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: 365
Hash: 0fe8a9885463690307e91ca1d63d56e437c07612fed8cbed6156a5a70554a0f2
Previous block: 1d3fcea51e7c6c104c4faf68624733c2d646f2f36d9ca3dc221636fc2232b0b0
Next block: 19792bd4e1afb0dbfec20e96c60684d979ba036e62ec72fb220818f2c29b292b
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597928
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: 57576dbbb55b7ceedf3324e4de5c5638f95d0e825a0f4ee8698b534d56e08911
Median time: 1701597927
Difficulty: 4.656542373906925e-10
Confirmations: 1879
Chainwork: 00000000000000000000000000000000000000000000000000000000000002dc
Bits: 207fffff