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: 1533
Hash: 0a46c3a9a065d59fda05115f83517d62da918e03e8d0237c9f2fc9f517284a17
Previous block: 79f5512ae8d1ff0e70637a3209edb16cf05cca410132be3896897249b77a8a98
Next block: 32ae9fcc5f9e9b57bf178da22c0998ee90e7f41059ea0fc7cd1212c83ede1af1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697663
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: bc879fe647f1ff0d65bb90452d97fde6060e37a13508b981a33b16f2220ef933
Median time: 1718697662
Difficulty: 4.656542373906925e-10
Confirmations: 711
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bfc
Bits: 207fffff