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: 1739
Hash: 3acf79a97b9093f7c20c73202494244e4678c1de4b51626f3584a8ffcf309f87
Previous block: 3c6fac7b4704c83a8e3bbda1bcbd999df037b306ff5475955cfac18a79febc95
Next block: 3a5dace4f284a77180c9fca75d725559cf8552052cf446bc76e613be9950fc4c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159213
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: b840266f921a999b4a1f01722744f2f2b8f63e83442fd0919b8473120d6ac4b8
Median time: 1719159212
Difficulty: 4.656542373906925e-10
Confirmations: 505
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d98
Bits: 207fffff