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: 2014
Hash: 7dba66bc43f7bb54aed02c562f608db80f7002859f8dd83fe85f46e90af4f47d
Previous block: 2c97be13b55fca183c449e5190084e500f6e5c3cb1a1481927d108e451bebd35
Next block: 3c0a8a961e4ec9568b4d62c9a446e480e721d5e52bf0066676ce096226dd1be0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964772
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 505aa8cea8fbfd38ac3c5421df4a3f34f026ecce42039f61a58c4397a74d3787
Median time: 1719159258
Difficulty: 4.656542373906925e-10
Confirmations: 230
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fbe
Bits: 207fffff