Zcash Notes - Private, Permanent Notes on Zcash

Community Collaborations
1

Hi everyone,

I’d like to share a simple idea for a new project built on Zcash - Zcash Notes.

Zcash Notes is a lightweight app that lets you store private notes directly on the Zcash blockchain using the memo field in shielded transactions.

Each note is:

  • Encrypted

  • Stored on-chain

  • Permanent

  • Only readable by you (or intended recipient)

How It Works (Simple)

  1. You write a note in the app

  2. The app encrypts it

  3. The note is stored inside a Zcash memo field

  4. A shielded transaction is sent (usually to yourself)

  5. You can later scan and read your notes using your viewing key

Example Use Cases

  • Personal private journal

  • Secure idea storage

  • Timestamped proof of authorship

Is storing structured data in memos something we want to encourage?
Any concerns about chain bloat or misuse?
Best practices for chunking and encoding memo data?
Would this be better as a wallet feature vs standalone app?

3 Likes
2

No, especially as we move to out-of-band payments with Taychon

2 Likes
3

I understand the concern about memo usage but this kind of application could help bring non-technical users closer to Zcash by giving them a tangible reason to use shielded transactions beyond transfers.
So making privacy features feel useful, not abstract.

2 Likes