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: 1742
Hash: 56f71377afcc6c180526d9066b83ac6e841c11b90d4a7c9f1173cf235d9e2300
Previous block: 2886634f54c833ab08770e24615dd6054a171ceee1d8edc19017d0885fbaf057
Next block: 78a357e6b98d84ee9d4d49cc4a1f5906c16062b85f79a64b7a0ed9548c23d86c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159214
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 01e1d1b51a73f83f81f9e4d457cb04263338e2bee2e1b3be245414be73659d59
Median time: 1719159213
Difficulty: 4.656542373906925e-10
Confirmations: 502
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d9e
Bits: 207fffff