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: 2350
Hash: 3f709f5434f069895c2ae929d7252e165169349db57648d018dcb1e818f0aabb
Previous block: 06db066755df11ecb4befcaa2d81f0e166a0f2a27d3b32f92ddb0f3c2fd5126f
Next block: 788234a4706b8bea46bf87365f658ae7a0a68d81a8f99a616deff10f138bede1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847278
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 98e9a53eb6d187da751f88721c1e5c749cb07c8a62e9c31de33b99bc31f57e50
Median time: 1743847277
Difficulty: 4.656542373906925e-10
Confirmations: 293
Chainwork: 000000000000000000000000000000000000000000000000000000000000125e
Bits: 207fffff