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: 1959
Hash: 0bf35999a42490e25864cecdad8229744dbcd858a8864008e8b49468ac848172
Previous block: 6602d4f828ad80079095fb7206954ea8a3197bccb4254b8410552c93a575b428
Next block: 533b937ee0ce81f15d9b870de0a5c584e69564f43303bc2247a181357f964260
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159250
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 056d4bdf6465959e4ed5fcb57d1ee2aca9da3dc6336cc1790bdc6858770f0a44
Median time: 1719159249
Difficulty: 4.656542373906925e-10
Confirmations: 285
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f50
Bits: 207fffff