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: 1267
Hash: 50278ccad8de2b814902d2503bcec32262c6f349dec4278ca50690900690bdba
Previous block: 6f6aae61cd0bd3b1ea500e8295e9722e7a6aede80453446aee76421af6152282
Next block: 7abe6fa0e2d2f65eccf272c9263ff2584d44de94a6add6a99484092749fc7481
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697619
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 9fb265038d41d14fd2ba734a966390b774eb51591efdb25f26da2ad8d6b569fc
Median time: 1718697618
Difficulty: 4.656542373906925e-10
Confirmations: 977
Chainwork: 00000000000000000000000000000000000000000000000000000000000009e8
Bits: 207fffff