Privacy Policy

1. Definition of Personal Information

Blockchain Studio recognizes that personal information is information about a living individual prescribed under the Act on the Protection of Personal Information (information that can identify a specific individual by name, date of birth, or the like); any email address, user ID, password, credit card details, or any other information that is used in connection with a specific individual; or interests, family composition, age, or any other attribute information about an individual that is incorporated in personal information.

2. Cookies, advertising IDs and IP Address Information

Blockchain Studio does not consider cookies, advertising IDs (such as Apple Inc’s IDFA or Google Inc’s Google Advertising ID that are used to distinguish smartphone application users) and IP address information to be personal information because cookies, advertising IDs and IP address information cannot be used independently to identify a specific individual. However, Blockchain Studio will deem cookies, advertising IDs or IP address information to be personal information if any of them are incorporated and used together with personal information.

Blockchain Studio discloses the purpose or method of utilization of any cookies, advertising IDs or IP address information it utilizes within the media or service it operates, even if, for example, those cookies, advertising IDs or that IP address information cannot be used to identify any specific individual. It is possible to set a browser to refuse cookies, and if a service cannot be used when a browser is set to refuse cookies, Blockchain Studio will make a public announcement to that effect. The same applies to advertising IDs, which can be disabled in smartphone settings.

3. Specification of Purpose of Utilization of Personal Information

Blockchain Studio specifies, to the extent possible, the purpose of utilization of personal information it handles.

4. Restrictions on Utilization of Personal Information

Blockchain Studio does not handle your personal information beyond the scope necessary for achieving the purpose of utilization without obtaining your prior consent. Even if Blockchain Studio acquires your personal information as a result of a merger or any other instance of succession of business, Blockchain Studio will not, without obtaining your prior consent, handle your personal information beyond the scope necessary for achieving the purpose of utilization before the succession of business. However, these restrictions do not apply in any of the following cases:

  1. a case in which the handling of personal information is based on any law or ordinance;
  2. a case in which the handling of personal information is necessary for the protection of the life, body, or property of an individual and in which it is difficult to obtain your consent;
  3. a case in which the handling of personal information is especially necessary for improving public health or promoting the sound growth of children and in which it is difficult to obtain your consent; or
  4. a case in which the handling of personal information is necessary for cooperation with a state organ, a local government, or any party delegated by either a state organ or local government to execute affairs prescribed by any law or ordinance and in which obtaining your consent is likely to impede the execution of those affairs.

5. Proper Acquisition of Personal Information

Blockchain Studio acquires personal information in a proper manner and does not acquire personal information through deception or any other wrongful means. In addition, Blockchain Studio is also mindful to avoid collecting information of a personal nature from any child under 15 years old unless Blockchain Studio has good reason to do so and the consent of a person who has parental authority.

6. Notice of Purpose of Utilization at the Time of Acquisition of Personal Information

Blockchain Studio publicly announces in advance the purpose of utilization of any personal information it acquires from you; however, this provision does not apply in any of the following cases:

  1. a case in which notifying you of the purpose of utilization or publicly announcing it is likely to harm your or a third party’s life, body, or property or any other right or interest held by you or a third party;
  2. a case in which notifying you of the purpose of utilization or publicly announcing it is likely to harm any right or legitimate interest of Blockchain Studio;
  3. a case in which it is necessary to cooperate with a state organ or a local government to execute affairs prescribed by any law or ordinance and in which notifying you of the purpose of utilization or publicly announcing it is likely to impede the execution of those affairs; or
  4. a case in which it is deemed that the purpose of utilization is clear in consideration of the circumstances of the acquisition.

7. Changes to Purpose of Utilization of Personal Information

Blockchain Studio will not change the purpose of utilization of your personal information beyond a scope in which it is reasonably considered that the purpose of utilization after the change remains duly relevant to that before the change and will publicly announce any change to the purpose of utilization.

8. Secure Management of Personal Information and Supervision of Employees

Blockchain Studio provides personal information protection regulations to prevent leakage of, loss of, or damage to personal information and to otherwise securely manage personal information and carries out necessary and appropriate supervision of its employees.

9. Supervision of Delegated Parties

If Blockchain Studio completely or partially delegates handling of personal information, then Blockchain Studio will enter into an agreement with the delegated party that includes provisions concerning confidentiality or will request that delegated party’s agreement with stipulations made by Blockchain Studio and will carry out necessary and appropriate supervision to ensure that the delegated party carries out secure management of the personal information.

10. Restrictions on Provision to Third Parties

Blockchain Studio does not provide your personal information to a third party without obtaining your prior consent, except in any of the following cases:

  1. a case in which the provision of personal information is based on law or ordinance;
  2. a case in which the provision of personal information is necessary for the protection of the life, body, or property of an individual and in which it is difficult to obtain your consent;
  3. a case in which the provision of personal information is especially necessary for improving public health or promoting the sound growth of children and in which it is difficult to obtain your consent;
  4. a case in which the handling of personal information is necessary for cooperation with a state organ, a local government, or any party delegated by either a state organ or local government to execute affairs prescribed by any law or ordinance and in which obtaining your consent is likely to impede the execution of those affairs; or
  5. Blockchain Studio provides notice of or publicly announces any of the following items:
    1. the fact that the provision to a third party is included in the purpose of utilization;
    2. the items of your personal information to be provided to a third party;
    3. the means or method of provision to a third party; or
    4. the fact that provision of your personal information to a third party will be discontinued at your request.
  6. However, none of the following cases falls under provision to a third party under this article (“10. Restrictions on Provision to Third Parties”):

    1. a case in which Blockchain Studio completely or partially delegates the handling of your personal information within the scope necessary for the achievement of the purpose of utilization;
    2. a case in which your personal information is provided as a result of the succession of business in a merger or otherwise; or
    3. a case in which your personal information is utilized jointly with a specific party and in which this fact, the items of your personal information jointly utilized, the scope encompassed by the parties jointly utilizing your personal information, the purpose for which your personal information is utilized by those parties, and the name or title of the party responsible for the management of your personal
      information is, in advance, notified to you or made readily accessible to you.

    If Blockchain Studio jointly utilizes your personal information with any specific party, Blockchain Studio will, in advance, notify you or make readily accessible to you details of any change to the purpose of utilization of your personal information or any change to the name or title of any person responsible for managing your personal information.

    11. Public Announcement of Matters Concerning Personal Information

    Blockchain Studio makes information concerning the following matters relating to your personal information readily accessible to you and will respond to any request from you regarding these matters:

    1. the purpose of utilization of your personal information (unless it is prescribed under the Act on the Protection of Personal Information that Blockchain Studio does not bear any obligation to make that information readily accessible; if Blockchain Studio decides not to respond to your request, Blockchain Studio will notify you to that effect); or
    2. contact information for inquiries regarding your personal information.

    12. Personal Information Disclosure

    Blockchain Studio will disclose to you your personal information if you request disclosure. However, Blockchain Studio may decide not to disclose all or part of your personal information in any of the following cases, and in that case Blockchain Studio will notify you to that effect:

    1. a case in which disclosure is likely to harm your or a third party’s life, body, property, or any other right or interest held by you or a third party;
    2. a case in which disclosure is likely to seriously impede the proper execution of Blockchain Studio’s business; or
    3. a case in which disclosure will breach any other law or ordinance.

    In principle, Blockchain Studio does not disclose access logs or information other than personal information.

    13. Correction of Personal Information

    If you request Blockchain Studio to correct, add, or delete any details of your personal information on the grounds that those details of your personal information are false, Blockchain Studio will, except in cases in which any special procedure is prescribed by any other law or ordinance, carry out any necessary investigation within the scope necessary for the achievement of the purpose of utilization and, on the basis of the results, correct, add, or delete those details of your personal information.

    14. Discontinuance of Utilization of Personal Information

    If you request Blockchain Studio to discontinue utilizing or to erase your personal information on the grounds that your personal information is being handled in a manner that exceeds the scope of the purpose of utilization publicly announced in advance, Blockchain Studio will carry out any necessary inspection on your personal information and, on the basis of the results, discontinue utilizing or erase your personal information and notify you to that effect. However, this provision does not apply in any case in which it requires excessively large costs or it is otherwise difficult to discontinue utilizing or to erase your personal information and in which Blockchain Studio takes necessary alternative measures to protect your rights and interests.

    15. Explanation of Reasons

    If Blockchain Studio decides not to do any of the following despite receiving a request from you, Blockchain Studio will endeavor to explain the reason for that decision to you when notifying you of that decision:

    1. notify the purpose of utilization of your personal information;
    2. disclose all or some of your personal information;
    3. discontinue utilizing or erase your personal information; or
    4. discontinue provision of your

    personal information to any third party.

    16. Inquiries

    Please use the following contact details to make any inquiry regarding Blockchain Studio’s Privacy Policy:

    Privacy Policy Manager, Legal Affairs Office
    Blockchain Studio, CyberAgent, Inc.
    17F Shibuya Mark City West, 1-12-1 Dogenzaka, Shibuya-ku, Tokyo 150-0043
    Inquiries regarding Privacy Policy You can reach our team by mail to

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