Show HN: Hexplain – Making medical papers accessible with AI https://ift.tt/t4g7jNR

Show HN: Hexplain – Making medical papers accessible with AI https://hexplain.ai/ June 9, 2025 at 02:40AM

Show HN: Chaum Pedersen ZK Protocol Using gRPC https://ift.tt/IAzlKn7

Show HN: Chaum Pedersen ZK Protocol Using gRPC Here is the protocol worklow. Let us define g as the generator of the multiplicative cyclic group G of order q. Let us define p = 2q + 1 (a safe prime). The values p, g, a1, b1, c1 are publicly available to the prover and the verifier. a1 = g^a mod q b1 = g^b mod q c1 = g^ab mod q where a and b are cryptographically secure randomly generated numbers. prover wants to prove he knows a secret x. the prover computes y1 = g^x mod q and y2 = b1^x mod q. the prover sends y1 and y2 to the verifier. The verifier then computes a challenge value s and sends it to the prover. the prover then computes z = (x + as) mod q. the prover sends z to the verifier. The verifier then does two checks, g^z mod q = a1^s * y1 mod q and b1^z mod q = c1^s * y2 mod q. If the checks are satisfied that means the prover has proved that he indeed knows x. It can be mathematically proven that these checks are indeed true if and only if the prover knows a valid x. https://ift.tt/NdjfEwK June 8, 2025 at 10:50PM

Show HN: CurveFit Pro – Advanced nonlinear curve fitting in the browser https://ift.tt/SnJTqyM

Show HN: CurveFit Pro – Advanced nonlinear curve fitting in the browser We are pleased to announce a new version of our curve fitting web app with a whole new backend, front end, and all of the bells and whistles. If you see anything left out, or that could be improved, please let us know!! We'd love to hear any feedback from this amazing community. https://ift.tt/yHzluLN June 8, 2025 at 09:01PM

Show HN: Small tool to query XML data using XPath https://ift.tt/Nj0hkC3

Show HN: Small tool to query XML data using XPath https://ift.tt/Ki0awuC June 8, 2025 at 02:23AM

Show HN: AI that extracts brand identity from websites to generate ads https://ift.tt/kiscW18

Show HN: AI that extracts brand identity from websites to generate ads I built this because I kept procrastinating on creating ads for my projects. The technical challenge was interesting: how do you teach AI to extract "brand identity" from a website? Turns out websites are messy. Finding the actual logo vs random images, identifying brand colors vs generic link colors, understanding brand voice from homepage copy. The solution: Custom vision models + CSS parsing + GPT-4 for voice analysis. You paste a URL, it extracts brand elements, generates platform-specific ads. Not trying to "disrupt advertising" or anything dramatic. Just solving the specific problem of "I need a Facebook ad but Canva makes me want to cry." Built with Next.js, custom image processing pipeline, OpenAI API. The brand extraction accuracy is around 85% for well-structured sites, lower for sites that are... creative with their CSS. Happy to discuss the technical approach or share code snippets if anyone's curious about the brand extraction pipeline. https://board.ad https://www.board.ad June 8, 2025 at 10:45AM

Show HN: A free, fast, and modern vehicle diagnostics tool https://ift.tt/eHSZ074

Show HN: A free, fast, and modern vehicle diagnostics tool https://ift.tt/YxHn56f June 7, 2025 at 11:57PM

Show HN: Solomon's Agent - a CLI to simplify the web https://ift.tt/jHoEDMb

Show HN: Solomon's Agent - a CLI to simplify the web https://ift.tt/Hc7kCWR June 6, 2025 at 10:54PM