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as seen in the following transaction reciept: https://www.etherchain.org/tx/0xf6769d28b35ac24e2e89b6cebc835c16c4e616bd6e2f96d0eea337c7bd02605f
what is the payload field and what is the use? how to put/get data in it? is there web3 function to manipulate that?
The payload you mentioned is the data field in a transaction. You can use it via web3. See here:
data: String - (optional) Either a byte string containing the associated data of the message, or in the case of a contract-creation transaction, the initialisation code.
