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: 2351
Hash: 788234a4706b8bea46bf87365f658ae7a0a68d81a8f99a616deff10f138bede1
Previous block: 3f709f5434f069895c2ae929d7252e165169349db57648d018dcb1e818f0aabb
Next block: 09e935dc464de6cc911aaaa519f4816facad982a37ad6cc878282484ae507bd2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847278
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: de31ca2c79d67e277ba272e3efd6990c47af93d181bdcb7c9b7308f9011ec2f2
Median time: 1743847278
Difficulty: 4.656542373906925e-10
Confirmations: 292
Chainwork: 0000000000000000000000000000000000000000000000000000000000001260
Bits: 207fffff