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: 814
Hash: 60ba255c2cc4a979e88f83da906462542c60276f8f38f332761e76cb25128d74
Previous block: 6ba1abeb85de7b0a1db139524855a2172efd581a0d3a52afa54f190bdb0dd79a
Next block: 7c93db3686f35af47a5806008912df35252a55b7efb71a1cf310282a0dc01348
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857804
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d70926d78f8558ef0aa6cd9b48475487d208bcf0610b1b2ad8d23b127e8c0e60
Median time: 1707857803
Difficulty: 4.656542373906925e-10
Confirmations: 1430
Chainwork: 000000000000000000000000000000000000000000000000000000000000065e
Bits: 207fffff