
    "methodAttribution": {
      "faceSwap": 0.02,
      "lipSync": 0.04,
      "diffusion": 0.01,
      "audioClone": 0.01
    },
    "analyzedAt": "2026-10-10T02:15:30.000Z"
  }
}

Zero-Compute Instant Lookups

Integrate the pre-upload client hash query to avoid transferring media that has already been verified.

import { sha256 } from "hash-wasm";

async function verifyVideoBeforeUpload(videoBlob: Blob) {
  // 1. Compute client-side SHA-256 hash in browser memory
  const buffer = await videoBlob.arrayBuffer();
  const hash = await sha256(new Uint8Array(buffer));

  // 2. Query DeepShield instant edge cache
  const res = await fetch(`https://deepshield.video/api/lookup?hash=${hash}`);
  const data = await res.json();

  if (data.cached) {
    console.log(`Instant verdict: ${data.result.verdict} (${data.result.fakeProbability * 100}% synthetic)`);
    return data.result;
  }

  console.log("Cache miss. Video must be uploaded via /api/upload-url flow.");
}