Pweet is a blockchain based microblogging service. Aka twitter but decentralized.

No coins are produced, and in order for a message to be accepted by a node. The message must first be solved by the user sending it. This is to prevent constant spamming and ensures that time was spent validating the message for the block. Each message must be signed with a signature using a Private Key. Each node validates individual messages, and thus there is no need to do any sort of mining. This allows for real time viewing.

Blocks can store up to 2MB of messages. Which roughly equates to 2K messages per block with an average message size of 1KB. For a block to be valid, all messages must be valid and the block hash must represent all message ids + the previous block hash + previous block id + the block id. Otherwise, the block is invalid and will not be accepted by other nodes.

Currently, the master blockchain is the longest available blockchain. Have a better idea? Let me know!

Well, do you want each message to be really large? Not really. By using just an url it helps keep the message around the 1KB mark, rather than 15KB+.

Plus, there are plenty of image hosting services in this day and age.

• Host a node
• Spread the word!
• Contribute via code additions and finding bugs etc.
• Feedback
• Testing

Be sure to edit config.js file to update the address field and local address / port etc.

Awesome! If you do let me know, so I can add it to the peers.json in this repository, or do a pull request. The address in the peers.json should be the address from your node's config.js.

The more nodes, the merrier!

No problem, just erase peers.json before booting up to prevent being part of the public node peers. Or, replace peers.json with your private node addresses only.

Go here: http://github.com/Metric/pweetsite

Go here: https://github.com/Metric/cuckoo-cycle

• Testing with actual multiple nodes (Let me know if you want to help with this!)