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-### Key problems and existing approaches 
-
-See links in [overview.md](overview.md) for some mighty attempts at comprehensive lists of dweb protocols and projects.
-
-The purpose of this document is to try to analyze how some of the existing dweb projects attack certain key problems:
-
- * discovery of users and content
- * interoperable messaging
- * message queueing and persistence
- * reputation
- * identity and pseudonymity
- * metadata and ownership
- * economy of services
- * scalability
- * testing and metrics
- 
- Fundamental user stories being addressed here:  I want to...send a message to a person I know, and I don't know what system they use for messaging; find a topic or person by keyword search; find reliable and credible information or resources on a topic; know the ownership/conditions around resources I find; have a way to pay for all the services without privacy intrusions; have a fast and stable experience at global scale; and have some way to evaluate all of the above on different systems.
- 
- ### Discovery
- 
- * gossip mesh systems
- 
- * indexing and follow-bots
- 
-_how does one discover users and topics within each ecosystem_
-IRIS - WoT mapping of human readable names to identity attributes - https://github.com/irislib/iris
- 
- ### Messaging between systems
- 
-*What does a message from a user to another user look like on the wire?* 
- _(how similar are the schemas?  can there be a universal schema with namespacing?)_
- 
-* Matrix - https://matrix.org/docs/spec/
- (proposal for related events - https://github.com/matrix-org/matrix-doc/blob/matthew/msc1849/proposals/1849-aggregations.md)
-Matrix messages are sent to rooms, which users are subscribed to.  to message a user you first invite them to a room
-```
-PUT /_matrix/client/r0/rooms/%21636q39766251%3Aexample.com/send/m.room.message/35 HTTP/1.1
-Content-Type: application/json
-
-{
-  "msgtype": "m.text",
-  "body": "hello"
-}
-```
- 
-* ActivityPub - https://www.w3.org/TR/activitypub/
-POST to the user's server's outbox endpoint
-```{"@context": "https://www.w3.org/ns/activitystreams",
- "type": "Note",
- "to": ["https://chatty.example/ben/"],
- "attributedTo": "https://social.example/alyssa/",
- "content": "Say, did you finish reading that book I lent you?"}
-```
- 
- ### Message queueing and persistence
- 
- * Matrix - peered storage, replicated JSON between nodes
- 
- * GUN - graph db
- 
- * Mastodon - federated servers
- 
- ### General decentralized storage
- 
- * IPFS - immutable, content-hash addressed
-
- * DAT 
-
- * mutable systems using CRDTs
- 
-Example: GUN stores hacker noon annotations on user local storage - https://www.coindesk.com/hacker-noon-is-storing-content-on-a-blockchain-after-ditching-medium
- 
- 
- ### Reputation/credibility
- 
- * IRIS
- 
- ### Identity
- 
- ### Metadata and ownership
- 
- * Ceramic
- 
- ### Economy of services
- 
- ### Scalability
- 
- * AXE (reduce unneeded connections) 
- https://gun.eco/docs/AXE
-
- ### Testing and Metrics
- 
- * PANIC - https://github.com/gundb/panic-server
- 
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