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: 2315
Hash: 66c72682fcb73bb7174a862cadbb46dd9a19dd0ef0f524acb472f4e83218b4d7
Previous block: 7becf699d78fd0a2356853923335bf6ab75a7681d2cc0001e25b82b382a4d8eb
Next block: 08629a1ca70a15e599ffee10674ccc6f0b35417c4e5960f2e56544081e74552f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847272
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b7e4845abddd185886e03e3c322655e488d2cd55bc4b60ded5553451e95e4ea2
Median time: 1743847272
Difficulty: 4.656542373906925e-10
Confirmations: 328
Chainwork: 0000000000000000000000000000000000000000000000000000000000001218
Bits: 207fffff