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: 1203
Hash: 7da5ee6c9d2179cbf30a2004dbcd5a7e6f5310264d9ae2511e302f06250fd604
Previous block: 5b7107c05b488ce8f7567ee1c00b9b519cd4709b9da48b71ae2d64c4b0bdceb9
Next block: 5115216ef6e04599e8d9583f5834ee5d03671c71db855341fe31e1dd11b8e233
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857869
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 7d7d478202d04acb567e24831627a3cac889c2312bf3e30347dacff3bc653921
Median time: 1707857868
Difficulty: 4.656542373906925e-10
Confirmations: 1041
Chainwork: 0000000000000000000000000000000000000000000000000000000000000968
Bits: 207fffff