The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1320
Hash: 70526cd5f3b2785c796c0bb8b7c88376122652f5eed57b3a10b6f020bc0afe7d
Previous block: 198d3166d56d833605649854a7d7f582c083198dde06451a0e97747e04c16de4
Next block: 01e90445ee0dceff128a8770f024f723385dbc4017635d7f7a7271df9437051d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697627
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: fecd583535b049cfad8df3a710eee299d599a602c163c1bf298b1be2f8c1c676
Median time: 1718697627
Difficulty: 4.656542373906925e-10
Confirmations: 924
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a52
Bits: 207fffff