> For the complete documentation index, see [llms.txt](https://docs.seismic.systems/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.seismic.systems/clients/python/src20/types/decrypted-transfer-log.md).

# DecryptedTransferLog

Frozen dataclass representing a decoded SRC20 Transfer event with decrypted amount.

## Solidity Event

```solidity
event Transfer(
    address indexed from,
    address indexed to,
    bytes32 indexed encryptKeyHash,
    bytes encryptedAmount
)
```

## Definition

```python
@dataclass(frozen=True)
class DecryptedTransferLog:
    from_address: ChecksumAddress
    to_address: ChecksumAddress
    encrypt_key_hash: bytes
    encrypted_amount: bytes
    decrypted_amount: int
    transaction_hash: HexBytes
    block_number: int
```

## Fields

| Field              | Type              | Description                        |
| ------------------ | ----------------- | ---------------------------------- |
| `from_address`     | `ChecksumAddress` | Sender address                     |
| `to_address`       | `ChecksumAddress` | Recipient address                  |
| `encrypt_key_hash` | `bytes`           | 32-byte `keccak256` of viewing key |
| `encrypted_amount` | `bytes`           | Raw AES-GCM ciphertext             |
| `decrypted_amount` | `int`             | Decrypted token amount             |
| `transaction_hash` | `HexBytes`        | Transaction hash                   |
| `block_number`     | `int`             | Block number                       |

## Example

```python
from seismic_web3.src20 import DecryptedTransferLog

def on_transfer(log: DecryptedTransferLog):
    print(f"Transfer from {log.from_address} to {log.to_address}: {log.decrypted_amount}")
    print(f"Block {log.block_number}, tx {log.transaction_hash.hex()}")
```

## See Also

* [DecryptedApprovalLog](/clients/python/src20/types/decrypted-approval-log.md) — Approval event data
* [Event Watching](/clients/python/src20/event-watching.md) — Watch and decrypt events


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.seismic.systems/clients/python/src20/types/decrypted-transfer-log.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.