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: 1846
Hash: 1cda0bd3e8328dd78bc3e68ba3ace076aae8eba85461876c3fc35eb542672736
Previous block: 457fcc3556e2349c11b8bae2b14827ca083da0a68cadded55cc5d918d27b9894
Next block: 4e94847f41fe2bdb77d963b322f127f16b5118045a323f6ca70d10cb97e802f7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159231
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 92a16e4edb89c6edd4d62f535bf7762bd8e531599dfc0c9934be7086f51db1c1
Median time: 1719159230
Difficulty: 4.656542373906925e-10
Confirmations: 398
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e6e
Bits: 207fffff