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: 2035
Hash: 7cf6a102663843dfe8365304336db91b2328e05333662ed327c00b544c05cb9f
Previous block: 37b066bc9373002744fe5b920a37cc6759743b82c6ecd2dd7aaae9e3a66d1318
Next block: 00cc83160d53fbd7c00f5024755305641dcce95dd0714a741aac1610e6208eb5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964776
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 9ae5b90a65f5a1d820a83ff92a0a662c07854b7ce402f24e90e0d65ece64a94e
Median time: 1728964775
Difficulty: 4.656542373906925e-10
Confirmations: 209
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fe8
Bits: 207fffff