Parsing

Parsing Announcements

This process is executed by the recipient to identify which transactions are intended for them.

Steps

1. Scan for Announcement Events

   • Each stealth transaction emits a tuple (E, StealthAddr, viewTag).

2. Compute Shared Secret

   • Multiply your viewing private key v by the ephemeral public key E to get P' = v × E.

   • Hash P' to derive h'.

   • Extract the candidate view tag from h'.

3. Compare View Tags

   • If the candidate tag does not match the announcement’s viewTag, ignore the transaction.

4. Derive Stealth Address

   • Compute R' = S + (h' × G) using the known spending public key S.

   • Verify that PubKey(R') matches the announced StealthAddr. A match confirms that the transaction is for you.