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: 989
Hash: 6298ea0fdbcc4a491408fe645f28371b976885019053cb94034fb396f2c3c9c7
Previous block: 5abde1c5b3109c731352753921dfa32522f714fac6a2ee6c209faf36e8a28548
Next block: 34bba2fa80149ee4d8994341772644d5fc8f9bc1a472b4b68230a92d958a5029
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857833
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 308ba00f965f8e2c09af94d846cd48468ef02019d3a11d39baa6aa8c9d0f7e4c
Median time: 1707857832
Difficulty: 4.656542373906925e-10
Confirmations: 1255
Chainwork: 00000000000000000000000000000000000000000000000000000000000007bc
Bits: 207fffff