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: 2289
Hash: 747dc157b924a63ec7ca98ce08832abf19f985e7632eba97dc11dca7691c5378
Previous block: 0ca86f0c5bbab6701aa1780fd2fed97687faf052716154cfa964832f68042402
Next block: 635f81ae56126c82f5e5b848c3a48ab8f4c724cd6fed9a0d8a109f17507be691
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847268
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 9fd12b3cdced3b60681b46d2089f42328796ab6bed9f4744c23c83c9698840c0
Median time: 1743847267
Difficulty: 4.656542373906925e-10
Confirmations: 354
Chainwork: 00000000000000000000000000000000000000000000000000000000000011e4
Bits: 207fffff