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: 1527
Hash: 487190204ec18c40ffdeabfb98ad15bd05b26c25825ec82d3d7a6079166e4183
Previous block: 50ccc388c787f5dbdac1f182ea0767469e8f6d8c79258ccdebb4fba91ada63bf
Next block: 2b849dc79097ee3a7b95874a4b434441634610e38c4f316f069a5a2c348b3801
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697662
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 31c06618141d2dc325a1444fec5da745616b47084a4bfb6dff4091f19f861359
Median time: 1718697661
Difficulty: 4.656542373906925e-10
Confirmations: 717
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bf0
Bits: 207fffff