delightful-fediverse-apps/Watchlist-for-ActivityPub-developer-resources.md

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* :heavy_check_mark: == added to live website at [**fediverse.party**](https://fediverse.party)
* :black_nib: == newly added to this page (added, not altered. Only @light to remove please)
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## Contents
- [Developer tools](#developer-tools)
- [Libraries](#libraries)
- [Plugins](#plugins)
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- [Relays](#relays)
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- [Bridges](#bridges)
- [Utilities](#utilities)
- [Testing](#testing)
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- [Miscellaneous projects](#miscellaneous-projects)
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- [Search](#search)
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- [Social sharing](#social-sharing)
- [Other projects](#other-projects)
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- [Reference material](#reference-material)
- [Protocol specifications](#protocol-specifications)
- [API documentation](#api-documentation)
- [Tutorials](#tutorials)
- [Getting started](#getting-started)
- [ActivityPub server-to-server (S2S)](#activitypub-server-to-server-s2s)
- [ActivityPub client-to-server (C2S)](#activitypub-server-to-server-s2s)
- [WebFinger](#webfinger)
- [Security](#security)
- [Research & Development](#research-development)
- [Datashards](#datashards)
- [Object capabilities](#object-capabilities)
- [Federated authentication](#federated-authentication)
- [Content addressing](#content-addressing)
- [Peer-to-peer networking](peer-to-peer-networking)
## Developer tools
#### Libraries
* :heavy_check_mark: [**ActivityPhp**](https://github.com/landrok/activitypub) ([site](https://landrok.github.io/activitypub), [Fedi account](https://cybre.space/@landrok)): A PHP implementation of ActivityPub protocol based upon the ActivityStreams 2.0 data format. `MIT, PHP`
* :heavy_check_mark: [**ActivityPub Express**](https://github.com/immers-space/activitypub-express): Modular ActivityPub implementation as Express.js middleware to easily add decentralization and federation to Node apps `-, Javascript`
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* :heavy_check_mark: [**ActivityPub-PHP**](https://github.com/pterotype-project/activitypub-php) ([Fedi account](https://mastodon.technology/@jdormit)): A PHP implementation of the ActivityPub protocol (used in Pterotype plugin). `MIT, PHP`
* :heavy_check_mark: [**activityPub4j**](https://github.com/msummers/activityPub4j): W3C ActivityPub and ActivityStreams implementation in Java using Spring Boot. `?, Java` (no license, see: [issue](https://github.com/msummers/activityPub4j/issues/1))
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* :heavy_check_mark: [**ActivityStreams**](https://github.com/OpenSocial/activitystreams): Full ActivityStreams 1.0 and 2.0 reference implementation in Java. `Apache-2.0, Java`
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* :black_nib: [**ActivityServe**](https://github.com/writeas/activityserve): A very light ActivityPub library in Go (used to power [pherephone](https://github.com/writeas/pherephone)) `MIT, Go`
* :heavy_check_mark: [**ActivityStreams-2**](https://github.com/gobengo/activitystreams2): ActivityStreams 2.0 library for Node.js and TypeScript. `Apache-2.0, Typescript`
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* :heavy_check_mark: [**astreams**](https://github.com/MatejLach/astreams) ([Fedi account](https://social.matej-lach.me/@MatejLach)): A hand-crafted implementation of the Activity Streams 2.0 specification in Go, especially suitable for projects implementing ActivityPub. `AGPL-3.0, Go`
* :heavy_check_mark: [**atoot**](https://github.com/popura-network/atoot): Library providing an easy way to create Mastodon API applications `MIT, Python`
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* :black_nib: [**Clovis**](https://github.com/WellFactored/clovis): [ARCHIVED] Implementation of ActivityPub in Scala. (Hobby project included here for reference only.) `AGPL-3.0, Scala`
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* :heavy_check_mark: [**CommonsPub**](https://gitlab.com/CommonsPub) ([site](http://commonspub.org)): Building blocks for creating multifunctional federated networks with ActivityPub. `AGPL-3.0, Elixir`
* :heavy_check_mark: [**corpus-activity-streams**](https://github.com/ryanatkn/corpus-activity-streams): Activity Streams 2.0 vocabulary data and alternative docs. `Unlicense license, Typescript`
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* :black_nib: [**dda-masto-embed**](https://github.com/DomainDrivenArchitecture/dda-masto-embed) ([Fedi account](https://social.meissa-gmbh.de/@team)): Embeds mastodon timline into a html page. Uses JS, no intermediate server required. `Apache-2.0, ClojureScript`
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* :heavy_check_mark: [**Express ActivityPub**](https://github.com/dariusk/express-activitypub): A very simple reference implementation of an ActivityPub server using Express.js. `MIT, Javascript`
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* :heavy_check_mark: [**Federation**](https://git.feneas.org/jaywink/federation): Library to abstract social web federation protocols like ActivityPub, Diaspora and Matrix (see [docs](https://federation.readthedocs.io)) `BSD-3-clause, Python`
* :heavy_check_mark: [**Golang ActivityPub**](https://github.com/go-ap) ([Fedi account](https://metalhead.club/@mariusor)): Libraries for using ActivityPub in the Go language. `MIT, Go`
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* :heavy_check_mark: [**go-fed activity**](https://github.com/go-fed/activity) ([site](https://go-fed.org), [Fedi account](https://mastodon.technology/@cj)): Full ActivityStreams & ActivityPub implementation in Golang. Extensions can be easily added by design-time code generation from JSON-LD schema's (also supports [ForgeFed](https://forgefed.peers.community) this way, by default). `BSD-3-clause, Go`
* :heavy_check_mark: [**go-fed apcore**](https://github.com/go-fed/apcore) ([site](https://go-fed.org), [Fedi account](https://mastodon.technology/@cj)): A powerful single server ActivityPub framework for performant Fediverse applications. `AGPL-3.0, Go`
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* :black_nib: [**go-mastodon**](https://github.com/mattn/go-mastodon): Mastodon client for Golang. `MIT, Go`
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* :heavy_check_mark: [**http-signature**](https://github.com/mtti/http-signature): Implementation of the HTTP Signature scheme as used in ActivityPub. `Apache-2.0, Typescript`
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* :heavy_check_mark: [**Little Boxes**](https://little-boxes.readthedocs.io): Tiny ActivityPub framework, both database and server agnostic `ISC, Python`
* :heavy_check_mark: [**Little Library**](https://github.com/Alamantus/little-library): A digital give-a-book, take-a-book library for ebooks `AGPL-3.0, Javascript`
* :heavy_check_mark: [**Mastodon.py**](https://github.com/halcy/Mastodon.py): Python wrapper for the Mastodon API. `MIT, Python`
* :heavy_check_mark: [**Pubstrate**](https://gitlab.com/dustyweb/pubstrate): ActivityStreams and ActivityPub library implementation for GNU Guile. Includes a full ActivityStreams library and most of an ActivityPub implementation. `GPL-3.0, Guile`
* :heavy_check_mark: [**Python ActivityPub**](https://github.com/dsblank/activitypub): A general ActivityPub library `MPL-2.0, Python`
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#### Plugins
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* :heavy_check_mark: [**ActivityPub for Drupal**](https://github.com/swentel/activitypub) ([Lead dev](https://realize.be/user/1)): ActivityPub integration for Drupal 8 (see also [lite version](https://www.drupal.org/project/activitypub/) at Drupal) `GPL-2.0, PHP`
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* :heavy_check_mark: [**Hugo-ActivityStreams**](https://git.jlel.se/jlelse/hugo-activitystreams): A Hugo module for use in Hugo, to generate ActivityStreams representations of posts. ([mirror](https://codeberg.org/jlelse/hugo-activitystreams)) `MIT, Go`
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* :heavy_check_mark: [**Pterotype**](https://github.com/pterotype-project/pterotype): WordPress plugin. Pterotype connects your blog to the Fediverse by giving it an ActivityPub feed `MIT, PHP`
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* :heavy_check_mark: [**WordPress-ActivityPub**](https://github.com/pfefferle/wordpress-activitypub): ActivityPub for Wordpress `MIT, PHP`
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* :heavy_check_mark: [**WordPress-OStatus**](hhttps://github.com/pfefferle/wordpress-ostatus): An OStatus plugin for WordPress `MIT, PHP`
* :heavy_check_mark: [**XWiki Extension for ActivityPub**](https://github.com/xwiki-contrib/application-activitypub) ([site](https://extensions.xwiki.org/xwiki/bin/view/Extension/ActivityPub%20Application/), [Fedi account](https://social.weho.st/@XWiki)): An implementation of the ActivityPub protocol for XWiki (see [forum discussion](https://forum.xwiki.org/t/new-application-activitypub/6186)). `LGPL-2.1, Java`
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#### Relays
* :heavy_check_mark: [**Activity Relay**](https://git.pleroma.social/pleroma/relay): A generic LitePub relay (works with all LitePub consumers and Mastodon). `AGPL-3.0, Python`
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* :heavy_check_mark: [**Hash2Pub**](https://git.orlives.de/schmittlauch/Hash2Pub) ([Fedi account](https://toot.matereal.eu/@schmittlauch)): A fully-decentralised DHT-based relay for global hashtag federation. See [White paper](https://git.orlives.de/schmittlauch/paper_hashtag_federation), [status update](https://socialhub.activitypub.rocks/t/542/19) (Nov 2020) `AGPL-3.0, Haskell`
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* :heavy_check_mark: [**Pub relay**](https://source.joinmastodon.org/mastodon/pub-relay) `AGPL-3.0, Crystal`
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* :heavy_check_mark: [**Seattle relay**](https://gitlab.com/jankysolutions/social.seattle.wa.us/relay) `-, Python`
* :heavy_check_mark: [**Social relay**](https://git.feneas.org/jaywink/social-relay): Public post relay for the diaspora* federated social network protocol. `AGPL-3.0, Python`
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For an overview of known relays, see [A sorted list of ActivityPub relays for Mastodon or Pleroma](https://github.com/brodi1/activitypub-relays).
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#### Bridges
* :heavy_check_mark: [**BirdSiteLIVE**](https://github.com/NicolasConstant/BirdsiteLive) ([Fedi account](https://fosstodon.org/@BirdsiteLIVE)): An ethical bridge from Twitter `AGPL-3.0, C#`
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* :heavy_check_mark: [**BridgyFed**](https://github.com/snarfed/bridgy-fed) ([site](https://fed.brid.gy)): Bridges the IndieWeb to federated social networks: ActivityPub, OStatus, etc. `Public Domain, Python`
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* :heavy_check_mark: [**Fediverse-Action**](https://github.com/rzr/fediverse-action): Github Action that posts to Fediverse when code is changed. `ISC License, Javascript`
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* :heavy_check_mark: [**feed2toot**](https://gitlab.com/chaica/feed2toot): Parses RSS feeds, identifies new posts and posts them on the Mastodon social network ([using the Mastodon API]((https://gitlab.com/chaica/feed2toot/issues/35#note_289027030))). `MIT, Python`
* :heavy_check_mark: [**gemifedi**](https://git.sr.ht/~boringcactus/gemifedi): A Gemini frontend to the fediverse (specifically, Mastodon and Pleroma instances). `AGPL-3.0, Rust`
2021-02-12 05:44:14 +00:00
* :heavy_check_mark: [**Kazarma**](https://gitlab.com/kazarma/kazarma/): A Matrix bridge to ActivityPub. `AGPL-3.0, Elixir`
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* :heavy_check_mark: [**Libervia**](https://repos.goffi.org/sat/file/tip) ([site](https://salut-a-toi.org/), [Fedi account](https://mastodon.social/@Goffi)): An XMPP <=> ActivityPub gateway project doubled with XMPP Pubsub end-to-end encryption `AGPL-3.0, Python`
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* :heavy_check_mark: [**ligh7hau5**](https://github.com/vulet/ligh7hau5): A Matrix to Fediverse / ActivityPub client / bridge. Also, some media proxying. `GPL-3.0, Javascript`
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* :heavy_check_mark: [**Moa**](https://gitlab.com/fedstoa/moa) ([site](https://moa.party/)): A Mastodon, Twitter, and Instagram Cross-poster. `MIT, Python`
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* :heavy_check_mark: [**MXToot**](https://github.com/ma1uta/mxtoot) ([Fedi account](https://mastodon.social/@ma1uta)): A Matrix <--> Mastodon bot written in Java. `Apache-2.0, Java`
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* :heavy_check_mark: **[Nautilus](https://github.com/aaronpk/Nautilus)**: A standalone service to deliver posts from your own website to ActivityPub followers. `Apache-2.0, PHP`
2021-04-12 21:11:33 +00:00
* :heavy_check_mark: **[PeerTube (on Matrix) Search](https://github.com/vranki/hemppa#peertube-search)**: Search PeerTube via Matrix, using Sepia Search API to search on all participating public PeerTube instances. You can also select any single instance. It's implemented as a module for Hemppa the bot. `GPL-3.0, Python`
* :heavy_check_mark: [**RSS-to-ActivityPub Converter**](https://github.com/dariusk/rss-to-activitypub): Convert any RSS feed to an ActivityPub actor that can be followed by users on ActivityPub-compliant social networks like Mastodon. `MIT, Javascript`
* :heavy_check_mark: **[YouTube2PeerTube](https://github.com/mister-monster/YouTube2PeerTube)**: A bot that mirrors YouTube channels to PeerTube channels as videos are released in a YouTube channel. `AGPL-3.0, Python`
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#### Utilities
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* :black_nib: [**ActivityPubSchema**](https://github.com/redaktor/ActivityPubSchema): JSON Schema definition of the ActivityStreams and ActivityPub specifications. `MIT, Javascript`
* :heavy_check_mark: [**FediHealth**](https://git.feneas.org/buttle/fedihealth): Software to help you define federation policies for your node. `AGPL-3.0, Python`
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* :heavy_check_mark: [**Fediverse Stats**](https://gitlab.com/spla/fediverse) ([Fedi account](https://mastodont.cat/@fediverse)): Collects maximum number of alive fediverse's servers and then query their API to obtain their registered users. `GPL-3.0, Python`
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* :black_nib: [**mastodon-backup**](https://github.com/kensanata/mastodon-backup) ([Fedi account](https://octodon.social/@kensanata)): Archive your statuses, favorites and media using the Mastodon API. `GPL-3.0, Python`
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* :heavy_check_mark: **[Mastotool](https://github.com/muesli/mastotool)**: A collection of tools to work with your Mastodon account; displays account statistics and lets you search your toots. `MIT, Go`
* :heavy_check_mark: [**OCR Bot**](https://github.com/Lynnesbian/OCRbot/) ([Fedi account](https://fedi.lynnesbian.space/@lynnesbian)): An OCR (Optical Character Recognition) bot for Mastodon (and compatible) instances `AGPL-3.0, Python`
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* :heavy_check_mark: [**Pherephone**](https://github.com/writeas/pherephone): An ActivityPub server that reblogs all the statuses of certain actors. You set it up to follow a few accounts and it announces everything they post. `AGPL-3.0, Go`
* :heavy_check_mark: [**tags-pub**](https://gitlab.com/evanp/tags-pub): Provides hashtag objects on the ActivityPub network. `Apache-2.0, Javascript`
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* :heavy_check_mark: [**yt2pt**](https://github.com/buoyantair/yt2pt): A simple set of scripts to quickly import your youtube channel to Peertube. `MIT, Javascript`
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* :heavy_check_mark: [**Moderator Alerts**](https://gitlab.com/stemid/mastodon-moderator-alerts) ([Fedi account](https://mastodon.se/@stemid)): Mastodon moderation alerts using Pushover.net. `-, Python`
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#### Testing
* :heavy_check_mark: [**activitypub-mock**](https://gitlab.com/evanp/activitypub-mock): A mock ActivityPub server to use in testing code `Apache-2.0, Javascript`
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* :black_nib: [**dfk-ap**](https://glitch.com/edit/#!/dfk-ap?path=README.md%3A1%3A0) ([site](https://tinysubversions.com/notes/activitypub-tool/)): A small ActivityPub debugging server on Glitch `MIT, Javascript`
* :heavy_check_mark: [**FediDB**](https://fedidb.org/about): A suite of tools for AP devs to help make it easier to test and validate your implementation with existing implementations like Mastodon, PeerTube, Pixelfed and Pleroma `-, -`
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* :heavy_check_mark: [**Test Suite**](https://github.com/go-fed/testsuite): An unofficial partially-automated ActivityPub test suite `AGPL-3.0, Go`
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## Miscellaneous projects
This category is for any code project related to the Fediverse. They need not be directly development related.
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#### Search
* :black_nib: [**Sepia Search**](https://framagit.org/framasoft/peertube/search-index/) ([site](https://sepiasearch.org/)): A search engine of PeerTube videos and channels Developed by Framasoft `AGPL-3.0, Typescript`
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#### Social sharing
* :heavy_check_mark: [**Share Buttons**](https://git.fsfe.org/FSFE/share-buttons): Share buttons that support dynamic input of Fediverse URLs and require no Javascript. `AGPL-3,0, PHP`
2021-03-28 07:19:45 +00:00
* :heavy_check_mark: [**Share Freedom**](https://gitlab.com/mugcake/share-freedom-extension): Firefox toolbar extension to share the current browser tab to the Fediverse `GPL-3.0, Javascript`
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#### Other projects
* :black_nib: [**Mastodon Simplified Federation**](https://github.com/rugk/mastodon-simplified-federation): Simplifies following and interacting with remote users on other Mastodon instances. `ISC, Javascript`
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## Reference material
#### Protocol specifications
* :heavy_check_mark: [**ForgeFed**](https://notabug.org/peers/forgefed), formerly GitPub ([site](https://forgefed.peers.community), [Fedi account](https://floss.social/@forgefed)): A set of extensions to ActivityPub for federation between code forges (i.e. git hosting sites like GitLab, Gogs, Gitea, etc. Reference implementation is [Vervis](https://dev.angeley.es/s/fr33domlover/p/vervis)). `CC0-1.0`
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* :heavy_check_mark: [**LitePub**](https://github.com/litepub/litepub) ([Fedi account](https://pleroma.site/users/kaniini)): A set of extensions to AP, being developed by devs from Pleroma and Mastodon (status: for the most part litepub group folded back into SocialCG, see: [issue](https://github.com/litepub/litepub/issues/6))
* :heavy_check_mark: [**NodeInfo2**](https://git.feneas.org/jaywink/nodeinfo2): An effort to create a standardized way of exposing metadata about a server. Helps expose ownership and organization details, usage statistics and protocol capabilities. `CC0-1.0`
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* :black_nib: [**Podcasting**](https://github.com/Podcastindex-org/activitypub-spec-work): Workspace for defining ActivityPub and ActivityStream extensions for Podcasting with the intention to define a W3C Recommendation for them.
2021-07-08 17:07:50 +00:00
* :heavy_check_mark: [**SciFed**](https://synalp.frama.io/olki/scifed/) (Fedi accounts: [@rigelk](https://olki-social.loria.fr/@rigelk), [@cerisara](https://mastodon.etalab.gouv.fr/@cerisara)): A specification standard (Draft) for federation of scientific activities and content using ActivityPub, developed as part of the [OLKi](https://olki.loria.fr/) project.
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#### API documentation
## Tutorials
#### Getting started
#### ActivityPub server-to-server (S2S)
#### ActivityPub client-to-server (C2S)
#### WebFinger
#### Security
#### NodeInfo
## Research & Development
#### Datashards
#### Object capabilities
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#### Federated auth/authz
* :black_nib: [**The did:orb Method**](https://trustbloc.github.io/did-method-orb/) ([github](https://github.com/trustbloc/did-method-orb)): A DID Method for a fediverse of interconnected nodes and witnesses.
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#### Content addressing
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* :black_nib: [**Content-addressible RDF**](https://openengiadina.net/papers/content-addressable-rdf.html): A scheme based on RDF allowing for data to be referred to by an identifier determined by the data itself (written by @pukkamustard of [openEngiadina](https://openengiadina.net), specification now part of [DREAM](https://dream.public.cat/pub/dream-data-spec))
2021-03-31 14:10:55 +00:00
* :black_nib: [**Encoding for Robust Immutable Storage** (ERIS)](https://inqlab.net/projects/eris/): ERIS is an encoding of arbitrary content into a set of uniformly sized, encrypted and content-addressed blocks as well as a short identifier (a URN) (written by @pukkamustard of [openEngiadina](https://openengiadina.net), specification now part of [DREAM](https://dream.public.cat/pub/dream-data-spec)).
#### Distributed Mutable Containers
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* :black_nib: [**Distributed Mutable Containers** (DMC)](https://inqlab.net/projects/dmc/): Distributed data structures that can hold references to content while allowing replicas of the data structures to diverge and merge without conflict (developed by [DREAM](https://dream.public.cat/pub/dream-data-spec))
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#### Peer-to-peer networking