This is the first block in the Groestlcoin blockchain, known as the 'Genesis Block'. You can read more about the genesis block.
{
"hash": "000000ffbb50fc9898cdd36ec163e6ba23230164c0052a28876255b7dcf2cd36",
"confirmations": 3891424,
"height": 0,
"version": 3,
"versionHex": "00000003",
"merkleroot": "3ce968df58f9c8a752306c4b7264afab93149dbc578bd08a42c446caaa6628bb",
"time": 1440000002,
"mediantime": 1440000002,
"nonce": 6556309,
"bits": "1e00ffff",
"difficulty": 0.00390625,
"chainwork": "0000000000000000000000000000000000000000000000000000000001000100",
"nTx": 1,
"nextblockhash": "000000458242a5d60e943f0a9945c29040b32be35582d1bfd47b5c536f10ac30",
"strippedsize": 266,
"size": 266,
"weight": 1064,
"tx": "See 'Transaction IDs'",
"coinbaseTx": {
"hex": "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff3a04ffff001d0104325072657373757265206d75737420626520707574206f6e20566c6164696d697220507574696e206f766572204372696d6561ffffffff010000000000000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000",
"txid": "3ce968df58f9c8a752306c4b7264afab93149dbc578bd08a42c446caaa6628bb",
"hash": "3ce968df58f9c8a752306c4b7264afab93149dbc578bd08a42c446caaa6628bb",
"version": 1,
"size": 266,
"vsize": 266,
"weight": 740,
"locktime": 0,
"vin": [
{
"coinbase": "04ffff001d0104325072657373757265206d75737420626520707574206f6e20566c6164696d697220507574696e206f766572204372696d6561",
"sequence": 4294967295
}
],
"vout": [
{
"value": 0,
"n": 0,
"scriptPubKey": {
"asm": "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f OP_CHECKSIG",
"hex": "4104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac",
"reqSigs": 1,
"type": "pubkey"
}
}
],
"blockhash": "000000ffbb50fc9898cdd36ec163e6ba23230164c0052a28876255b7dcf2cd36",
"time": 1440000002,
"blocktime": 1440000002,
"confirmations": 3891423
},
"totalFees": "0",
"miner": null,
"subsidy": "0"
}[
"3ce968df58f9c8a752306c4b7264afab93149dbc578bd08a42c446caaa6628bb"
]{
"avgfee": 0,
"avgfeerate": 0,
"avgtxsize": 0,
"blockhash": "000000ffbb50fc9898cdd36ec163e6ba23230164c0052a28876255b7dcf2cd36",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 0,
"ins": 0,
"maxfee": 0,
"maxfeerate": 0,
"maxtxsize": 0,
"medianfee": 0,
"mediantime": 1440000002,
"mediantxsize": 0,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 0,
"outs": 1,
"subsidy": 0,
"swtotal_size": 0,
"swtotal_weight": 0,
"swtxs": 0,
"time": 1440000002,
"total_out": 0,
"total_size": 0,
"total_weight": 0,
"totalfee": 0,
"txs": 1,
"utxo_increase": 1,
"utxo_size_inc": 117
}