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# GUN
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GUN is a decentralized graph database, and an ecosystem of tools.
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The stack includes:
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- [ERA ](https://www.youtube.com/watch?v=1HJdrBk3BlE ) (economic system)
- [AXE ](http://axe.eco ) (routing)
- [DAM ](https://gun.eco/docs/DAM ) (networking)
- [RAD ](https://gun.eco/docs/RAD ) (storage)
- [SEA ](https://gun.eco/docs/SEA ) (security)
- [GUN ](http://gun.eco ) (data)
- [HAM ](https://gun.eco/distributed/matters.html ) (conflict resolution)
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### Network structure
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Decentralized/p2p. Uses data replication via message passing.
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It daisy-chains, [routes ](https://gun.eco/docs/Routing ), & relays messages.
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It also works over most existing transports: WebRTC, UDP multicast, TCP/HTTP -> Websocket, etc.
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## Identity
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GUN supports multi-device login that is cryptographically secure yet uses "normal" UX. (?) This technique can be extended to secure password resets (no servers).
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There is a password recovery mechanism using a 3-Friend-Authorization approach.
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Iris adds a [reputation system ](https://medium.com/@mmalmi/learning-to-trust-strangers-167b652a654f ) to SEA which provides the underlying cryptographic Security, Encryption, & Authorization.
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#### Data
- Data models (graphs, key/value, document, table, relational, hyper-graphs)
- Data availability ([AP](https://gun.eco/docs/CAP-Theorem), strongly eventually consistent)
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#### Monetization
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- Business models (Open Source, donation, enterprise, + decentralized PaaS, dBaaS, SaaS, Marketplace)
- Payment (AXE bandwidth credits)
#### Filtering
- Queries (GUN, [GraphQL ](https://github.com/brysgo/graphql-gun ), historical prototypes of SQL, Mango [Mongo])
#### Moderation
Iris and NAB (see above link).
- Protocol level (no)
- Server level (no)
- User level (yes)
- Content level (yes)
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### Privacy and Access Control
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1. Cryptographic keys are assigned to roles, groups, or data points.
2. This information is either used to derive a shared ECDH secret to decrypt (read)
3. Or used to load collaborative multi-writer edits (signed).
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### Interoperablity
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Plugins, such as backup storage on centralized databases or file systems, can be used to extend GUN.
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### Scalability
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A user reported a [70% cost savings ](https://twitter.com/cagataycali/status/1245442681251205120 ) on cloud bills on a project with 1M+ page loads a month.
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### Metrics
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- 11K+ [github ](https://github.com/amark/gun ) stars
- 10M ~ 30M monthly [downloads ](https://www.jsdelivr.com/package/npm/gun )
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### Implementations
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- [Internet Archive ](https://news.ycombinator.com/item?id=17685682 ) (library meta-data)
- [HackerNoon ](https://hackernoon.com/state-of-hacker-noon-2019-2020-8w1ls3axx ) (annotations)
- [Meething ](https://meething.space/ ) (Mozilla backed secure & decentralized video conferencing powered by GUN)
- Iris, Notabug, DTube, others...
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[Party ](https://party.lol/ )
[Notabug ](https://notabug.io/t/notabug/comments/59382d2a08b7d7073415b5b6ae29dfe617690d74/welcome-to-notabug )
### Links
[Whitepaper ](https://stanford.edu/~nadal/A-Decentralized-Data-Synchronization-Protocol.pdf )
