{
"id": "proton-mass",
"label": "Proton mass",
"symbol": "m_p",
"quantity": {
"value": 1.67262192369e-27,
"unit": "kg",
"uncertainty": 5.1e-37,
"asOf": "2018-06-01",
"source": {
"name": "CODATA",
"url": "https://physics.nist.gov/cuu/Constants/"
}
},
"sameAs": [
"https://www.wikidata.org/entity/Q184310"
],
"tags": [
"physics",
"particle",
"mass"
]
}