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: 1798
Hash: 3ec13257a837f337ea97c842ba34d70dea9843c567fc8a6a92283810fd711f59
Previous block: 033a2a742c0445900f4129b4669ae9dc94754853867e708783af49a6dc474c21
Next block: 205673bafcc0f952c028d4dc13aeeceb762f9408a2cdc7bd89f9607cab947b1c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159223
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5c0fce4558998d63618e5948f76cf25cc5709a70dd2b92031964f85b456b4dce
Median time: 1719159222
Difficulty: 4.656542373906925e-10
Confirmations: 446
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e0e
Bits: 207fffff