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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2624
Hash: 1a10e24702f2b6c97f7e9d503e5c5d8630fe3af645b25123b81a8c5756758f65
Previous block: 2aa82cb38da16b5d1f415490c44766522185d0f48f5dc8e40c40995b8b988812
Next block: 3d0266340748916fbfc99364b4ae8fe0489b78c33061492de69c76d1044dcc8d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847324
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0fc4726fc9ae7ac2c409afbd97957b3ea6fb4c45b1f544f388eb88dac2ec8855
Median time: 1743847323
Difficulty: 4.656542373906925e-10
Confirmations: 19
Chainwork: 0000000000000000000000000000000000000000000000000000000000001482
Bits: 207fffff