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: 1308
Hash: 789762b2308b3de2a9750cd7e124d5778e8ecedb45748b2b0bc061d8d7ab46a4
Previous block: 6a0921bf068d6b12250808a6abdca88979135283d4387b9377b99cc075417705
Next block: 66a05660030bad1196f645766f278830e5693c0019c5eabd5ba446248c95a218
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697625
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bd8480d5e74acdf5929b4b428bb94605e37565a94ca9b550fb3e6f693712eaf8
Median time: 1718697625
Difficulty: 4.656542373906925e-10
Confirmations: 936
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a3a
Bits: 207fffff