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IPFS: Difference between revisions
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IPFS ('''I'''nter'''P'''lanetary '''F'''ile '''S'''ystem) is a | IPFS ('''I'''nter'''P'''lanetary '''F'''ile '''S'''ystem) is a content-addressed distributed file system. IPFS is also a catch-all phrase for a variety of inter-related projects maintained by Protocol Labs. The goal of IPFS is to replace HTTP as the dominate hypermedia protocol on the internet. | ||
IPFS is a | === The IPFS Stack === | ||
* IPFS | |||
* Multiformats | |||
**Multihash - self-describing hashes | |||
**Multiaddr - self-describing network addresses | |||
**Multibase - self-describing base encodings | |||
**Multicodec - self-describing serialization | |||
**Multistream - self-describing stream network protocols | |||
**Multigram (WIP) - self-describing packet network protocols | |||
* IPLD - Abstract Data Model | |||
* libp2p - Networking and Peer Discovery | |||
* Filecoin - Incentive Layer | |||
"Hey pal, what are you pulling here, huh? Multi-what?" may be what you're saying. | |||
IPFS uses multihashes to address data. The hash addresses it's own hash algorithm. | |||
The first two digits of a multihash identify the hash algorithm. IPFS uses {{ic|SHA256}} which is represented as {{ic|Qm}}. The rest of a multihash is not simply the output of SHA-256. Try it yourself, it's not. | |||
There's a lot of chunking, hashing, and other magic going on behind the scenes. The end result is you get something that looks like this {{ic|QmRW3V9znzFW9M5FYbitSEvd5dQr}} which is a multihash. | |||
Multiformats, libp2p and IPLD are separate projects from IPFS that can be used independently of IPFS. | |||
== External links == | == External links == | ||
Revision as of 21:08, 22 February 2019
This dongle is a IPFS (InterPlanetary File System) is a content-addressed distributed file system. IPFS is also a catch-all phrase for a variety of inter-related projects maintained by Protocol Labs. The goal of IPFS is to replace HTTP as the dominate hypermedia protocol on the internet.
The IPFS Stack
- IPFS
- Multiformats
- Multihash - self-describing hashes
- Multiaddr - self-describing network addresses
- Multibase - self-describing base encodings
- Multicodec - self-describing serialization
- Multistream - self-describing stream network protocols
- Multigram (WIP) - self-describing packet network protocols
- IPLD - Abstract Data Model
- libp2p - Networking and Peer Discovery
- Filecoin - Incentive Layer
"Hey pal, what are you pulling here, huh? Multi-what?" may be what you're saying.
IPFS uses multihashes to address data. The hash addresses it's own hash algorithm.
The first two digits of a multihash identify the hash algorithm. IPFS uses SHA256 which is represented as Qm. The rest of a multihash is not simply the output of SHA-256. Try it yourself, it's not.
There's a lot of chunking, hashing, and other magic going on behind the scenes. The end result is you get something that looks like this QmRW3V9znzFW9M5FYbitSEvd5dQr which is a multihash.
Multiformats, libp2p and IPLD are separate projects from IPFS that can be used independently of IPFS.