Infinite Tech Lab

Putting Published Data on a Blockchain: A Practical Guide from First Principles Blockchains excel at immutability and verifiable provenance, making them a strong foundation for timestamping, source attestation, and version tracking of already-public materials like reports, datasets, disclosures, or research notes. The core idea is simple: anchor a tamper-evident “fingerprint” of the content on-chain and keep the heavy content off-chain, so anyone can later verify when and what was published without bloating the chain. Why anchor published data on-chain Integrity and tamper-evidence: A cryptographic hash uniquely represents the content; any later alteration will produce a different hash, making changes detectable. Provenance and timing: On-chain transactions provide transparent timestamps and signer identities, helping auditors, reviewers, and the public confirm who published what and when. Cross-organization trust: Shared ledgers reduce reliance on any single repository, supporting mul...

How Passkeys Work: A Simple Guide to Passwordless Authentication Passkeys are transforming the way we secure our online accounts, offering a simpler, safer alternative to traditional passwords. But what exactly are passkeys, and how do they work? In this blog post, we’ll break down the technology behind passkeys, their benefits, and how they’re paving the way for a passwordless future. What Are Passkeys? Passkeys are a modern authentication method designed to replace passwords with a more secure and user-friendly approach. Built on the WebAuthn (Web Authentication) standard, passkeys leverage public-key cryptography and are often tied to a user’s device, such as a smartphone or computer. They allow you to log in to websites and apps without typing a password, using biometrics (like fingerprint or face recognition), a PIN, or a device-specific security mechanism. Unlike passwords, which can be forgotten, stolen, or guessed, passkeys are resistant to phishing, credential stuffing, and ot...