I am trying to save some data into a block. The extraData field has a constant value since block 1. Also where does the data parameter of sendTransaction() function get stored?
1 Answer
Please find reference in this answer here: What does each genesis.json parameter mean?
Excerpt here: "extraData An optional free, but max. 32-byte long space to conserve smart things for ethernity."
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Or, to paraphrase, you can put anything you want in the
extraData
field.– lungjJul 16, 2017 at 22:44 -
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