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: 464
Hash: 039024bef28601600065ee71bdebff3d602904ca5e6419d7739f4622759ca92b
Previous block: 17e548533a9ce1a60645cdfb1f3c48f4c3e0c80a215dff2826973ad298469efb
Next block: 69687ba47cb4445eac7aec0f4e678a2552bcb4aff94b85c9528f01fcef1eba7e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864221
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ce6d759bdc788f82e56ee2026797383d597d3182ed2b01d88e5eaeabf331dc56
Median time: 1701864220
Difficulty: 4.656542373906925e-10
Confirmations: 1780
Chainwork: 00000000000000000000000000000000000000000000000000000000000003a2
Bits: 207fffff