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: 585
Hash: 23dba67a3ed37d4f64b41d012758545605ee02c85ee72722040275aef53b4ce5
Previous block: 42d4206ba5ee63a129c1667d245eea5af7b9f81f535ab3739b3dfb02bfb1ff6e
Next block: 6033d275701ec40c356b8f154457de5b854d487e2b1bc6e6604e6ca064d91160
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864241
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 7bec04420bafd0af5e2fe2d717bb662cd899e7ec6588b393d1d5aaa336b3c5e9
Median time: 1701864240
Difficulty: 4.656542373906925e-10
Confirmations: 1659
Chainwork: 0000000000000000000000000000000000000000000000000000000000000494
Bits: 207fffff