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: 2553
Hash: 25abfea7f609e620d511e631bb26f618660f9a23e1723eb8f9167419683eca11
Previous block: 49a8049a7fec98118849b9896e6770887924cb6e93d3a131e5d2f1995eb58b3b
Next block: 734016b97504a58dc4890cb2e47dfaaca30f794c03092bfda83230024fe54696
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847312
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 7bc1d0ca82a603d1a249d2835d0da6d82e49097734d571800aa461e7cce99fce
Median time: 1743847311
Difficulty: 4.656542373906925e-10
Confirmations: 90
Chainwork: 00000000000000000000000000000000000000000000000000000000000013f4
Bits: 207fffff