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: 1509
Hash: 7458eaa2ba99b2eaf6db06351ce97fecf5a4e3904dfab5ab5b044d9f3b132be9
Previous block: 6e48306274bb50ec7d8e5fab0a6ff34c085e54d972c209649374170a87bc6196
Next block: 0f2e0896e739783d17b12167d01d33cafa58c24cbb84981c5eb69b1558d4483f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697659
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: bfe37c18ec8284f1680c2ef2d125be9c3a1c8239d81802edc8b11a72fe45499f
Median time: 1718697658
Difficulty: 4.656542373906925e-10
Confirmations: 735
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bcc
Bits: 207fffff