Founder of proxae.com & protonurl.com

Guillaume L.  • Peerlist

<h3>Secure and Confidential Sharing</h3><ul><li>End-to-end encrypted sharing of text and files.</li><li>Links self-destruct after the first read, ensuring content is only viewed once.</li><li>Optional custom encryption keys for enhanced security.</li><li>Files up to 10 MB can be attached and are encrypted with the same key as the text.</li><li>Content is stored on secure servers in Europe and is automatically deleted upon first access or expiration.</li><li>Provides cryptographic proof of deletion, verifiable independently.</li><li>Offers a secure alternative to sharing sensitive information via email or SMS.</li><li>Integrates with Proxae for blockchain timestamp certification of ideas and creations.</li></ul>protonURL is designed to provide a secure and confidential content-sharing service. The service ensures that sharing links self-destruct after the first access, meaning that shared data can only be viewed once. This limits access to the shared data and reduces the risk of leaks or misuse. Data is encrypted with AES-256-CBC encryption, with a different key and IV used for each content. Attached files are also encrypted and stored outside the web directory, making them inaccessible via HTTP. The original filename is also encrypted separately. Both the file and its metadata are permanently deleted upon first access or expiration. The service also offers deletion proofs that certify that a URL's content has been permanently destroyed, which can be cryptographically signed and verified independently.

protonURL

<h3>Certify Your Ideas on the Bitcoin Blockchain</h3>Proxae provides a robust solution to permanently certify your texts, ideas, and files by anchoring their fingerprints to the Bitcoin blockchain. This ensures that your creations are verifiable forever, independently, and without requiring any trust in a third party.<ul><li>Timestamping: Securely timestamp any text, idea, or file to prove prior existence.</li><li>File Certification: Supports all file types (PDF, DOCX, TXT, JPG, PNG, ZIP, MP3, MP4, etc.) with a maximum file size of 50 MB. The fingerprint calculation is performed locally in your browser, ensuring your content never leaves your device.</li><li>Web Page Capture: Certify web pages by capturing their content. An account is required for this feature, which is free to sign up for.</li><li>Verifiable Proof: Proxae anchors the SHA-256 fingerprint of your content into the Bitcoin blockchain using OpenTimestamps. This creates an immutable and permanent proof of existence.</li><li>Interactive Demo: Experience a 30-second interactive demo to see how Proxae anchors your proof in the Bitcoin blockchain.</li><li>Free and Unlimited: Try Proxae for free with no sign-up required for basic certification.</li></ul>How it Works:<ol><li>Upload/Input: Drop a file or provide a web page URL.</li><li>Fingerprint Calculation: A SHA-256 fingerprint is computed locally on your device.</li><li>Bitcoin Anchoring: The fingerprint is anchored to the Bitcoin blockchain, creating a permanent record.</li><li>Confirmation: The certification is confirmed and immutable, verifiable at any time.</li></ol>Proxae leverages the tamper-proof nature of the Bitcoin ledger to establish prior existence with cryptographic strength, serving as a reliable alternative for idea prior art and Soleau envelopes.