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: 1958
Hash: 6602d4f828ad80079095fb7206954ea8a3197bccb4254b8410552c93a575b428
Previous block: 0014609bc2cac0ae28b35496c4dc17c0289cc5f721981e13679ba4e12bd53cb6
Next block: 0bf35999a42490e25864cecdad8229744dbcd858a8864008e8b49468ac848172
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159250
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4a3678b55d4760f148fd9c6113804196ee9acbc49d8a60bf7ca8e1cffe48a763
Median time: 1719159249
Difficulty: 4.656542373906925e-10
Confirmations: 286
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f4e
Bits: 207fffff