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: 1799
Hash: 205673bafcc0f952c028d4dc13aeeceb762f9408a2cdc7bd89f9607cab947b1c
Previous block: 3ec13257a837f337ea97c842ba34d70dea9843c567fc8a6a92283810fd711f59
Next block: 5de15ef3facb3244d87191db06b905554b83a0074d7a6aa1f88595e603a1f463
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159223
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: 18a83ecb29f2ec795e1656b7e542ebfb02856daf68be77432fe978ae206dad90
Median time: 1719159222
Difficulty: 4.656542373906925e-10
Confirmations: 445
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e10
Bits: 207fffff