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: 1659
Hash: 6a1808b469947dda1fcd1ec799c7148a7056f2a9b69665cacd314eea57d028f2
Previous block: 62d4391e784e5080dc81694dbadf2685414e1a1050746a3d29d1b3b22f9ec34a
Next block: 2e6c77549c39405b9f4a028af5ba50f407695cde10a739565577c4ce64c5afe4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159200
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: dffcc04fe1213f512ebf74a5ce6d666cf53616ca6ed9511535622dc40c6f7b2c
Median time: 1719159199
Difficulty: 4.656542373906925e-10
Confirmations: 585
Chainwork: 0000000000000000000000000000000000000000000000000000000000000cf8
Bits: 207fffff