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. mkrgsKuFE

Height: 1571
Hash: 2cbc5df5abdbf556d3dc728bc08924fbb91dcc40f798044a2a2d3732d7d594d0
Previous block: 74116d3098f48dc59d59f07a869124e3fd7256be849fc9c8cb11281d8307fcfd
Next block: 11b82c070ca46c5a4373bc938708f751d798b79940cb61252bc6f41f220335fe
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932131
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f076871a86efcee18fa152674f4171a75d3764a76d0785789b1792aef26ca3a5
Median time: 1708932130
Difficulty: 4.656542373906925e-10
Confirmations: 38
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c48
Bits: 207fffff