Terms of Service

Article 1 (Scope)

These Terms apply to every aspect of the relationship between us and you concerning use of the Service. Individual rules and notices we publish within the Service form part of these Terms.

Article 2 (Accounts)

• You create an account by registering an email address. You must keep your registered information accurate and current.
• You are responsible for managing your account, password and API keys. You may not let a third party use them, nor lend or transfer them.
• Any operation carried out through an account is treated as an operation by the user of that account.

Article 3 (Plans and pricing)

The Service provides paid quotas according to the plan. The price and quota of each plan are shown on the sign-up screen.

The Service is currently being prepared for launch. Pricing and the launch date will be published on this page and on the product pages once they are fixed.

Article 4 (Changing plans)

• Upgrades take effect immediately. The quota is increased once payment of the difference succeeds.
• Downgrades take effect on the next renewal date. The difference is not refunded.

Article 5 (Cancellation)

• If you cancel, the contract ends at the end of the period already paid for. No refund is given.
• You may withdraw a cancellation at any time up to the end of the period already paid for.
• After the contract ends, certificates and timestamps already issued remain verifiable.

Article 6 (Payment and failed charges)

• Payment is by credit card only.
• If a renewal charge fails, you may continue to use the Service until the end of the period already paid for (paid_until).
• If that date passes without the next payment being confirmed, we stop new issuance. Certificates and timestamps already issued remain verifiable after issuance stops.

Article 7 (What proofs, certificates and timestamps establish)

What the Service provides is the fixing of facts in a form that can be verified afterwards. The following are outside what the Service warrants, and you use the Service on that understanding.

• The existence of a proof does not mean the decision was correct. Whether the source material was factual, whether the rules were appropriate, and whether the decision or approval was sound all require separate assessment.
• An NCC pass or fail is a deterministic evaluation under version-pinned rules. It does not warrant the soundness of the network change itself, future availability, or conformity with audit or certification standards. INCONCLUSIVE is never treated as PASS.
• What PP-TSA establishes is that the data existed at that point in time and that what is presented now is the same data. It does not establish who created it, whether its content is correct, or who holds rights in it. Ledger inclusion may be pending at the moment of issue; pending, overdue and unknown are never reported as complete.
• AI is used to help explain results and takes no part in determining pass or fail.

Article 8 (Prohibited conduct)

You must not do any of the following when using the Service.

• Anything that violates law or public order and morals.
• Attempting, through the Service, to observe, probe or otherwise access targets you are not authorised to access.
• Altering a proof, certificate or timestamp issued by the Service, or using it to convey a meaning contrary to fact.
• Interfering with the operation of the Service or with other users’ use of it.
• Reverse engineering or otherwise analysing the structure of the Service, except where permitted by law.
• Reselling or re-providing the Service without our prior written consent.

Article 9 (Suspension and changes)

• We may temporarily suspend all or part of the Service for maintenance, fault response or other unavoidable reasons, giving notice in advance. Where the matter is urgent, notice may be given afterwards.
• We may change the content of the Service or discontinue it. If we discontinue it, we will give reasonable advance notice.

Article 10 (Limitation of liability)

• We give no warranty, express or implied, that the Service is free from defects in fact or in law.
• Except where we act with intent or gross negligence, our liability to you in damages is capped at the fees you paid us for the month in which the loss arose.
• We are not liable for lost profits, lost business opportunities or other indirect loss.

Article 11 (Confidentiality)

Neither we nor you may disclose to a third party confidential information received from the other in connection with the Service without the other’s prior written consent, nor use it for any purpose other than using or providing the Service.

Article 12 (Changes to these Terms)

We may amend these Terms. Amended Terms take effect when published on this page. For changes with a material effect on you, we will give reasonable advance notice.

Article 13 (Governing law and jurisdiction)

These Terms are governed by the laws of Japan. The Tokyo District Court has exclusive jurisdiction at first instance over any dispute arising between us and you in connection with the Service.