blockbaseopr

{
  "name": "blockheaders",
  "base": "",
  "fields": [
    {
      "name": "producer",
      "type": "string"
    },
    {
      "name": "block_hash",
      "type": "string"
    },
    {
      "name": "previous_block_hash",
      "type": "string"
    },
    {
      "name": "last_trx_sequence_number",
      "type": "uint64"
    },
    {
      "name": "sequence_number",
      "type": "uint64"
    },
    {
      "name": "timestamp",
      "type": "uint64"
    },
    {
      "name": "transactions_count",
      "type": "uint64"
    },
    {
      "name": "producer_signature",
      "type": "string"
    },
    {
      "name": "merkletree_root_hash",
      "type": "string"
    },
    {
      "name": "is_verified",
      "type": "bool"
    },
    {
      "name": "is_latest_block",
      "type": "bool"
    },
    {
      "name": "block_size_in_bytes",
      "type": "uint64"
    }
  ]
}