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: 2347
Hash: 7cb9cc5a1bc524ea22c99a30a147bd029cea6799abf06fe808ab75707bd87e5a
Previous block: 40bf78516a7f2d5c6d3f97505754e9b34da72748329ca93327d58ce5f6f50953
Next block: 595c03afa5569c5fa081ae7b1d6612f94f52133f5d2b2895d9f1cf350da4fe9e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847278
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 774aef7c71efe822aa7a5c69369ef258b9e25c43a5609913fd2c516443855ad7
Median time: 1743847277
Difficulty: 4.656542373906925e-10
Confirmations: 296
Chainwork: 0000000000000000000000000000000000000000000000000000000000001258
Bits: 207fffff