# Block Prove Algorithm (BPA)

Block Prove Algorithm (BPA):

Check digital signature of block via EdDSA algorithm;

Check hash link to previous block;

If hash link points to local last block – proceed;

If hash link points to other block – stop Block Prove and start Block Merge;

If block with same number is already in local blockchain, stop Block Prove and start Block Merge;

If received block is new, check each transaction in block via TVA;

If TVA check is successful – add approver signature and distribute approved block.

Block needs to be approved by at least 2 approvers to become “mature”.

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