Computer software platforms for developing, building, and operating distributed applications; computer application software for blockchain-based platforms, namely, software platforms for distributed applications and software using a consensus engine incorporating blockchain technology for securing data with cryptographic information; computer software platforms for developing and building of distributed software applications and distributed computing platforms; computer software platforms for blockchains; platform as a service (PAAS) featuring computer software platforms that allows users to perform noncustodial, peer-to-peer, permissionless transactions; providing online non-downloadable software for initiating, managing and tracking peer-to-peer transactions on a distributed computer network; providing temporary use of non-downloadable software and applications for reception, retrieval, transmission and back-up of open-source transactions peer-to-peer; providing temporary use of non-downloadable software for the hosting and managing digital content; providing temporary use of non-downloadable software for end-to-end cryptography using permissionless blockchain