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: 401
Hash: 0d5a85187736c60be5417d93adc169df3161fcff11b8b7eb05d6f223e691850f
Previous block: 5566db45c2a183c6451526be960255624f44ccfd24a0c155aef68f8c8e9f709b
Next block: 355eb591a74c6adb2bc187461765239a322c15d71aa2a50e4190901df633d3a8
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597934
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: b24bc3cdb00253bd830fe25b49fabae31fe767aff6837b21d2c3a4d08c96355c
Median time: 1701597933
Difficulty: 4.656542373906925e-10
Confirmations: 1843
Chainwork: 0000000000000000000000000000000000000000000000000000000000000324
Bits: 207fffff