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: 1332
Hash: 5420302966aff7920c8b660d9c6858aa49459163f4d6fe8a4f7c1d6df31460a8
Previous block: 2fdf20528fe09072aca43c8a066345f6f0eeb31c143efb15b24ae22f3be1a1f3
Next block: 070596178a646a718af339112b4dcde5849c0a8bf108f19e191d72fd0f8e85c2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697629
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: cf72171ed9042f96940152907c3ef325af9d07bdbf3fff764ae5d9e586d2d6fe
Median time: 1718697629
Difficulty: 4.656542373906925e-10
Confirmations: 912
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a6a
Bits: 207fffff