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: 1824
Hash: 3942f16db01cf483c52c25ebcb85fcb92f41c67190b0b65f1c998e64a92abeef
Previous block: 33d8c26a19312e96aa754a4e47308a3e0042a1f814f26d235ee22b0e29e2dea5
Next block: 612a3cb92d75dc7c28c00cc23b453418d75922d33d8bfc9353933f7f7b25d9b0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159227
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 8d81a4b8288fb12239c9c551a0d40a27f958a36d5cfb13a9d1229a6b7c2a9d59
Median time: 1719159226
Difficulty: 4.656542373906925e-10
Confirmations: 420
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e42
Bits: 207fffff