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. mkrgsKuFE

Height: 1596
Hash: 7daba2d416a0d31c0a6243e471ffb76a0bbd0850b7d78fe5eed74d879e46176a
Previous block: 1cb50b952702889b7938e57864a0ed65a624e07d2fe5048a7343a00c0839d997
Next block: 03733eab65e907bbdcce5237214dfd90443d43107c11fb0fbf65b213d15e9fb4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932135
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 96a6d4cbd9e08d4a9d8bb824a94a386f510c369697b97205ecd32ad90c502277
Median time: 1708932135
Difficulty: 4.656542373906925e-10
Confirmations: 13
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c7a
Bits: 207fffff