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: 480
Hash: 2b948f486a75e134989ce7a34af0472e0fb3634a2a93fb728d25f3365207b659
Previous block: 196ee2356240873f55c048fb8efd4aabc142d6840a1d52dd833773d9a8e4e46c
Next block: 47951ec6d497a97125bfdad68389ef666fa0777a985973df362e7317c377bd35
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864223
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: fea1c10b8b04cd7941062c07f01b129faa4e9812421dacb7a30f805b3428c2af
Median time: 1701864223
Difficulty: 4.656542373906925e-10
Confirmations: 1764
Chainwork: 00000000000000000000000000000000000000000000000000000000000003c2
Bits: 207fffff