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: 2370
Hash: 664c3ce4bfbc2a19e95c6ac9c338585e1550ecbf45427775ed353f22caaa8a0b
Previous block: 69b88840baea50505cfe98c0463b443d5a0d9b5556f982506de691ff5d20659f
Next block: 1eb55ef303d7928baca54cd83a1dc69db76069604a5a2f5e1e6a060707753d83
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847282
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 342a29f154f3edccadec2df3c399a9b52642be65d0699824968b74deb8ec0630
Median time: 1743847281
Difficulty: 4.656542373906925e-10
Confirmations: 273
Chainwork: 0000000000000000000000000000000000000000000000000000000000001286
Bits: 207fffff