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: 2264
Hash: 6448c136b4f6afc23b7937ebd51cb849b40a7edfc7c686b627a0ed45e7e16b3c
Previous block: 3bbeb4c35655cb6c9b4a60a9cac4f0dd05f1c9de23d4dd7f3f9873f9975d314b
Next block: 3b877669ed0c655e69eef120dbdf8332ad6aa1ea05e4969c79d49fc68949ff61
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847264
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: f02cea140357886b9c09844b37b0011bf460a005b39b9e0713fb2d8a3fc4d661
Median time: 1743847263
Difficulty: 4.656542373906925e-10
Confirmations: 379
Chainwork: 00000000000000000000000000000000000000000000000000000000000011b2
Bits: 207fffff