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. mgqFp9Dhy

Height: 2208
Hash: 190474487495df984ac93d1a23d2cfad4adbacde498a530edd031f73d1dd02df
Previous block: 7673f3c27fb2044ef711af4a2dac17dcc7935310defbba8017db95393a94f435
Next block: 647b73226f7551a30198e9d9fe40b8d75021816c9b920ebc12e8f71f498bbd51
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964805
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5af3dff46007c3bbfc61db0ddfa6756fb65a8a9f1b52a500657cce9301bff7c4
Median time: 1728964804
Difficulty: 4.656542373906925e-10
Confirmations: 36
Chainwork: 0000000000000000000000000000000000000000000000000000000000001142
Bits: 207fffff