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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1282
Hash: 41d8a09aa1ab92417559ec3c05e91f2c8aac7c82f23906131286c404cd91f3bc
Previous block: 3154dabe89a78f5d01dfece08031be15251ca7999f4fc9b573b2312ccd723a3e
Next block: 434c9a16c4798477450a39e7ca5b79429dd2d5acfc45c01bf93a3336340eed04
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697621
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 36d79a70b0627d24d8928f964ced6faf5ba34f91b8e5a2a461b1471e54a76ad0
Median time: 1718697620
Difficulty: 4.656542373906925e-10
Confirmations: 962
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a06
Bits: 207fffff