BitcoinProof End User Licence Agreement

Version 1.0 — Last updated 2026-07-29

This Agreement is between you ("You" or "Licensee") and Wenze van Klink, trading as BitcoinProof, a Dutch sole proprietorship (eenmanszaak) registered with the Dutch Chamber of Commerce (KVK) under number 91404983, with business address Snijbiet 11, 2371DR Roelofarendsveen, NL VAT (BTW) number NL004888591B14 ("Licensor", "we", "us").

Please read this Agreement carefully. By running the BitcoinProof software, You accept this Agreement. A notice of these terms is displayed on first launch. If You do not accept this Agreement, do not run the software.

Note: v1.0 uses by-use acceptance with a notice displayed on first launch (Screen 1). A click-through acceptance step at install is planned for a subsequent release.

1. Definitions

1.1 "Software" means the BitcoinProof desktop application for Microsoft Windows, including any updates, in object-code form, distributed by us as a PyInstaller-packaged binary downloaded from bitcoinproof.io.

1.2 "Licence Key" means a credential issued by us in the form BP-{year}-XXXX-XXXX-XXXX-XXXX that enables the Paid Features of the Software for one Entity, for the year(s) specified in the key.

1.3 "Entity" means a natural person, legal person, trust, fund, or estate whose Bitcoin holdings are reconstructed by the Software.

1.4 "Free Features" means: unlimited Entity creation; current chain-tip values; historical-snapshot non-monetary metadata; masked PDF exports; masked UTXO CSV exports.

1.5 "Paid Features" means: historical monetary values; clean (unmasked) PDF and CSV exports.

1.6 "Report" means a PDF or CSV file generated by the Software.

1.7 "PDF Disclaimer" means the disclaimer text reproduced in every Report generated by the Software, the canonical text of which is published at bitcoinproof.io/disclaimer.

1.8 "Terms of Service" or "ToS" means the document published at bitcoinproof.io/terms.

1.9 "Consumer" means a natural person acting outside their trade, business, craft, or profession, within the meaning of Directive 2011/83/EU (and national implementations), the Australian Consumer Law, and equivalent law of Switzerland and Norway.

2. Licence grant

2.1 Grant. Subject to Your compliance with this Agreement, we grant You a non-exclusive, non-transferable, non-sublicensable, worldwide, perpetual licence to install and run the Software on computers under Your control, for Your internal use (including, in the case of professional users, internal use on behalf of Your clients).

2.2 Free use. You may use the Free Features without a Licence Key, indefinitely.

2.3 Paid features. Use of Paid Features for an Entity for a given historical snapshot date requires a valid Licence Key whose year field is greater than or equal to the calendar year of the snapshot's target_date. The Licence Key is bound to the Entity at the moment of activation inside the Software and is not thereafter transferable to a different Entity.

2.4 Multi-year keys. A multi-year Licence Key is a single key whose year field is the ceiling year of the prepaid term. It enables Paid Features for snapshot target_date years up to and including the ceiling year. The price is locked at purchase and is not adjusted for any subsequent change to our list price.

2.5 Permanent scope. A Licence Key, once activated, authorises Paid Features for all snapshot target_date years up to and including its year field, indefinitely. This applies even after we cease to sell Licence Keys generally and even if You no longer receive updates.

3. Restrictions

3.1 You shall not, and shall not permit any third party to:

(a) reverse-engineer, decompile, or disassemble the Software, except to the extent expressly permitted by mandatory law (including Article 6 of Directive 2009/24/EC on the legal protection of computer programs, and equivalent Dutch BW 7A:5j);

(b) redistribute, sublicense, rent, lease, lend, or sell the Software or any Licence Key;

(d) circumvent, bypass, or attempt to defeat the licence-key validation, the historical-value masking applied to Free Features, or any technical protection measure;

(e) use the Software to misrepresent the holdings of any Entity or to generate a Report that is materially altered after generation while continuing to bear BitcoinProof attribution.

3.2 Nothing in clause 3 limits Your right to inspect, study, or test the functioning of the Software where mandatory law so permits.

4. Free vs paid feature scope

4.1 The matrix below is binding for the avoidance of doubt:

Capability	Free	Paid licence
Entity creation (unlimited)	✓	✓
Chain-tip values	✓	✓
Historical snapshot metadata (UTXO count, txids, block heights, addresses, scan parameters, confirmation depth, backend, block hash)	✓	✓
Historical monetary values	masked `[LOCKED]`	✓
Masked PDF exports (all three levels)	✓	✓
Clean (unmasked) PDF exports	✗	✓
Masked UTXO CSV	✓	✓
Clean UTXO CSV	✗	✓

5. Network communications

5.1 The Software makes only the following outbound network calls:

(a) HTTPS GET requests to a public Bitcoin block explorer to retrieve script-hash transaction data needed for blockchain reconstruction; the Software discloses the IP address and User-Agent of Your computer to that explorer. The default explorer is identified in the application before any scan and named in Annex A to our privacy policy, and You may change it in Settings;

(b) HTTPS GET requests to bitcoinproof.io/licenses.json for Licence Key validation;

5.2 The Software does not perform telemetry, analytics, or crash reporting. The Software does not transmit wallet descriptors, xpubs, addresses, balances, or any user-input data to us. Wallet descriptors and xpubs remain on Your computer.

5.3 In the event of network unavailability, the Software grants a 30-day offline grace period during which previously activated Licence Keys remain valid.

6. Updates

6.1 We may, at our discretion, make updates to the Software available. We are not obliged to do so. We may discontinue updates, the validation endpoint, or the Software itself at any time, on reasonable notice published at bitcoinproof.io.

6.2 An activated Licence Key authorises continued use of the Software in the version installed at that time. Discontinuation of updates does not invalidate Your Licence Key.

6.3 Where the Software is supplied to a Consumer in the European Union (or in Norway under the Digitalytelsesloven, or in jurisdictions implementing Directive (EU) 2019/770), We will provide updates necessary to keep the Software in conformity for the period the Consumer can reasonably expect, and in any event for the minimum period required by mandatory law.

7. Warranty and disclaimers

7.1 Affirmative claim. We warrant, and only warrant, that the blockchain reconstruction performed by the Software is deterministic and independently verifiable against the public Bitcoin blockchain: given identical inputs (descriptor / xpub, target date, network parameters), the Software will produce the same UTXO set and transaction history, and that result is verifiable by an independent observer using public block-chain data.

7.2 No advice. The Software is a software application that produces evidence reports. The Software does not constitute, and a Report does not constitute:

(a) financial advice, investment advice, or financial-product advice (including, in Australia, "financial product advice" within the meaning of section 766B of the Corporations Act 2001 (Cth));
(b) tax advice, accounting advice, or legal advice in any jurisdiction;
(c) a custodial service or wallet service;
(d) a service of a Crypto-Asset Service Provider under Regulation (EU) 2023/1114 (MiCAR);
(e) advice within the regulatory perimeter of the AFM (Netherlands), FINMA (Switzerland), Finanstilsynet (Norway), CNMV (Spain), or ASIC (Australia).

7.3 User inputs. The descriptors, xpubs, valuation parameters, and identity information You provide are Your inputs. We do not verify their accuracy, ownership, or provenance.

7.4 PDF Disclaimer incorporated. The PDF Disclaimer reproduced in every Report is the canonical statement of what a Report is and is not, and is incorporated by reference into this Agreement as factual product characterisation.

7.5 Disclaimer to the extent permitted. Subject to clauses 7.6, 7.7, 7.8 and 8, and subject always to mandatory consumer protections that cannot be excluded under applicable law, the Software is provided "as is" and "as available". To the maximum extent permitted by applicable law, we disclaim all implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

7.6 EU / EEA Consumers — mandatory law. Nothing in this Agreement excludes, limits, or modifies:

(a) Your rights under Directive (EU) 2019/770 on contracts for the supply of digital content and digital services, as transposed in the Member State of Your habitual residence (in Norway: lov om levering av digitale ytelser til forbrukere ("Digitalytelsesloven"), in force 1 January 2023; in Spain: Articles 114 ff. TRLGDCU; in the Netherlands: Title 7.1AA BW);
(b) Your rights under Directive 93/13/EEC on unfair terms in consumer contracts;
(c) Your rights under Council Directive 85/374/EEC and, with effect from 9 December 2026, under Directive (EU) 2024/2853 on liability for defective products, including strict liability for personal injury, damage to property, and destruction or corruption of data not used for professional purposes — which liability cannot be excluded;
(d) Your rights under the Algemene Voorwaarden regime in BW 6:231–6:247 (Netherlands), and in particular the black list of BW 6:236 and the grey list of BW 6:237.

7.7 Switzerland. Nothing in this Agreement excludes or limits liability for unlawful intent or gross negligence, contrary to Article 100(1) of the Swiss Code of Obligations (OR), or applies a clause that would create a significant and unjustified imbalance between the parties' rights and obligations to Your detriment, contrary to Article 8 of the Swiss Federal Act against Unfair Competition (UWG/UCA).

7.8 Norway. Nothing in this Agreement disapplies the protection of Section 36 of the Norwegian Contracts Act (Lov om avtaleslutning ("Avtaleloven") § 36) against unreasonable terms, or the mandatory rights conferred by the Forbrukerkjøpsloven and the Digitalytelsesloven.

8. Australian Consumer Law — Mandatory Notice

8.1 The following statement is provided in compliance with the Australian Competition and Consumer Act 2010 (Cth) and applies to Licensees who acquire the Software in Australia or to whom the Australian Consumer Law (ACL) otherwise applies:

Our services come with guarantees that cannot be excluded under the Australian Consumer Law. For major failures with the service, you are entitled:

to cancel your service contract with us; and

to a refund for the unused portion, or to compensation for its reduced value.

You are also entitled to be compensated for any other reasonably foreseeable loss or damage. If the failure does not amount to a major failure you are entitled to have problems with the service rectified in a reasonable time and, if this is not done, to cancel your contract and obtain a refund for the unused portion of the contract.

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

8.2 Section 64A limitation (Business tier only). Where the Software is supplied under the Business tier and the Software is not of a kind ordinarily acquired for personal, domestic or household use or consumption, our liability for failure to comply with a consumer guarantee in respect of services is limited, to the extent permitted by section 64A of the ACL and where it is fair and reasonable for us to so limit, to the supplying of the services again or the payment of the cost of having the services supplied again. No such limitation is sought in respect of the Individual tier, and nothing in this clause attempts to exclude, restrict or modify the consumer guarantees themselves.

9. Limitation of liability

9.1 Subject always to clauses 7.6, 7.7, 7.8 and 8 and to any liability that cannot, under mandatory applicable law, be excluded or limited (including under EU Directive (EU) 2024/2853 from 9 December 2026), our aggregate liability under or in connection with this Agreement, whether arising in contract, tort (including negligence), under statute, or otherwise, is limited to the total fees actually paid by You to us under or in connection with the Software during the lifetime of Your relationship with us.

9.2 For Licensees on the Free tier who have paid us nothing, the cap in clause 9.1 is, to the extent permitted by applicable law, EUR 0, save that this floor of zero does not apply where it would be contrary to mandatory law (including under EU PLD 2024/2853 from 9 December 2026, OR Art. 100(1), or the ACL where applicable).

9.3 We are not liable for: (a) loss of profits, loss of revenue, loss of business, loss of opportunity, or loss of goodwill; (b) any consequential, indirect, or special loss; (c) any loss caused by inputs You provided being inaccurate, incomplete, or non-attributable to You; (d) any tax, regulatory, or audit consequence resulting from a third party's reliance on a Report — save in each case to the extent such liability cannot be limited or excluded under mandatory applicable law.

10. Intellectual property

10.1 The Software, including its source code, object code, design, branding, and documentation, is owned by us and protected by Dutch and international copyright and other IP laws. Except for the licence granted in clause 2, no rights are transferred.

10.2 Your data. All wallet descriptors, xpubs, identity inputs, valuations, and Reports remain Your property. We claim no licence over Your data, do not receive copies of Your data (consistent with clause 5.2), and assert no lien.

11. Termination

11.1 By You. You may terminate this Agreement at any time by uninstalling and ceasing all use of the Software.

11.2 By us. We may terminate this Agreement immediately on notice if You materially breach clause 3 (Restrictions). Termination by us under this clause does not entitle You to a refund.

11.3 Effect of termination. Upon termination: (a) the licence in clause 2 ends; (b) You shall uninstall the Software; (c) Reports You have already generated remain Your property and may continue to be used; (d) clauses 1, 3, 7, 8, 9, 10, 13 and 14 survive.

12. Updates to this Agreement

12.1 We may update this Agreement on reasonable notice published at bitcoinproof.io. An updated version takes effect when it is published, and applies prospectively to use of the Software after that date. Continued use after that date constitutes acceptance. If You do not accept an update, Your remedy is to cease using the Software; Your existing Licence Keys remain valid for the use authorised under the version of the Agreement in force at the time of their issuance.

13. Governing law and forum

13.1 This Agreement is governed by the laws of the Netherlands, excluding its conflict-of-law rules and excluding the United Nations Convention on Contracts for the International Sale of Goods (CISG).

13.2 The exclusive forum for disputes is the District Court of Amsterdam (Rechtbank Amsterdam), the Netherlands.

13.3 Consumer carve-out. If You are a Consumer:

(a) the choice of Dutch law in clause 13.1 does not deprive You of the protection of mandatory provisions of the law of Your country of habitual residence, in accordance with Article 6(2) of Regulation (EC) No 593/2008 (Rome I);

(b) the forum clause in clause 13.2 does not affect Your right to bring proceedings in the courts of Your domicile and Your right not to be sued elsewhere than in the courts of Your domicile, in accordance with Articles 17–18 of Regulation (EU) No 1215/2012 (Brussels Ia) for EU domiciliaries, Articles 15–17 of the Lugano Convention 2007 for Swiss and Norwegian domiciliaries, and applicable Australian law for Australian domiciliaries;

(c) nothing in this Agreement excludes, restricts, or modifies any right or remedy You have under the Australian Consumer Law where it applies.

14. Miscellaneous

14.1 Severability. If any provision is invalid or unenforceable, the rest remains in force.

14.2 No waiver. Failure to enforce any right is not a waiver.

14.3 Entire agreement. This Agreement, together with the ToS and the PDF Disclaimer, is the entire agreement between us in respect of the Software.

14.4 Notices. Notices to us: support@bitcoinproof.io. Notices to You: the email address You used at account creation, or any in-app message.

14.5 Assignment. We may assign this Agreement to a successor business of the eenmanszaak (including upon any conversion to a BV), provided Your rights are not diminished. You may not assign without our consent.

14.6 Language. This Agreement is in English. A translation may be provided for convenience; the English version prevails save where mandatory consumer-protection law requires the local-language version to control.

End of EULA.