WriteSafe: uma aplicação web para registro de obras autorais baseada em tecnologia blockchain

Abstract

This paper describes the development and implementation of WriteSafe, a functional web application that provides digital proof of authorship for songs, lyrics, and poetry. The implemented solution integrates the Polygon blockchain for prior art registration, decentralized storage on IPFS via Pinata, and Cloudinary as an intermediate storage system. This architecture creates immutable, timestamped, and publicly verifiable evidence of authorship, addressing the demand for agile and accessible copyright protection methods. The registration workflow was implemented with a focus on user experience, abstracting the complexity of Web3. The process begins with the submission of the work and a simulated credit card payment, utilizing the Mercado Pago test environment. Upon confirmation, the system uploads the work to IPFS, obtains the Content Identifier (CID), and registers it on a custom Smart Contract on the Polygon network via an institutional wallet. As a result, a digital PDF certificate is generated, containing the work’s metadata, evidentiary hashes, and a QR code that links to the public transaction on Polygonscan. The development followed a Minimum Viable Product (MVP) strategy, which resulted in a functional platform featuring the essential functionalities for the creator and administrator profiles, including an administrative dashboard for monitoring platform statistics.