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Author Topic: BlockchainPen - an UI for writing messages to the blockchain  (Read 476 times)
makevoid
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November 11, 2015, 02:21:45 AM
 #1

Blockchain Pen is a UI (and clientside wallet) for writing messages to the blockchain

You can write to the blockchain using OP_RETURN to save important messages (from text messages to small json data, from love messages to link to tweets/posts/torrents/ipfs hashes ...)

Just add some millibits to the clientside wallet

Don't put much money in it - 2, 3 millibits at a time are more than ok

The private key is saved into localStorage, you can export the key via the link at the bottom

enjoy!

The code is open source, if you want to send a lot of messages or do heavy testing, please use testnet!

---

dev infos:

just add this to the code:
bitcore.Networks.defaultNetwork = bitcore.Networks.testnet

This project is open source:

https://github.com/makevoid/blockchain_pen_coffee

run it locally:
- download the zip from github
- run: python -m SimpleHTTPServer 3000
- open http://localhost:3000

link to r/bitcoin post: https://www.reddit.com/r/Bitcoin/comments/3scp4p/blockchain_pen_load_23_millibits_write_easily/


makevoid
github.com/makevoid
twitter: @makevoid
Each block is stacked on top of the previous one. Adding another block to the top makes all lower blocks more difficult to remove: there is more "weight" above each block. A transaction in a block 6 blocks deep (6 confirmations) will be very difficult to remove.
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November 11, 2015, 02:46:41 PM
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Nice basic, easy to use site: http://blockchain-pen.mkvd.net - I like it, good work


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