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: 24
Hash: 0d34ce1d2a0b3917b62db79d9dd91f71ef43b4f24fe50c713f171006d5acf7cc
Previous block: 6c60adedf2e33cf5bfcff27164bd266db987972659c7e1d5c68caf6fb777f2a6
Next block: 6c39a9ac405465b8c03e1753cbd2b41f24d4fde51d26c6bf78f00fc2b944305e
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597871
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 732acc9e48b388a6cc8fe2027fa72134eff8a4974d7378da993d6216882ccd4d
Median time: 1701597870
Difficulty: 4.656542373906925e-10
Confirmations: 2220
Chainwork: 0000000000000000000000000000000000000000000000000000000000000032
Bits: 207fffff