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: 1377
Hash: 1ac84a223b2d30a04dce1bf9e7fdbf55c5e117a5c1eb859c8754263d9d1d258b
Previous block: 5ef5777d6a18778e6d2956bdeefff94942ad8a8756adbcc5f40d0cc953213640
Next block: 6932a6aa60d0d8d1a1c3136ba67a53313c2861a965c55d332c6ff8bf0bc4dec8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697637
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0b248c428e307248531c2c75630cd6e59d47bca62a6d446b048245d144bb4007
Median time: 1718697636
Difficulty: 4.656542373906925e-10
Confirmations: 867
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ac4
Bits: 207fffff