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ipfs-some-graph.txt
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IPFS(Hypermedia transport protocol：超媒体传输协议) - IPFS是程序里用链接移动数据的算法。
.__________________________________________________________________________________________________________________________.
| |
| The IPFS Stack |
| |
| |
| .————————————————. |
| | |\ |
| | | \ |
| Web | applications | )-----------------------▶ Using the Data |
| | | / |
| |________________|/ |
| SFS | |\ |
| | naming | \ |
| | | \ |
| git |________________| \ IPNS |
| | | )---------------------▶ Defining the Data |
| | | / IPLD |
| BitTorrent | merkledag | / |
| | | / |
| |________________|/ |
| DHT | |\ |
| | exchange | \ |
| |________________| \ |
| | | \ libp2p |
| | routing | )---------------------▶ Moving the Data |
| |________________| / |
| | | / |
| | network | / |
| |________________|/ |
| |
| |
|__________________________________________________________________________________________________________________________|
.__________________________________________________________________________________________________________________________.
| |
| .__________. ._______. ._______. ._________. .________. |
| | | | | | | | | | | |
| applications | Etherpad | | VLC | | Git | | Bitcoin | | Chat | |
| |__________| |_______| |_______| |_________| |________| |
| |
| |
| ._______. |
| | | |
| naming | IPNS | |
| |_______| |
| |
| |
| ._____________. |
| | | |
| | merkledag | |
| |_____________| |
| |
| |
| .___________. |
| | | |
| exchange | Bitswap | |
| |___________| |
| |
| |
| .___________. .__________. |
| | | | | |
| routing | Kad DHT | | mDNS | |
| |___________| |__________| |
| |
| |
| ._________. ._______. ._______. .________. .________. .________. ._____________. |
| | | | | | | | | | | | | | | |
| network | CJDNS | | UDT | | uTP | | WebRTC | | QUIC | | TCP | | WebSocket | |
| |_________| |_______| |_______| |________| |________| |________| |_____________| |
| |
|__________________________________________________________________________________________________________________________|
The merkel link is that you link things together with a cryptographic hash, so you use the content itself to determine the link.
.__________________________________________________________________________________________________________________________.
| |
| The Merkel Tree |
| |
| .____________. |
| | | |
| | Top Hash | |
| ◥|____________| ◤ |
| / \ |
| / \ |
| .——————————. .——————————. |
| | | | | |
| | Hash 0 | | Hash 1 | |
| |__________| |__________| |
| ▲ ▲ ▲ ▲ |
| | | | | |
| | | | | |
| .________. .________. .________. .________. |
| | | | | | | | | |
| | Hash | | Hash | | Hash | | Hash | |
| | 0-0 | | 0-1 | | 1-0 | | 1-1 | |
| |________| |________| |________| |________| |
| ▲ ▲ ▲ ▲ |
| | | | | |
| | | | | |
| .________. .________. .________. .________. |
| | | | | | | | | |
| | Data | | Data | | Data | | Data | |
| | block | | block | | block | | block | |
| | 000 | | 001 | | 002 | | 003 | |
| |________| |________| |________| |________| |
| |
| |
|__________________________________________________________________________________________________________________________|
.__________________________________________________________________________________________________________________________.
| |
| The Merkel DAG |
| |
| |
| 1 ◄--- root |
| ▲ / \ |
| | / \ |
| 2 ◄---√ ) |
| | |
| ▼ |
| 3 ----▶ 4 |
| |
| |
| in IPFS, data from a dag. it's called the merkel dag, because the links are hashes. |
|__________________________________________________________________________________________________________________________|
sign with private key
content --------------------------> hash --------------------------> pointer ------------------------------------------> 发布
signing means somebody can verify
So, you add content to IPFS then share the hash, or you sign the hash and then share your key.