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: 2366
Hash: 01566c106cb0cbff592567ac15b7c25b5beb89f615705f59243e75fdfc78c3b9
Previous block: 3976abab9ad0f504e5fe5b84207806ede4d107615271ce2e1a9ddbb6c34c09a0
Next block: 0936454c0d7471744d0ac62a46158ec57c4a73c5558270d7bc5d6e02980eeecb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847281
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d5a20ef3ee3fcc3eb2ceea2e94c6849a1de35e4aa4b9c18b889e2101197bb98f
Median time: 1743847280
Difficulty: 4.656542373906925e-10
Confirmations: 277
Chainwork: 000000000000000000000000000000000000000000000000000000000000127e
Bits: 207fffff