The genesis coinbase transaction is embedded in the chain parameters and is not returned by the node as a standard transaction (by design, the same as Bitcoin). Its 50 BRVA reward is not part of the spendable supply.
Fair launch proof{
"hash": "c5a8d09048ea1957010a555490d9f3ea8b30d30f7432b1d84e5e068c666712d1",
"confirmations": 3852,
"height": 0,
"version": 1,
"versionHex": "00000001",
"merkleroot": "2568cf9e1033415283e52c8ef0f548958edf434f428496df25085a637033004b",
"time": 1783382400,
"mediantime": 1783382400,
"nonce": 25314,
"bits": "1e7fffff",
"target": "00007fffff000000000000000000000000000000000000000000000000000000",
"difficulty": 0.00003051711610163642,
"chainwork": "0000000000000000000000000000000000000000000000000000000000020000",
"nTx": 1,
"nextblockhash": "09957b6d97b92188c4566a561efdfb213cafcbe9c6eacb53e426aaccd3bedb7b",
"tx": "See 'Transaction IDs'",
"subsidy": "50"
}[]{
"avgfee": 0,
"avgfeerate": 0,
"avgtxsize": 0,
"blockhash": "c5a8d09048ea1957010a555490d9f3ea8b30d30f7432b1d84e5e068c666712d1",
"feerate_percentiles": [
0,
0,
0,
0,
0
],
"height": 0,
"ins": 0,
"maxfee": 0,
"maxfeerate": 0,
"maxtxsize": 0,
"medianfee": 0,
"mediantime": 1783382400,
"mediantxsize": 0,
"minfee": 0,
"minfeerate": 0,
"mintxsize": 0,
"outs": 1,
"subsidy": 0,
"swtotal_size": 0,
"swtotal_weight": 0,
"swtxs": 0,
"time": 1783382400,
"total_out": 0,
"total_size": 0,
"total_weight": 0,
"totalfee": 0,
"txs": 1,
"utxo_increase": 1,
"utxo_size_inc": 84,
"utxo_increase_actual": 0,
"utxo_size_inc_actual": 0
}