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: 877
Hash: 7a22a8aa57c142be007d1c86a83b7097c8105a06f8797a2710203263c0e950df
Previous block: 2f4386e1876dfe951ee60bed7411000c1bba7bb64f11c888424bf77fd949296c
Next block: 417339ebb696c6b8a37d93d674aeb0af72dc47807cb076c9eecdf75a8020d4c9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857815
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ff6b32ec9e72d11893d6df1a36334e09a40b23778d994d01db6bc47baa7878df
Median time: 1707857814
Difficulty: 4.656542373906925e-10
Confirmations: 1367
Chainwork: 00000000000000000000000000000000000000000000000000000000000006dc
Bits: 207fffff