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: 1536
Hash: 3138625e9c787ac0544685ff7e840ce2bab8f0c9a15cfc029ad3fa325243afc2
Previous block: 314f8699bec87d70a6106994c6a874b71da6274f922112a05f14483050c68bc8
Next block: 046bd5259d64fd588a5a7ea0b4bb5b2d37624e094322267a6a9d21faf3ce89f5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697663
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a65951ca3472ec4709eccf7067d5d2544f70fc710eb729e4b2ab129aff9c2363
Median time: 1718697663
Difficulty: 4.656542373906925e-10
Confirmations: 708
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c02
Bits: 207fffff