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: 595
Hash: 44e7677ecbbc625310aa154965c1c40b0cdc5f145b586d087476de8ec8b615e0
Previous block: 129ba081056cb69644174d336dafd9ae14b65fa50807edabdff62b5b231ec2b9
Next block: 3d4f55e61eb2ce93f109e30f6ac42bb9dbf160723cb01330c67bc4a836aac58f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864243
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a7901a29d7840b7e292e3b758dfb4f51c4a1bb4d5811f53bf30d522e28023061
Median time: 1701864242
Difficulty: 4.656542373906925e-10
Confirmations: 1649
Chainwork: 00000000000000000000000000000000000000000000000000000000000004a8
Bits: 207fffff