Pith Number
pith:337EVC52
pith:2019:337EVC52ERJ6BDJ7K5RCO42HN6
not attested
not anchored
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refs pending
Measurement of the variation of electron-to-proton mass ratio using ultracold molecules produced from laser-cooled atoms
arxiv:1908.08722 v1 · 2019-08-23 · physics.atom-ph
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{337EVC52ERJ6BDJ7K5RCO42HN6}
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Record completeness
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Bitcoin timestamp
2
Internet Archive
3
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4
Citations
5
Replications
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Portable graph bundle live · download bundle · merged
state
The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same
current state with the deterministic merge algorithm.
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Receipt and verification
| First computed | 2026-07-04T23:59:23.623948Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
defe4a8bba2453e08d3f57622773476f92ea76f20fc0ff5df8aecdff5bc8a56b
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/337EVC52ERJ6BDJ7K5RCO42HN6 \
| jq -c '.canonical_record' \
| python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: defe4a8bba2453e08d3f57622773476f92ea76f20fc0ff5df8aecdff5bc8a56b
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "d0d438efa721a73098f24139b1f70a07c96275af698a5851f6520066527ba966",
"cross_cats_sorted": [],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "physics.atom-ph",
"submitted_at": "2019-08-23T09:05:47Z",
"title_canon_sha256": "30e575f8b53d5d3f64a5d94601ac973fb3438f4a1bf90935a32556d8763e28d2"
},
"schema_version": "1.0",
"source": {
"id": "1908.08722",
"kind": "arxiv",
"version": 1
}
}