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: 1410
Hash: 247609b293ade96c8df3fc673d4dceafbc9d176fdb1d1b8cc9d1734983153421
Previous block: 3c0da308255ccfd05801e75c227537cb3345a798d16603a8b250de0aee59ccbd
Next block: 35925950bdafa3bc9c3ec45d1ea06ebf4e332e0bfafb1a7d68d58345880c7f10
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697642
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 37894188571f00dd96c1505f2521df7f56231a8765a745480efbfff011a3758d
Median time: 1718697642
Difficulty: 4.656542373906925e-10
Confirmations: 834
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b06
Bits: 207fffff