# CAD010: Transactions

> Pins down the signed transaction envelope — Ed25519 signature, origin address, strict incrementing sequence number — so replay attacks are structurally impossible and every state change has a cryptographically attributable author. The narrow interface is what lets clients from any language submit work into consensus.

**Category:** Convex Architecture Documents  
**Badge:** CAD  
**Page:** https://brittleboye.github.io/awesome-lattice/projects/cads/cad010-transactions/

## Links

- **Homepage:** https://docs.convex.world/docs/cad/010_transactions
- **Source:** https://github.com/Convex-Dev/design/tree/main/docs/cad/010_transactions

## Tags

`spec` `transactions` `signatures` `security` `cvm`

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