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: 1575
Hash: 1ecc050942780cd5e435298d709b69ae6f2054666ed8800a0d133e54434959da
Previous block: 58d418ef6bb3c7e6e19c3413c83c0adf98d173337949ce41ed40c964d1b052e2
Next block: 1cef757d36584801c52b0f109970c19bbc250ff512033360bbf7ddaf8626cd42
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932132
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 2db626b5fccc4aed364b2d74443c6eaca8d5565b2c949544e553af1c25e20a76
Median time: 1708932131
Difficulty: 4.656542373906925e-10
Confirmations: 34
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c50
Bits: 207fffff