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.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1229
Hash: 106cc27234ec1e0d6aff1e367d8c065c607bc2c95904a703f36ac4da628d0ce5
Previous block: 0a907c92eaced6583fd73dad7267c6acba32062af4616be341c17db1f1251aa2
Next block: 4574e6bebb9a2bb4e31dded9fa73aab1432f202f976870441825f3af83db95f3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697612
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: cb4d5f37afa93c6d0053d4c5344db18dcf3e3bd017a0420fe161915d0397ffb9
Median time: 1718697611
Difficulty: 4.656542373906925e-10
Confirmations: 1015
Chainwork: 000000000000000000000000000000000000000000000000000000000000099c
Bits: 207fffff