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Our take on ActivityPub Protocol

ActivityPub is a decentralized social networking protocol based on the ActivityStreams 2.0 data format. It is a specification published by the World Wide Web Consortium (W3C) that provides a client-server API for creating, updating, and deleting content, as well as a federated server-to-server API for delivering notifications and content.

ActivityPub aims to provide a standard way for computer systems to interact with social networks, blogs, and other online social applications. Here's a breakdown of its key components and principles:

  1. Decentralization: Unlike traditional social networks (e.g., Facebook, TikTok) that are controlled by a single entity, ActivityPub allows for a federated network of servers, each hosting their own instance of an application, to communicate with each other. This means users on different servers can follow, share, and interact with each other just like they do on a centralized platform.

  2. ActivityStreams 2.0: This is the data format used by ActivityPub. It provides a standard way to represent social activities (like posting a message, liking a post, following someone) and social entities (like persons, items, notes) in a JSON format.

  3. Client to Server Interaction: ActivityPub defines a client-to-server protocol, allowing users (through their clients) to perform social activities like creating posts, following other users, liking content, etc. This part of the protocol is similar to how traditional social networking services work but is standardized and can work across different platforms that support ActivityPub.

  4. Server to Server Interaction (Federation): This is what makes ActivityPub unique. It allows servers to communicate with each other (federate), so if a user on one server follows a user on another server, the two servers will communicate to ensure posts are delivered between the two users. This part of the protocol enables the decentralized aspect of the network.

  5. Interoperability: Because ActivityPub is a standard protocol, different services and applications can implement it and be assured that they can interoperate. This means a user on one service can seamlessly interact with users on a different service, provided both services support ActivityPub.

In practice, ActivityPub has been implemented by a variety of social networking platforms, like Mastodon, PeerTube, and Pixelfed, allowing users on these different platforms to interact with each other in a decentralized manner. This decentralization gives users more control over their data and avoids the pitfalls of a single platform controlling a large portion of online social interactions.

To simplify, ActivityPub can be thought of as a common language that different social media platforms use to talk to each other. Imagine if you could use your TikTok account to directly interact with someone's Instagram posts, or if your blog on one site could seamlessly send updates to followers on various other platforms. That's what ActivityPub does, but without any single company controlling the conversation. It's like an open and decentralized postal service for social media, where different platforms, regardless of who runs them, can deliver messages and content to each other efficiently and reliably.

In terms of digital marketing, ActivityPub presents a paradigm shift. The decentralization means marketers would no longer rely solely on the terms and audience of a single platform (like Facebook or TikTok). Instead, their content and campaigns could potentially reach users across a multitude of platforms and apps that speak the ActivityPub language, broadening their reach. However, this also introduces complexity; understanding and navigating a federated network of platforms requires a more nuanced approach than targeting users on a single platform. Marketers may need to adapt their strategies to engage communities in different spaces, tailor content to diverse audiences, and leverage the decentralized nature of ActivityPub to foster direct, meaningful relationships with consumers. In essence, ActivityPub could democratize the digital marketing landscape, but it demands a more sophisticated, community-centric approach from marketers.


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