ARKPIA Terms of Service

Article 1 (Purpose and Scope)

The purpose of these Terms is to set out the conditions for using the website, mobile web, related online services and associated features (the “Service”) provided by J&JOHN Co., Ltd. (the “Company”) under the name ARKPIA, and the rights and obligations of the Company and its members.

The Service is currently a non-transactional platform providing member and artist verification, artwork registration, review and publication, public authentication checks, saved works and artist follows. COA issuance and lookup, and ownership history requests and changes, are provided only to the extent shown as available on the Service. Should the Company provide payment, sales, brokerage or settlement features in future, it will give advance notice of separate terms or policies compliant with applicable law.

Where mandatory consumer protection rules in the member’s country of residence take precedence over these Terms, those rules apply.

Article 2 (Definitions)

1. “Member” means a person who has accepted these Terms and the Privacy Policy and created an account.

2. “Artist Member” means a member who has received artist verification through the procedures set by the Service.

3. “Artwork Information” means the title, artist name, year, medium, dimensions, description and images of a work, together with related materials submitted by a member.

4. “Authentication” means the process by which the Company verifies the relationship between the Artwork Information and the party registering it, based on the materials submitted and its internal criteria, records the authentication status, and — where an issuance feature is provided on the Service — issues a COA.

5. “COA” means a digital certificate in which the Company records Artwork Information and authentication status within the Service, based on the materials submitted and the information verifiable at that time.

6. “Ownership History” means the record of requests, confirmations and changes relating to the ownership or possession of a work.

7. “Public Premiere” means the public operating period during which features and operational standards are tested ahead of the full commercial service.

Article 3 (Company Information and Contact)

1. Company name: J&JOHN Co., Ltd.

2. Representative: Choi Jungwoon

3. Business registration number: 587-86-01271

4. Address: 6F, 818 Seolleung-ro, Gangnam-gu, Seoul, Republic of Korea (Cheongdam-dong)

5. Contact: contact@jnjohn.com

Article 4 (Posting and Amendment of the Terms)

1. The Company posts these Terms on the Service so that members can readily review them.

2. The Company may amend these Terms to the extent that this does not contravene applicable law. Material changes unfavourable to members are announced, together with the effective date and the reason for the change, at least 30 days before they take effect; other changes are announced at least 7 days beforehand, on the Service or by email or another reasonable method. Where advance notice is impracticable — for example an urgent security response or a change in law — notice is given as promptly as is possible.

3. A member who does not accept a change unfavourable to them may terminate their membership before the effective date. The Company does not treat a member’s silence alone as acceptance of an unfavourable change. If a member continues to use the Service after amended Terms take effect, the amended Terms apply; where separate consent is legally required, that consent is obtained again.

4. So that members can compare the position before and after a change, the Company makes the Terms in force, together with the effective dates and principal changes of previous versions, available on the legal notices screen.

Article 5 (Formation of the Service Agreement)

1. The service agreement is formed when an applicant accepts these Terms and the Privacy Policy and the Company approves the application.

2. Members may sign up with an email address and password, or through an external login method supported by the Company, such as Google or Kakao.

3. Items requiring separate consent by law — such as consent to the collection and use of personal information and consent to receive marketing communications — are obtained separately from acceptance of these Terms. Declining optional consent does not affect use of the core Service beyond the optional feature concerned.

Article 6 (Restrictions on Registration and Account Management)

1. Members must provide accurate information and keep it up to date.

2. Persons under the age of 14 may not join the Service. The Company may request age verification where necessary.

3. Where there has been misuse of another person’s information, submission of false information, or a breach of applicable law or these Terms, the Company may refuse registration or subsequently restrict use.

4. Members are responsible for managing their account and authentication credentials. A member who becomes aware of misuse or unauthorized use must notify the Company immediately.

Article 7 (Contents of the Service)

The Company provides all or part of the following features.

1. Member account and profile management

2. Artist verification applications and review

3. Registration, editing, review and publication of Artwork Information, and viewing approved artists and works and published authentication details

4. Saving works and following artists

5. COA issuance, lookup and status management, where shown as available on the Service

6. Ownership History requests, confirmations and changes, where shown as available on the Service

7. Notifications, customer support and security features necessary to operate the Service

Detailed features, their scope and how they are used follow the guidance shown on the Service.

Article 8 (Non-Transactional Service)

1. The Service does not currently conclude artwork sales or act as an intermediary for payment, shipping or settlement.

2. Contact, negotiation or transactions between members outside the Service are conducted at the parties’ own responsibility. The Company is not a party, agent or guarantor of any such transaction.

3. Should the Company introduce transaction features, it will give advance notice of the standards for fees, refunds, the right to withdraw from a purchase, settlement and dispute handling through separate terms or policies.

Article 9 (Artist Member Applications and Review)

1. A member applying to become an Artist Member must accurately submit the materials required for identity and activity verification.

2. The Company may request further materials, or withhold or refuse approval, in order to verify the authenticity and completeness of the materials submitted, the rights involved, or compliance with its internal criteria.

3. The Company’s review is a registration procedure for operating the Service; it does not guarantee an artist’s legal status, the value or marketability of any work, or the rights of third parties.

Article 10 (Artwork Registration and Member Warranties)

1. A member registering Artwork Information warrants that they have the lawful authority to register and publish those materials and to permit the Company to use them in providing the Service.

2. Members must not register false or misleading information, another person’s personal information, materials that infringe rights such as reputation, copyright or trademark, or unlawful materials.

3. Members grant the Company a non-exclusive, royalty-free, worldwide license to store, reproduce, convert the format of, transmit and display Artwork Information and images, and to use them for authentication, Ownership History lookups, dispute handling, service security and backups. This license is limited to what is necessary to provide the Service.

4. Even after a member terminates their membership, the license in paragraph 3 may survive to the minimum extent necessary to maintain the reliability of COAs already issued and of Ownership History, correction records, dispute handling, and the legitimate lookup rights of third parties. The processing and publication of personal information follow the Privacy Policy.

5. Members may edit materials they have registered, or request their deletion, through the methods provided by the Service. However, records connected to a COA already issued or to third-party rights may be handled by correction, unpublication or a status change rather than outright deletion.

Article 11 (Review, Supplementation and Correction)

1. The Company may request additional materials, inspection of originals, or explanations for the purposes of authentication and Ownership History verification.

2. Where there are reasonable grounds, the Company may reject an application before issuance, or suspend, correct or cancel the status of a COA after issuance, and will inform the member of the reasons.

3. Within 30 days of receiving notice of the decision, a member may contact contact@jnjohn.comto appeal and submit additional materials. The Company communicates the review result within a reasonable period.

4. A member who becomes aware of an error in Artwork Information or of a possible dispute over rights must notify the Company without delay.

Article 12 (Nature and Limits of the COA)

1. A COA is the result of the Company recording and verifying Artwork Information within the Service, based on the materials submitted and the information verifiable at that time.

2. A COA is not a certificate issued by a public authority or a statutory appraisal body, and it is not an absolute guarantee of a work’s authenticity, copyright ownership, title, freedom from defects, value, price, marketability or investment return.

3. Before any significant transaction or legal determination, members and third parties should obtain separate expert appraisal, rights investigation and legal advice as necessary.

4. A member who submits false materials intentionally or through gross negligence is liable for any resulting loss to the Company or to third parties.

Article 13 (Ownership History Verification)

1. Ownership History is recorded on the basis of the materials submitted by the applicant and the verification procedure. It is not in itself a public register that determines the creation or transfer of title under civil law, or its enforceability against third parties.

2. As a rule the Company does not publish owners’ personal information; the Service may display only the minimum necessary details, such as verification status, sequence and timing.

3. In the event of a dispute over rights, a lawful request from an investigative authority, or a statutory obligation, access to the relevant records may be restricted or the records may be provided to the extent permitted by law.

Article 14 (Prohibited Conduct)

Members must not engage in the following conduct.

1. Submitting false, forged or altered materials

2. Misappropriating another person’s account, works or rights information

3. Compromising the security or proper operation of the Service, or accessing it excessively by automated means

4. Infringing the personal information, reputation, copyright, trademark or other rights of the Company or third parties

5. Altering a COA, a verification status or a screen, or presenting matters as though the Company had guaranteed a work’s value or investment merit

6. Using the Service for unlawful purposes such as fraud, money laundering, price manipulation or illegal advertising

7. Any other conduct in breach of applicable law, public order or these Terms

Article 15 (Restrictions on Use and Objections)

1. Depending on the nature and seriousness of a breach, the Company may issue a warning, unpublish materials, restrict features, change a COA’s status, suspend an account or terminate the service agreement.

2. Unless there is an urgent security risk, suspected crime, infringement of rights or risk of evidence being destroyed, the Company gives advance notice of the reasons for and scope of any measure and of how to object. Where a measure is urgent, notice is given without delay afterwards.

3. Within 30 days of receiving the notice, a member may contact contact@jnjohn.comto appeal. The Company reviews the submitted materials and communicates the result within a reasonable period.

4. The Company takes measures proportionate to the breach and limited to what is necessary.

Article 16 (Termination of Membership and Handling of Records)

1. Members may use the method provided in the service or contact contact@jnjohn.comto request account deletion at any time.

2. On termination, the Company destroys or separately stores personal information that is no longer needed — such as account details, contact details and login identifiers — in accordance with the Privacy Policy.

3. Artwork identification details, artist attribution details, images, serial numbers and status records that are necessary to verify the authenticity of COAs already issued, to maintain correction records and the continuity of Ownership History, to protect third-party rights and to handle disputes may be retained for the necessary period, after account links have been removed and publication has been minimized.

4. Members may request the correction, unpublication or restricted processing of retained records. The Company will inform the member of the outcome and the reasons, weighing the member’s rights against the rights of third parties who have relied on the records, the reliability of the Service and its legal obligations.

Article 17 (Changes, Suspension and Discontinuation of the Service)

1. The Company may change or temporarily suspend all or part of the Service for operational, technical, security or legal reasons.

2. Planned suspensions and changes material to members are announced in advance wherever possible. Urgent faults, security incidents, force majeure events or third-party infrastructure failures may be announced afterwards.

3. Where the Company discontinues the Service entirely, it will, absent exceptional circumstances, give notice of that fact and of how to download materials at least 90 days before the closing date.

4. On discontinuation, where the relevant feature was in fact provided, the Company will offer a reasonable means for members to download COAs issued to them and the principal records they registered in a commonly usable format. Information subject to security, third-party rights or statutory restrictions may be excluded.

Article 18 (Scope of Liability)

1. Where the Company causes loss to a member by breaching these Terms or applicable law intentionally or negligently, it is liable in accordance with applicable law.

2. The Company is not liable for loss arising from force majeure, war, network failure, causes attributable to the member, or other causes beyond its reasonable control — except to the extent that the Company failed to meet its duties of prevention and response.

3. The Company is not liable for the authenticity or completeness of materials submitted by members, for transactions between parties conducted outside the Service, or for the acts of third-party services — except where the Company has acted intentionally or negligently.

4. Nothing in these Terms limits liability arising from the Company’s intentional misconduct or gross negligence, loss of life or personal injury, breach of personal information protection obligations, or any liability that cannot be excluded by law.

Article 19 (Notices, Governing Law and Dispute Resolution)

1. The Company may give notice through the Service, to the email address registered by the member, or by other reasonable means. Matters common to an unspecified number of members may be notified by posting on the Service for at least 7 days; however, matters that materially affect members’ rights or obligations are notified individually.

2. These Terms are governed by the laws of the Republic of Korea.

3. The Company and its members will consult in good faith if a dispute arises; where it is not resolved, either party may bring proceedings before the court having jurisdiction under the Civil Procedure Act and other applicable law.

4. This Article does not limit mandatory consumer protection rules or statutory jurisdiction applicable to members resident outside Korea.

Article 20 (Intellectual Property)

1. Rights in the Service’s software, design, trademarks, database structure, compilations and Company-authored content belong to the Company or the rightful owner.

2. Rights in works and submitted materials lawfully held by a member remain with that member or the relevant rights holder. The license granted to the Company is governed by Article 10.

3. Members must not reproduce, modify, reverse-engineer, resell or use all or part of the Service in a manner likely to cause confusion, without the Company’s prior written consent — except where permitted by law.

Supplementary Provisions

1. These Terms take effect on September 3, 2026.

2. v1.4 is the first version of the Terms in force for the ARKPIA Public Premiere.