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: 860
Hash: 7a53b353934e1edc54c333a2c00199cc7255831fdf844da37604a7c390b5c679
Previous block: 3730fdef1a65391796474ea78f82456d36341dcb4172fdb9a5ee47fe28ae0c8e
Next block: 57a0fb391da9aa6fd50ed9aae6029aa9213c47c9b00345bb99369357addafb11
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857812
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 1ff46e1af43e2d3a843c9abc0639beab4ff413d4742c08e941349bac992a2633
Median time: 1707857811
Difficulty: 4.656542373906925e-10
Confirmations: 1384
Chainwork: 00000000000000000000000000000000000000000000000000000000000006ba
Bits: 207fffff