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: 358
Hash: 71dcdc8a46cf7a1c6398a87e791424102f8fae27e4c74f4a4f5091b9d1498a2c
Previous block: 2729d1e5120177975ff755c27470750c312fc25d59775542d4128bbae820d7cd
Next block: 0516f63c3fc5a7d64f244b050da9468c3cd312a6c0062bc81c709c37dc0c1766
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597927
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: eaa982cc946a50912e82bb73a34e17f2e3339163ee482e95fd30aec2add45753
Median time: 1701597926
Difficulty: 4.656542373906925e-10
Confirmations: 1886
Chainwork: 00000000000000000000000000000000000000000000000000000000000002ce
Bits: 207fffff