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: 2334
Hash: 2d8029c72c1de105d880c701ce39a65521523b670633b4cc3ff25f898f18c7cd
Previous block: 49addea57a321288303925e169a7f550570cefce59f481a475afcd06d81787a6
Next block: 2aabb1e38c6b7c55ceb6b37f30b40eb20378f0bcf37f8485f60be69fb756c0f2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847276
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 79ad12e11ce7cded2683d80c32bfd336c018f70ee89dd716c9883c3c5e7624fe
Median time: 1743847275
Difficulty: 4.656542373906925e-10
Confirmations: 309
Chainwork: 000000000000000000000000000000000000000000000000000000000000123e
Bits: 207fffff