Pith Number

pith:FKI6OFTV

pith:2018:FKI6OFTVQVRJOE2YY5MVWJHZSP

not attested not anchored not stored refs pending

Anomalous phosphine sensitivity coefficients as probes for a possible variation of the proton-to-electron mass ratio

Alec Owens, Sergei N. Yurchenko, Vladimir \v{S}pirko

arxiv:1808.05427 v1 · 2018-08-16 · astro-ph.CO · physics.atom-ph · physics.chem-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FKI6OFTVQVRJOE2YY5MVWJHZSP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ 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.

Receipt and verification

First computed	2026-05-18T00:07:57.054052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a91e716758562971358c7595b24f993fb74249a934cd2fe21483ae52b3286ca

Aliases

arxiv: 1808.05427 · arxiv_version: 1808.05427v1 · doi: 10.48550/arxiv.1808.05427 · pith_short_12: FKI6OFTVQVRJ · pith_short_16: FKI6OFTVQVRJOE2Y · pith_short_8: FKI6OFTV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FKI6OFTVQVRJOE2YY5MVWJHZSP \
  | 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: 2a91e716758562971358c7595b24f993fb74249a934cd2fe21483ae52b3286ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9db8f3dde3895a4e5742dc02e5e711b1363c22a01c75f8500eec90f3f7cbc1",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-08-16T11:40:04Z",
    "title_canon_sha256": "591c8242f68b22d83b3d127401dea21e5bb8eed1e08f4813a71e5d98749060fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05427",
    "kind": "arxiv",
    "version": 1
  }
}