Hello IOTA Forum

What's address metadata hashes?

https://forum.helloiota.com/Topic8074.aspx

By lulalala - 9 Jan 2018

While reading about sweeping in the official documentation:

https://iota.readme.io/v1.2.0/docs/user-deposit-address-sweeping-to-internal-exchange-addresses#section-determine-the-correct-sweep-inputs

I see these initial variables:


  const addresses = [
   'ZRMBFCFLJSEIHYSXGDMOJOCORBWSSGJDJMVZGWUYGXTJYUJQELKOXNWOYBYTMYEIHP9PPPKWDEVOYJPZH',
   'TXPETAIGWJGETC9Y9FKKLHIBZHO9KQESOHZBKEQBEAKJJKDQCSD9CRPKSZIXIGTPMLBVYXLHNNDMZFTSH'
  ]
 
  // Address metadata
  // hashes represent any unresolved sweeps
  const metadata = [
   {security: 2, keyIndex: 1, user: 'Chris', hashes: []},
   {security: 3, keyIndex: 2, user: 'Dom', hashes: ['']}
  ]

But what are `hashes` actually? Do I obtain those from another API or do I compute it somehow? Why is one empty array while another one an array of empty string?