ConsensusSubmitMessage

Hedera protobuf reference for the ConsensusSubmitMessage transaction used to publish a message to an HCS topic and receive a consensus timestamp and order.

ConsensusMessageChunkInfo

Field	Type	Description
initialTransactionID	TransactionID	TransactionID of the first chunk, gets copied to every subsequent chunk in a fragmented message.
total	int32	The total number of chunks in the message.
number	int32	The sequence number (from 1 to total) of the current chunk in the message.

ConsensusSubmitMessageTransactionBody

Field	Type	Description
topicID	TopicID	Topic to submit message to.
message	bytes	Message to be submitted. Max size of a message is 1024 bytes (1 kb).
chunkInfo	ConsensusMessageChunkInfo	Optional information of the current chunk in a fragmented message.

🚨 NOTE: Max size of a transaction (including messages and signatures) is 6kb.