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: 1409
Hash: 3c0da308255ccfd05801e75c227537cb3345a798d16603a8b250de0aee59ccbd
Previous block: 3154ad49509a7bed6ce8eca309c4b6c55fd44b7b99596acd6dc97c377d75f3d9
Next block: 247609b293ade96c8df3fc673d4dceafbc9d176fdb1d1b8cc9d1734983153421
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697642
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c30b833ceb02c325c18d60e032f036851b4940e5f926145b9ee178c6c3b39ebd
Median time: 1718697641
Difficulty: 4.656542373906925e-10
Confirmations: 835
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b04
Bits: 207fffff