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: 1425
Hash: 04b7d2a7bc70a95993be1e08ebe97aef5e62a0b107e91813a2f5ec0cbaa54d52
Previous block: 46da4d6e1d47897a3c9dbd35bb03bd5102adf800287d392a6b6dbe2ebc0c04de
Next block: 0eba2d7b1241f43c6422e202949eb42c237ffe4745e5412d15b7ae43f0e70501
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697645
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a642ac78598375e77abf93cafe4d31a5381781336d02d472b2596864a47c34f7
Median time: 1718697644
Difficulty: 4.656542373906925e-10
Confirmations: 819
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b24
Bits: 207fffff