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: 1465
Hash: 65ea94298c7c4e9672d7d5033014e09c3d61365d5120ca317f181e4ae5571794
Previous block: 1323ccd0bf2141124d4fa0c3ae67bc71d958e4623f896cbfa7b265d5fb7a8afc
Next block: 0bcc47c92ff77bd0a43438c5e90fd76e2c387e84f29df713a93be241e9cdb19d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697652
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0877de4dba352cf9b9443648a26701b91f570cdcbf418cbc2c098817a76d05be
Median time: 1718697651
Difficulty: 4.656542373906925e-10
Confirmations: 779
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b74
Bits: 207fffff