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: 2484
Hash: 6b94c47ed3a07ce9edc259f352f5b8dcde359bab98740d06feac7a45563281d0
Previous block: 3d115c0f69272778167f064eb7506e682d196881b86aaf64df785cbd766a1559
Next block: 54727fa567c1bd0440fff927d480e24f8d0287b6d309e944e1542ca0cc48cd27
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847301
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 678fce03ef3db1777ca7f44a8071df0746046a74f3967352094f32ea95933f98
Median time: 1743847300
Difficulty: 4.656542373906925e-10
Confirmations: 159
Chainwork: 000000000000000000000000000000000000000000000000000000000000136a
Bits: 207fffff