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: 1511
Hash: 5997e478eaea49f17ed82b26624aa41fecb677b07444b959f7164b659448202c
Previous block: 0f2e0896e739783d17b12167d01d33cafa58c24cbb84981c5eb69b1558d4483f
Next block: 2f3d75d6ae3ab1e7154a262fddd9c93ed4cf335dc35ecfa212684abf369bcec1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697659
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 53780a2402f7e4a518a8fe6459b41352e39bcfa066c43548758a6970894d17b9
Median time: 1718697658
Difficulty: 4.656542373906925e-10
Confirmations: 733
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bd0
Bits: 207fffff