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Download C2PA Asset

The prerequisite of the API includes acquiring the Capture Token following the instructions and registration of the asset following the initial asset registration instructions​.​
In order to verify the C2PA content, you may visit the official Verify page provided by C2PA. For more details about C2PA, see the C2PA official website.
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API Endpoint: https://api.numbersprotocol.io/api/v3/assets/NID/c2pa/
​
Cost: 0 NUM (free to use)
​
Method: POST
​
Authentication:
This API requires a valid token for Authorization.
The token should be passed in the headers of the 
request using the following format:
"Authorization: token YOUR_CAPTURE_TOKEN"
​
Path parameter (required):
nid (string): Nid of the asset to download
​
Examples:
curl -X POST https://api.numbersprotocol.io/api/v3/assets/NID/c2pa/ \
    -H "Content-Type: application/json" \
    -H "Authorization: token YOUR_CAPTURE_TOKEN"
​
Response:
{
    "url": string, // URL for downloading the C2PA asset.
    "cid": string // cid of the C2PA asset. Note that because of the nature of C2PA injection, the cid will not be the same as the asset nid.
}
​
Python
Javascript
import requests
import json
​
# Define the API endpoint
url = "https://api.numbersprotocol.io/api/v3/assets/{nid}/c2pa/"
​
# Define the headers for the request
headers = {
    "Content-Type": "application/json",
    "Authorization": "token YOUR_CAPTURE_TOKEN" # Replace YOUR_CAPTURE_TOKEN with your own
}
​
# Define the path parameters for the request
url = url.format(nid=NID) # Replace NID with the Nid of the asset you want to create and download C2PA file
​
# Send the POST request to the API endpoint
response = requests.post(url, headers=headers)
​
# Check the response status code
if response.status_code != 200:
    print(f"Error: {response.status_code} - {response.text}")
else:
    # Parse the JSON response
    json_data = response.json()
    download_url = json_data["url"]
    print(download_url)
const request = require("request");
​
const url = "https://api.numbersprotocol.io/api/v3/assets/{nid}/c2pa/"; // Replace the {nid} with the actual nid
const headers = {
  "Content-Type": "application/json",
  "Authorization": "token YOUR_CAPTURE_TOKEN"
};
​
request.post(
  {
    url,
    headers
  },
  function(error, response, body) {
    console.log(body);
  }
);
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Last modified 1mo ago