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: 2371
Hash: 1eb55ef303d7928baca54cd83a1dc69db76069604a5a2f5e1e6a060707753d83
Previous block: 664c3ce4bfbc2a19e95c6ac9c338585e1550ecbf45427775ed353f22caaa8a0b
Next block: 6790f50c8fbc4f1c14729f4ef150dcb88b37d22443b98183c8ba941a222b8170
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847282
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 75e60853d1daf7bebb3c02299f0f82fbb160dd4b0ded8e00a9e791b09e0a11c1
Median time: 1743847281
Difficulty: 4.656542373906925e-10
Confirmations: 272
Chainwork: 0000000000000000000000000000000000000000000000000000000000001288
Bits: 207fffff