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: 1399
Hash: 0a3eafd7b283002c3bd2c9d386a3d3834d87fcbca85bb1e5c1514bf547b1a85f
Previous block: 22b52e00cdee39ede2552b138efde549700460cf9782824bcb6ac6be86fbc5ae
Next block: 227154cec7aaa83686c502ae8efc0f9ec22376f4637f08491c28addf376f2110
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697641
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c35e79b7674a9fa1c62ac6a6ce7b0c847a7ef308234250eef472721b93b24f28
Median time: 1718697640
Difficulty: 4.656542373906925e-10
Confirmations: 845
Chainwork: 0000000000000000000000000000000000000000000000000000000000000af0
Bits: 207fffff