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Block

This section covers block handling in Tessera, including import, production, and fork management.

Overview​

Blocks are the fundamental units of the JAM blockchain. This section documents:

  • Block Import: Receiving, validating, and incorporating blocks into the local chain
  • Block Production: Creating new blocks as a validator

Topics in this section​

1.1 Block Import​

Block import handles incoming blocks and validates them against the current state:

  • Block validation and verification
  • State transition execution
  • Fork detection and handling
  • GRANDPA finality integration

Implementation: tessera/jam/block/

1.2 Block Production​

Block production covers how validators create new blocks:

  • SAFROLE consensus participation
  • Cryptographic ticket generation
  • Block authoring and sealing
  • Coordination with finality

Implementation: tessera/jam/operations/

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