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: 2625
Hash: 3d0266340748916fbfc99364b4ae8fe0489b78c33061492de69c76d1044dcc8d
Previous block: 1a10e24702f2b6c97f7e9d503e5c5d8630fe3af645b25123b81a8c5756758f65
Next block: 355c88929ce0025cfb399232b660deb77e11f42a42c1c86760fbdebf7d8fbadd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847324
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: ce258cf620797ad6da6ef20538f210ccdda046636031de4cebf841748f3d5c34
Median time: 1743847323
Difficulty: 4.656542373906925e-10
Confirmations: 18
Chainwork: 0000000000000000000000000000000000000000000000000000000000001484
Bits: 207fffff