Send Hash and Get UID

Submit hashed data to receive a UID. This is the second step in the stamping process.

Attribute	Details
Method	`POST`
Description	This endpoint is used to submit hashed data. Send the hash as raw JSON data in the body.
Endpoint	`https://integritas.technology/core/v1/timestamp/post`

Request Headers

Header	Value	Description
Content-Type	`application/json`	Specifies the content type as JSON
x-api-key	`your-api-key`	Add your API-key from your profile at https://integritas.technology/
x-request-id	`your-choice`	Add a request id to trace every step of the process

Request Body

Request Type	Content-Type	Body Type	Keys	Description
Raw data	`application/json`	`JSON`	`hash`	Input hash of data

Example

{
  "hash": "E630FCDE204036E93323AE99843BF0EC6D03CAEB51CBBEA11E03D6739F8E9C3F"
}

Request Examples

curl -X POST https://integritas.technology/core/v1/timestamp/post \
  -H "Content-Type: application/json" \
  -H "x-api-key: your-api-key" \
  -H "x-request-id: your-choice" \
  -d '{"hash":"E630FCDE204036E93323AE99843BF0EC6D03CAEB51CBBEA11E03D6739F8E9C3F"}'

API Demo

Try the endpoint with your own API key and hash. The request is sent directly to the API, and the response is displayed below.

Your API key is only used for this request and is not stored.

API Response

The response from the API contains a UID which you will need to retrieve proof of the blockchain transaction that is being done by the stamp server.

Example Response

{
  "service": "CORE_API",
  "apiVersion": 1,
  "requestId": "send-hash-uid",
  "status": "success",
  "statusCode": 200,
  "message": "Hash forwarded successfully",
  "timestamp": "2026-01-16T14:31:03.573Z",
  "data": {
    "status": true,
    "data": "0xE630FCDE204036E93323AE99843BF0EC6D03CAEB51CBBEA11E03D6739F8E9C3F",
    "uid": "0x3B18508ABF8B0120CFEC"
  }
}

Response Fields

For a complete description of the response envelope and fields used by this endpoint, see API Response Schema — Send Hash and Get UID.

Send Hash and Get UID

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