Troubleshooting

cURL

I am not receiving a response from cURL:

  • Add the -v flag to receive verbose output: curl -v ...
  • Ensure to provide the Content-Type header: -H "Content-Type: application/json"
  • Check the verbose output for the HTTP response code, e.g. HTTP/1.1 415 and research the response code to get further information.

I am trying to download a proof with cURL, but the file is empty:

  • Make sure to specify application/octet-stream in the Accept header:
curl -v -o proof.pdf -H "Accept: application/octet-stream" YOUR_DOWNLOAD_URL

Cloudflare errors

We use Cloudflare to protect the service from DDoS attacks, i.e., unwanted traffic is automatically filtered.

Cloudflare analyzes User-Agents. If you don't set a User-Agent in your cURL request, you likely get a Cloudflare error. To resolve this issue, please set the User-Agent in your request header, e.g.

curl -X GET https://api.originstamp.com/v4/timestamp/05c2422f44ddd24ba3f25848773a8fcb48435f8f966381da4732c40a7255780c\
     -H "Content-Type: application/json"\
     -H "User-Agent: Robins OriginStamp Test"\
     -H "Authorization: XXXX-XXXX-XXXX-XXXX"

HTTP 4xx error

An HTTP 4xx error specifies issues at the client's end. E.g., a malformed request. Please refer to this page (opens new window) for more information.