New to forum, Ergo, and have questions about WP

In order to understand both answers, you need to have some idea of UTXOs.

A box is an acronym for UTXO in Ergo. So they are one and the same thing.

  1. If a box has remained unspent for 4 years or more, the miners can spend that box, removing a fraction of the Ergs and creating an identical box with the reduced Ergs. The difference is taken by miners as storage rent. The rationale behind this is explained in this paper and this post

  2. As explained earlier, a box is a UTXO, so each transaction spends (destroys) some boxes and creates new boxes

The hierarchy of data structures is:

  • A box contains up to 10 registers
  • A transaction contains many boxes
  • A block contains many transactions

User defined data is stored in the box (in one of the 10 registers)

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