ink is a browser-based tool designed to provide immutable proof of file integrity by generating and storing file fingerprints on the Hive blockchain. It addresses the need for users to verify that documents, images, music, software, and other files have not been tampered with or altered. The platform allows individuals to create a unique SHA256 hash of their file directly within their browser, ensuring that the original file is never uploaded or transmitted to external servers.
ink, users select a file to be fingerprinted in a local browser session, where the tool computes a deterministic hash. This hash, along with optional metadata such as filename, file size, and creation date, can then be stored publicly on the Hive blockchain. Storing the fingerprint requires a Hive account, and users must send a small amount of Hive or Hive Backed Dollars (HBD) as part of the transaction. 001 Hive or HBD, and all contributions are used to maintain the service. The process leverages the Hive blockchain's public, decentralized ledger and fast confirmation times to guarantee the immutability and public verifiability of the stored fingerprint.
ink-generated certificate file. The validation process, like fingerprinting, happens entirely within the browser, ensuring that files remain private and are never uploaded. The service is suitable for anyone who needs to prove the integrity of digital files, including documents, images, and software, at a specific point in time.
The tool is created by an individual known as @roelandp and operates as a donation-supported web application. ink positions itself as a solution for trustless, tamperproof file integrity verification, utilizing the publicly accessible and immutable Hive blockchain as its underlying infrastructure.
In the Infrastructure & Backend space, Proof.ink takes a focused approach. It focuses on ensuring the integrity and authenticity of files by storing their fingerprints on the blockchain. Proof.ink is a consumer product aimed at individuals and organizations needing tamperproof file verification. It runs on the web.
Across PulseGate's embedding index, Proof.ink has few near neighbours, marking it as relatively distinct. Among its 5 catalogued features are file fingerprinting, blockchain storage, and file integrity verification.
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