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: 1488
Hash: 0f83a14082391cd8eb2b574b693342e9078525312bb55b93ad63ccae6320864e
Previous block: 79f1ceea0aef5ccbd168ed718a1b46704374ce78e210e704ceab4c9811317e6d
Next block: 2226df4336e5e6c114221ca84a1d2e247a2fce9437696e599e7adeab88a8f0fa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697655
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 52f35e95d7ad6790852b7beaf09de0329de03ecc7c8b5efa5e2ea76769a6e1b2
Median time: 1718697655
Difficulty: 4.656542373906925e-10
Confirmations: 756
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ba2
Bits: 207fffff