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: 1427
Hash: 3a11713ba53f51eb10397571cf8ee80d0299584cc107da38901c8540da9e6ae6
Previous block: 0eba2d7b1241f43c6422e202949eb42c237ffe4745e5412d15b7ae43f0e70501
Next block: 11e4446d5cbd1dcfea8850fef22132e94b4f05c20030325e150fc05c7dd50137
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697645
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 51a9271e609b2d7fbe49cf1f2083a38e55023dcbd5aff7ef32a445ede5417761
Median time: 1718697644
Difficulty: 4.656542373906925e-10
Confirmations: 817
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b28
Bits: 207fffff