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: 2032
Hash: 101e10c63f6df583d04bcbd4101e8ecaae75db686bbe2185d1c1fef853bb070b
Previous block: 3eb45098c9ae85cd2c87d3fb7b67aa77180d8ce9c6c1112eb0baa5dc16dc7ce0
Next block: 5e1e633f990e6a4b0809e7ec691e2f29e9f915951ec242a90d7e4af994f3ff94
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964775
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: de46f649673bbf4f5080f7051d11aa478d5e667bcf23d02f313886d2077538e7
Median time: 1728964774
Difficulty: 4.656542373906925e-10
Confirmations: 212
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fe2
Bits: 207fffff