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: 1884
Hash: 213a8aef2d40d3a2aa0abbea508796603bf49b6db38d9f1133fb8d195c402ef2
Previous block: 62b7cd2247f11ee4f7b990848552ed7f32c10b20ff339400d7d83f2dd381fc1e
Next block: 0d5da966eb908cfabb63f6f77ba1872242bab2fdd41562ae14101883e191691e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159237
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bc9d8b3af074ab7c7eb96acad164b73d1f3236948886ad2eb4c89bf316a9fed6
Median time: 1719159236
Difficulty: 4.656542373906925e-10
Confirmations: 360
Chainwork: 0000000000000000000000000000000000000000000000000000000000000eba
Bits: 207fffff