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: 364
Hash: 1d3fcea51e7c6c104c4faf68624733c2d646f2f36d9ca3dc221636fc2232b0b0
Previous block: 6e85621f0ab926b9d90a0ed510becf3478273c1843d4dba6d29c722c2ac0d6cf
Next block: 0fe8a9885463690307e91ca1d63d56e437c07612fed8cbed6156a5a70554a0f2
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597928
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: d931320d00834533ea23c5ee8c3a512bf83246524d8dff93c1addc9c1ecc7cd3
Median time: 1701597927
Difficulty: 4.656542373906925e-10
Confirmations: 1880
Chainwork: 00000000000000000000000000000000000000000000000000000000000002da
Bits: 207fffff