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: 2353
Hash: 0fa56507761ce97cd40d40602ee252bd286318634a41a2678754fc4c22bd16cb
Previous block: 09e935dc464de6cc911aaaa519f4816facad982a37ad6cc878282484ae507bd2
Next block: 51a9dd4d7b6d8f3ff42f6c4d901906dd6ca15a135deea81a3b3bde57c1208b90
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847279
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 89314daf3d38fcc6d09772e4f7fec4514b1d6c346752c6af768e90e95c1ffbcd
Median time: 1743847278
Difficulty: 4.656542373906925e-10
Confirmations: 290
Chainwork: 0000000000000000000000000000000000000000000000000000000000001264
Bits: 207fffff