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: 660
Hash: 5058e46ce21d49966430ed0961d28041a8dfbc3072f2d64a72f1c11595d28186
Previous block: 3cdaa4e3a62ff1bee914d69c1ad82fb5d12f9bb8567263daf81a559cf039f194
Next block: 5dbbe2238d3ca9d8f8fb88dd13119e8ada7018eb5eeeb81dc545bb00a81a209a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864253
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e3af91ee521cdcdef6f0eea32f1af9e10e4fd0c166dfe8520f6f9c6f18c0d58b
Median time: 1701864253
Difficulty: 4.656542373906925e-10
Confirmations: 1584
Chainwork: 000000000000000000000000000000000000000000000000000000000000052a
Bits: 207fffff