curl --request POST \
  --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/history/bulk/checksums' \
  --header 'Content-Type: application/json' \
  --data '{"object_keys":["string"]}'

{
  "checksums": [
    {
      "value": "string"
    }
  ]
}