New tools are available on XCP.pw

Broadcast a file’s MD5 hash. Useful when you work on an important project and want to timestamp / prove ownership.

Demo where you can submit many messages to a database. The DB is then anchored to the Bitcoin blockchain. Can be used as-is or as a starting point for a project.

Plenty of passphrase tools. Self-explanatory.

As a general rule, make a new passphrase for these tools only and deposit a small amount for testing.

The broadcast tools may work only after you save the html files and run them locally. I believe this is just a feature of jQuery / JavaScript, and I haven’t found a workaround. Any ideas?