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: 1740
Hash: 3a5dace4f284a77180c9fca75d725559cf8552052cf446bc76e613be9950fc4c
Previous block: 3acf79a97b9093f7c20c73202494244e4678c1de4b51626f3584a8ffcf309f87
Next block: 2886634f54c833ab08770e24615dd6054a171ceee1d8edc19017d0885fbaf057
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159213
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: d707356eb50080c4566762e7a5b1b2226ad845cdb5b516df804b5135d4220329
Median time: 1719159212
Difficulty: 4.656542373906925e-10
Confirmations: 504
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d9a
Bits: 207fffff