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Changes for page Networks

Last modified by Zenna Elfen on 2025/11/24 12:07
From version 13.1
edited by Zenna Elfen
on 2025/11/24 11:47
Change comment: There is no comment for this version
To version 9.1
edited by Zenna Elfen
on 2025/11/23 22:48
Change comment: There is no comment for this version

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3 -This page contains an overview of all P4P Networks in this wiki and their building blocks.
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5 -You can also [[add a P4P Network>>doc:Projects.WebHome]] or have a look at the [[P4P Applications>>doc:P4P.Applications.WebHome]].
3 +This page contains an overview of all P4P Networks in this wiki. You can also [[add a P4P Network>>doc:Projects.WebHome]] or have a look at the [[P4P Applications>>doc:P4P.Applications.WebHome]].
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13 -
14 -
15 -== Building Blocks of P4P Networks ==
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20 -Lost in translation? Take a look at the [[terminology>>doc:P4P.Definitions.WebHome]].
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23 -To fully assemble a P4P network one needs a few different building blocks. The following is an overview of the building blocks needed for P4P networks.
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25 -
26 -##### 9. **Data Synchronization**
27 -
28 -> Synchronization answers **how updates flow between peers** and how they determine what data to exchange. This layer is about **diffing, reconciliation, order, causality tracking, and efficient exchange**, not persistence or user-facing collaboration semantics.
29 -
30 -- _How do peers detect differences and synchronize state?_
31 -- Examples: Range-Based Set Reconciliation, RIBLT, Gossip-based sync, State-based vs op-based sync, Lamport/Vector/HLC clocks, Braid Protocol
32 -
33 -*Relevant links or documentation:*
34 -
35 -
36 -##### 10. **Collaborative Data Structures & Conflict Resolution**
37 -
38 -> This layer defines **how shared data evolves** when multiple peers edit concurrently. It focuses on **conflict-free merging, causality, and consistency of meaning**, not transport or storage. CRDTs ensure deterministic convergence, while event-sourced or stream-driven models maintain a history of all changes and derive consistent state from it.
39 -
40 -- _How do peers collaboratively change shared data and merge conflicts?_
41 -- Examples: CRDTs (Yjs, Automerge), OT, Event Sourcing, Stream Processing, Version Vectors, Peritext
42 -
43 -*Relevant links or documentation:*
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45 -
46 -##### 11. **Data Storage & Replication**
47 -
48 -> This layer focuses on **durability, consistency, and redundancy**. It handles write-paths, crash-resilience, and replication semantics across nodes. It is the “database/storage engine” layer where **data lives and survives over time**, independent of sync or merging logic.
49 -
50 -- _How is data persisted locally and replicated between peers?_
51 -- Examples: SQLite, IndexedDB, LMDB, Hypercore (append-only logs), WALs, Merkle-DAGs (IPFS/IPLD), Blob/media storage
52 -
53 -*Relevant links or documentation:*
54 -
55 -##### 12. **Peer & Content Discovery**
56 -
57 -> Discovery occurs in two phases:
58 -> 1. **Peer Discovery** → finding _any_ nodes
59 -> 2. **Topic Discovery** → finding _relevant_ nodes or resources
60 -> These mechanisms enable decentralized bootstrapping and interest-based overlays.
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62 -
63 -- _How do peers find each other, and how do they discover content in the network?_
64 -- Examples: DHTs (Kademlia, Pastry), mDNS, DNS-SD, Bluetooth scanning, QR bootstrapping, static peer lists, Interest-based routing, PubSub discovery (libp2p), Rendezvous protocols
65 -
66 -*Relevant links or documentation:*
67 -
68 -##### 13. **Identity & Trust**
69 -
70 -> Identity systems ensure reliable mapping between peers and cryptographic keys. They underpin authorization, federated trust, and secure overlays.
71 -
72 -- _How peers identify themselves, authenticate, and establish trustworthy relationships?_
73 -- Examples: PKI, Distributed Identities (DIDs), Web-of-Trust, TOFU (SSH-style), Verifiable Credentials (VCs), Peer key fingerprints (libp2p PeerIDs), Key transparency logs
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79 -
80 -== Distributed Network Types ==
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82 -
83 -[[Flowchart depicting distributed network variants, under development. Building on work from Z. Elfen, 2024: ~[~[https:~~~~/~~~~/doi.org/10.17613/naj7d-6g984~>~>https://doi.org/10.17613/naj7d-6g984~]~]>>image:P4P_Typology.png||alt="Flowchart depicting typologies of distributed networks, such as Friend-2-Friend, Grassroots Networks, Federated Networks, Local-First, P2P and P4P Networks" data-xwiki-image-style-alignment="center" height="649" width="639"]]
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85 -
86 -
87 -== Overview of P4P Networks ==
88 -
89 89  {{include reference="Projects.WebHome"/}}
P4P_Typology.png
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