1. Agreement and contracting entity
These Terms of Service ("Terms") are a binding agreement between you ("you," "your," or "User") and Mutagenic Labs, LLC ("Mutagenic Labs," "we," "us," or "our"), the operator of LeoLog ("LeoLog" or the "Service"). By creating an account, checking the box to accept these Terms, or using the Service, you agree to these Terms. If you do not agree, do not use the Service.
If you use the Service on behalf of an organization, you represent that you are authorized to bind that organization, and "you" includes that organization.
2. The Service
LeoLog is an early-stage, encrypted inventor's notebook and proof-of-existence service. You create entries (notes, sketches, files, and related data); LeoLog encrypts that content in your browser, stores only encrypted material, computes a cryptographic hash of your content, and anchors that hash — not your content — to public blockchains (Base, an Ethereum layer-2 network) and, through OpenTimestamps, to the Bitcoin blockchain. The result is a cryptographic record that a specific hash existed at a point in time, which you or any third party can verify independently.
The Service is provided during a beta period and is under active development. Features, limits, and availability may change.
3. Eligibility
You must be at least 18 years old and capable of forming a binding contract to use the Service. The Service is not directed to children.
4. Accounts, encryption keys, and security
4.1 Client-side encryption. Your entry and attachment content is encrypted on your device before it reaches our servers. We store encrypted envelopes and wrapped keys. We do not receive, hold, or have the ability to read your plaintext content.
4.2 Your recovery phrase is unrecoverable by us. Access to your encrypted content depends on your password and recovery phrase (or equivalent key material). We cannot reset, recover, or reconstruct your recovery phrase, and we cannot decrypt your content for you. If you lose your recovery phrase and password, your encrypted content will be permanently inaccessible. You are solely responsible for securely retaining your credentials and recovery phrase.
4.3 Account security. You are responsible for activity under your account and for maintaining the confidentiality of your credentials. Notify us promptly of any unauthorized use.
5. Evidentiary expectations — important
5.1 What a LeoLog proof is. A LeoLog proof is an independently verifiable cryptographic demonstration that a particular content hash was committed to public blockchains at or before a particular time. It is designed for admissibility and is intended to be consistent with authentication and self-authentication concepts under Federal Rules of Evidence 902(13)–(14), electronic-records frameworks including eIDAS 2.0, and blockchain-evidence statutes.
5.2 What a LeoLog proof is not. LeoLog does not guarantee that any court, tribunal, patent office, agency, arbitrator, or other decision-maker will admit a LeoLog proof, assign it any particular evidentiary weight, or reach any particular outcome. No particular court, agency, or other decision-maker is required to admit or assign weight to a LeoLog proof. Admissibility, authentication, weight, and legal effect are determined by the applicable decision-maker under applicable law and the facts of each matter. We make no representation or warranty that a LeoLog proof is or will be "court-admissible" in any jurisdiction.
5.3 A hash anchor establishes existence-at-a-time, and nothing more. Anchoring a hash does not establish, and is not evidence of, inventorship, authorship, ownership, novelty, patentability, priority over any third party, trade-secret status, freedom to operate, or any other substantive legal right. It demonstrates only that specific data existed in a specific form at or before the anchored time.
5.4 No legal advice. Mutagenic Labs is not your attorney, and the Service does not provide legal advice. Nothing in the Service or these Terms is a substitute for advice from your own qualified intellectual-property and evidence counsel, whom you should consult regarding your specific needs.
6. Your content and ownership
6.1 You retain your rights. You retain all rights you hold in the content you submit. These Terms do not transfer ownership of your content to us.
6.2 Limited license to operate the Service. You grant Mutagenic Labs a limited, non-exclusive, worldwide license to host, store, transmit, hash, encrypt/decrypt in transit as technically necessary, and anchor the cryptographic hash of your content solely to provide and maintain the Service. Because your content is client-side encrypted, this license operates on encrypted material and hashes; it does not grant us the ability to read your plaintext.
6.3 Feedback. If you send us feedback or suggestions, you grant us a perpetual, royalty-free license to use it without obligation to you.
7. Free beta plan and limits
During the beta, the free plan permits 10 newly created entries per UTC calendar month and attachments of up to 25 MB per file. These limits are separate: the 10-entry allowance is a monthly count of new entries; the 25 MB cap applies to the size of each individual attachment. Deleted entries still count toward the monthly allowance because the cost of anchoring them has already been incurred. These limits and any future paid plans may change with notice where required. The beta Service is provided on an "as-is" basis (see Section 12).
8. Acceptable use
You agree not to use the Service to: (a) violate any law or regulation, or infringe or misappropriate any third party's rights; (b) upload content you lack the right to submit; (c) attempt to gain unauthorized access to the Service, other accounts, or our systems; (d) interfere with or disrupt the integrity or performance of the Service; (e) circumvent usage limits, metering, or access controls; or (f) use the Service in violation of applicable export-control or sanctions laws.
9. Fees
The free beta plan is offered at no charge. If we introduce paid plans, the applicable fees, billing terms, and any changes will be disclosed and agreed before you are charged.
10. Blockchain anchoring and immutability
You understand and agree that: (a) blockchain networks and the OpenTimestamps infrastructure are public, decentralized, and operated by third parties outside our control; (b) once a hash is anchored, the resulting on-chain record and any timestamp attestations are public and cannot be altered, recalled, or deleted by us or by you; (c) a LeoLog proof discloses a hash and timing metadata, not your content; and (d) network conditions, fees, forks, or third-party outages may delay or affect anchoring. Deleting an entry (Section 15) destroys the encrypted content and linkage we hold, but a previously anchored hash may remain publicly observable indefinitely without any recoverable LeoLog content behind it.
11. Third-party services
The Service relies on third-party infrastructure, including public blockchain networks (Base and Bitcoin), the OpenTimestamps calendar network, transactional email delivery, and cloud hosting. We are not responsible for the acts, omissions, availability, or policies of these third parties. Your use of components that are separately licensed (for example, the open-source LeoLog verifier) is governed by their respective licenses.
12. Disclaimers
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR SECURE, THAT ANCHORING WILL OCCUR WITHIN ANY PARTICULAR TIME, OR THAT ANY PROOF WILL BE ACCEPTED OR GIVEN WEIGHT BY ANY DECISION-MAKER. WE HAVE NOT REPRESENTED THAT THE SERVICE HAS UNDERGONE ANY FORMAL SECURITY AUDIT. YOU USE THE BETA SERVICE AT YOUR OWN RISK.
13. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, MUTAGENIC LABS AND ITS MEMBERS, OFFICERS, AND AGENTS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, DATA, GOODWILL, OR THE LOSS OR INACCESSIBILITY OF ENCRYPTED CONTENT OR RECOVERY PHRASES, ARISING OUT OF OR RELATING TO THE SERVICE, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER THEORY, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. OUR TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THE SERVICE WILL NOT EXCEED THE GREATER OF (A) THE AMOUNTS YOU PAID US FOR THE SERVICE IN THE TWELVE MONTHS BEFORE THE CLAIM, OR (B) ONE HUNDRED U.S. DOLLARS (US$100). Some jurisdictions do not allow certain limitations, so some of the above may not apply to you.
14. Indemnification
You will indemnify and hold harmless Mutagenic Labs from any claims, damages, liabilities, and expenses (including reasonable attorneys' fees) arising out of your content, your use of the Service, or your violation of these Terms or applicable law.
15. Termination and deletion
You may stop using the Service and delete your entries or account at any time. Deleting an entry destroys the encrypted content and linkage LeoLog holds according to our deletion process; public blockchain and OpenTimestamps anchors cannot be erased (Section 10). We may suspend or terminate access for violation of these Terms, to comply with law, or to protect the Service. Provisions that by their nature should survive termination (including Sections 5, 6.1, 10, 12, 13, 14, and 17) survive.
16. Changes to these Terms
We may update these Terms. When we do, we will revise the version identifier and effective date. For material changes, we will require you to review and accept the updated Terms before you continue to create new entries. Your continued use after an update, or your acceptance at the re-consent prompt, constitutes acceptance of the updated Terms.
17. Governing law and disputes
These Terms are governed by the laws of the State of Delaware, without regard to conflict-of-laws rules. Subject to the arbitration agreement below, the exclusive venue for any dispute not subject to arbitration — including any action to compel or enforce arbitration or to seek injunctive or equitable relief — will be the state and federal courts located in Los Angeles County, California, and the parties consent to personal jurisdiction there.
17.1 Binding individual arbitration. Except for (a) claims for injunctive or other equitable relief, (b) claims to compel, enforce, or vacate an arbitration award, and (c) claims that may be brought in small-claims court, any dispute, claim, or controversy arising out of or relating to these Terms or the Service that is not resolved informally within thirty (30) days of written notice will be resolved by final and binding arbitration administered by JAMS under its Comprehensive Arbitration Rules and Procedures then in effect (the JAMS rules applicable to commercial disputes). The arbitration will be conducted before one arbitrator, seated in Los Angeles County, California, and the arbitrator's award may be entered in any court of competent jurisdiction. The arbitrator has exclusive authority to resolve threshold disputes over arbitrability, except that a court decides whether the class-action waiver in Section 17.2 is enforceable.
17.2 Class-action waiver. You and Mutagenic Labs agree that each may bring claims against the other only in an individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated, or representative proceeding. The arbitrator may not consolidate more than one person's claims or preside over any form of representative or class proceeding.
17.3 30-day opt-out. You may opt out of this arbitration agreement (Sections 17.1–17.2) by sending written notice of your decision to opt out to Mutagenic Labs at the address or contact email in Section 20 within thirty (30) days after you first accept these Terms. Your notice must include your name and the email associated with your account. If you opt out, the governing-law and venue provisions above continue to apply, and opting out does not affect any other part of these Terms.
18. Force majeure
Neither party will be liable for any delay or failure to perform resulting from causes beyond its reasonable control, including acts of God, natural disasters, epidemics, war, terrorism, civil unrest, labor disputes, governmental action, and failures of the internet, utilities, or third-party hosting. Without limiting the foregoing, you specifically acknowledge that anchoring, timestamping, confirmation, and verification depend on public, decentralized third-party systems, and that the unavailability, congestion, failure, fork, reorganization, delayed or absent confirmation, or discontinuation of any blockchain network (including Base and Bitcoin) or of the OpenTimestamps calendar, aggregation, or attestation infrastructure is a force-majeure event. Any resulting delay or failure to anchor, confirm, verify, or otherwise perform is excused for so long as the event continues, and Mutagenic Labs will have no liability for it. This Section does not excuse any payment obligation otherwise due.
19. Miscellaneous
These Terms, together with any policies referenced here (including the Privacy Notice), are the entire agreement between you and Mutagenic Labs regarding the Service. We may assign these Terms in connection with a merger, acquisition, or sale of assets; you may not assign them without our consent. If any provision is held unenforceable, the remaining provisions remain in effect. Our failure to enforce a provision is not a waiver. Notices to you may be provided through the Service or the email associated with your account.
20. Contact
Mutagenic Labs, LLC
5318 2nd St #333, Long Beach, CA 90803
hello@leolog.io