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: 1829
Hash: 52f85b508d44f4a674af641adaa553ad4f878a3c3d54c7cd6daf56c019bff3e0
Previous block: 4abcc73583f2fd812c63e4b84f60d150bc694a9b8e3a683dcb614e26462d0729
Next block: 2a634283a7e76c898f31a86c2cb715cbb81d990ce35e102956fd2acfdc0b7b5f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159228
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 3d653cb42823686ebc23da33c8e97526b825b9e1a19e066140bbab4041f3914a
Median time: 1719159227
Difficulty: 4.656542373906925e-10
Confirmations: 415
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e4c
Bits: 207fffff