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: 2369
Hash: 69b88840baea50505cfe98c0463b443d5a0d9b5556f982506de691ff5d20659f
Previous block: 6f06c22c2e766e2c91bd777679cda1fb33df0bd04f0d65e45cd91275e33bec4a
Next block: 664c3ce4bfbc2a19e95c6ac9c338585e1550ecbf45427775ed353f22caaa8a0b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847281
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 4d4ea728ae7d9edc9d7d415aacc322836d97e1c9ef126d53dbde388b4dca2133
Median time: 1743847281
Difficulty: 4.656542373906925e-10
Confirmations: 274
Chainwork: 0000000000000000000000000000000000000000000000000000000000001284
Bits: 207fffff