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: 2335
Hash: 2aabb1e38c6b7c55ceb6b37f30b40eb20378f0bcf37f8485f60be69fb756c0f2
Previous block: 2d8029c72c1de105d880c701ce39a65521523b670633b4cc3ff25f898f18c7cd
Next block: 087af6e60adf02bf7f0193ffd3fb3917fa37b52ab9a3b7cb35b041e2159aec71
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847276
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4413627dfcf5f51f59b451807c192acbd8589249dd54e1da67886227e1110fe1
Median time: 1743847275
Difficulty: 4.656542373906925e-10
Confirmations: 308
Chainwork: 0000000000000000000000000000000000000000000000000000000000001240
Bits: 207fffff