{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"1527581", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/1916/launches", "lti_message_hint"=>"36831", "client_id"=>"stem_scale_7984546158", "lti_deployment_id"=>"1"}

response_type: id_token (required, the tool must use a value of id_token)

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/1916/launches (required, This URI must exactly match a value pre-registered with the platform)

response_mode: form_post (required, tools and platforms must support a value of form_post)

client_id: stem_scale_7984546158 (required, client identifier valid at the Platform)

scope: openid (required, must contain the openid scope value)

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjRCeENkRzBMTVRud2QwWGRpSTFQWHdCMnlGZFdRNVJIZGh0SmlkYTMydHMiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoxOTE2LCJzdGF0ZV9ub25jZSI6ImFlZTRkYTk2ZTQ4ODAzZTI0YjgzIiwicGFyYW1zIjp7ImlzcyI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmciLCJsb2dpbl9oaW50IjoiMTUyNzU4MSIsInRhcmdldF9saW5rX3VyaSI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvbHRpL3Rvb2xzLzE5MTYvbGF1bmNoZXMiLCJsdGlfbWVzc2FnZV9oaW50IjoiMzY4MzEiLCJjbGllbnRfaWQiOiJzdGVtX3NjYWxlXzc5ODQ1NDYxNTgiLCJsdGlfZGVwbG95bWVudF9pZCI6IjEiLCJjb250cm9sbGVyIjoibHRpL2xvZ2luX2luaXRpYXRpb25zIiwiYWN0aW9uIjoiaW5kZXgiLCJ0b29sX2lkIjoiMTkxNiJ9LCJpc3MiOiJUZXN0IFNURU0gU2NhbGUiLCJzdWIiOiJzdGVtX3NjYWxlXzc5ODQ1NDYxNTgiLCJhdWQiOiJodHRwczovL2x0aS1yaS5pbXNnbG9iYWwub3JnL3BsYXRmb3Jtcy8yMDk1L2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3NzI5MjY4OTIsImV4cCI6MTc3MjkyNzE5MiwianRpIjoiOGY2ZTk2ZGJiOGI0MjcyMTMwNDEifQ.Yf_XAlOeMqfSYnfP-ufcuOF5uXe2MDuVTjUZeMsdWSNIc-UUDxeQrR4wwoFgLZRYqrdjs87BpU2RyvZzj1WsyR0-r9r8dKf7D92PoObNjSJjFdb-VH60fmlpakUyo6u8XkOb2LG3sAs0sEUjeA1KwRJkoRRq6Opjwt6FIRNqpjwoN7YlqKR9ehfSzU6YNZxUP-0ZFTU5DgQ4Ya6KhJCaLd94lHRzRMi971JHb2EEvecpuV6eaeagi1l2jsAhxix475ct9fFF8ACxlG3ejy_kX5dnkjMGFSW85HELxNtaXjuPf_iMPNwP0w3xfiufINwIeE7qJytMQc4Yo2JMpa0sBg (required, opaque value used to maintain state between the request and the callback)

login_hint: 1527581 (required, tools and platforms must support a value of form_post)

lti_message_hint: 36831 (required, a platform opaque identifier identifying the user to login)

prompt: none (optional, The tool should use a value of none. In the future a re-launch flow may support additional values being used here)

nonce: aee4da96e48803e24b83 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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