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: 1097
Hash: 0363a9b3baf4e255515bafc053f19e7ac19071fa614acc136d2d76e17a7418d6
Previous block: 330035cd515e5d2e97ef1972ac6f747846d46820d58b0d55434b6edd78e0bcbb
Next block: 762534804a6bc927f7cd6621dcb5fbdb92f1280ca22004875b7284d9ae0ac30e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857851
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 6aa81380c3bc7839c9431c3bcc8c253bf858ad213be340c88d2c3f6ceec8c0e6
Median time: 1707857850
Difficulty: 4.656542373906925e-10
Confirmations: 1147
Chainwork: 0000000000000000000000000000000000000000000000000000000000000894
Bits: 207fffff