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: 2036
Hash: 00cc83160d53fbd7c00f5024755305641dcce95dd0714a741aac1610e6208eb5
Previous block: 7cf6a102663843dfe8365304336db91b2328e05333662ed327c00b544c05cb9f
Next block: 54c6f7b10bbf2754d4061b2aece89d23d46427ea09d97a76ee99f51af348fd6e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964776
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 71ba93f4a714241ea6bbc101e5a861b4a9f2ef49bb97891fa5557491c43e5891
Median time: 1728964775
Difficulty: 4.656542373906925e-10
Confirmations: 208
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fea
Bits: 207fffff