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: 1997
Hash: 74060852bd37adba5f92ba59835e95bf19c7eb15760e6d76ea96e20117b445e9
Previous block: 0ec6123b32a3e1df418504f5c5a108812809af88787b1a26e0912cd262fba9a7
Next block: 45f3ac733855db8077d21b1e511c8c210801be613f34d2096549f43bc6f1b1fa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159256
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 36ea8bffba165f3d6472df4f1abf012a277dfc209de6d10692f19a71ad4fe350
Median time: 1719159255
Difficulty: 4.656542373906925e-10
Confirmations: 247
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f9c
Bits: 207fffff