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Types of Blockchains

Across
Open to everyone without restriction.
Capable of handling growing amounts of work or transactions.
Requires approval to join the network.
No single point of control or failure
Once data is recorded, it cannot be altered.
Down
Restricted blockchain access, typically within an organization.
Able to operate with different blockchains or software.
Governed by a group of organizations, not just one.
Combines elements of both public and private blockchains.
Operates alongside a main blockchain to enhance scalability.