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Welcome to the Developer Q&A for the MultiChain blockchain platform.

Please feel free to ask questions about the platform to receive answers from the MultiChain developers or other members of the community.

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Limits on attachment size

+2 votes

What are the limits on attachment size?

transactions
block

asked Feb 24 by jjsull1van

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1 Answer

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For on-chain data (where the full data is in the blockchain), the maximum is 64 MB. For off-chain data (where only hashes are on the blockchain), the maximum is 1 GB. More information here:

https://www.multichain.com/qa/91506/limits-on-attachment-size

answered Feb 26 by MultiChain 1 flag

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