Transactions & smart signatures
summary
Algorand transactions include concrete fields (sender, receiver, amount, fee 1000 microAlgos, first/last valid rounds) and tools for building them: goal CLI and the sandbox; smart signatures are stateless TEAL programs compiled to bytes hashed into an account address, runnable on the AVM and generatable via PyTEAL. Practical rules: minimum balance 0.1 ALGO, opt‑in for custom assets, atomic groups to execute several transactions all‑or‑nothing, and pitfalls like unchecked close‑remainder, rekeying risks, and clawback/manager authorities that can steal tokens.
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chapters (13)
- 0:00Start
- 2:37What Is a Smart Signature
- 3:34Summary
- 5:23How To Transfer Cryptocurrency from Yuser to another User
- 29:23Smart Signatures
- 31:30Smart Signature
- 41:08Temporal Constraints
- 1:05:47Anti-Spam Constraint
- 1:10:11Clawback Mechanism
- 1:11:49Asset Manager Address
- 1:13:18Atomic Groups
- 1:16:01Atomic Loops
- 1:17:54Leaking Operation
