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. mupBAc74k

Height: 2289
Hash: 1c41183ef7968a0d217165624d337a08f5d417a779313dc14cd07a1539d54afe
Previous block: 2ccc595e035772c4a1e4db107d7ffa28f33128324c32c6800db6038d1cb02d93
Next block: 0d1da6185c85f164d482604945ede33d108712578f5cb57e28a842f08f4a37e7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480991
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 223296782c3c6d4c13c0c935da570c04016cc0c6b858a44a023251de10871c99
Median time: 1719480990
Difficulty: 4.656542373906925e-10
Confirmations: 3
Chainwork: 00000000000000000000000000000000000000000000000000000000000011e4
Bits: 207fffff