Safe Stamper Web API callbacks

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When starting a certification job with stamp you can provide a callback URL.

Once the certification job is finished, the callback URL will receive a POST call with the same JSON object as returned in the status operation.

To authenticate the callback, the JSON object HMAC-SHA1 will be calculated using the API client private key and will be provided as a query string signature parameter.


Line breaks have been included in this example content for legibility, but actual callbacks include the whole JSON in a single line.

POST /stamper-callback?signature=743ae4504eb41cbfe2d2e72dac76a27613333a53 HTTP/1.1
Content-Type: application/json
Content-Length: 377