Pith Number

pith:RMMDVJ7E

pith:2018:RMMDVJ7EUOU5RYBFCHIDHFRSN3

not attested not anchored not stored refs pending

Constraining the magnetic field on white dwarf surfaces; Zeeman effects and fine structure constant variation

C. C. Lee, J. B. Holberg, J. C. Berengut, J. D. Barrow, J. Hu, J. K. Webb, M. A. Barstow, M. B. Bainbridge, N. Reindl, R.F. Carswell, S. P. Preval, T. R. Ayres, V. A. Dzuba, V. V. Flambaum, W.-\"U L. Tchang-Brillet

arxiv:1812.11480 v1 · 2018-12-30 · astro-ph.SR · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RMMDVJ7EUOU5RYBFCHIDHFRSN3}

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	2026-05-17T23:49:02.379792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b183aa7e4a3a9d8e02511d03396326edca84664f9c730ef74de6046791b22fc

Aliases

arxiv: 1812.11480 · arxiv_version: 1812.11480v1 · doi: 10.48550/arxiv.1812.11480 · pith_short_12: RMMDVJ7EUOU5 · pith_short_16: RMMDVJ7EUOU5RYBF · pith_short_8: RMMDVJ7E

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/RMMDVJ7EUOU5RYBFCHIDHFRSN3 \
  | 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: 8b183aa7e4a3a9d8e02511d03396326edca84664f9c730ef74de6046791b22fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71b9bb9d75808cf6621d4e0583428ccc0bb57cdbe6a1842218191c8dcdbc7576",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-12-30T07:06:48Z",
    "title_canon_sha256": "a5fe7442906fe5b8efecd91823d6b0b008d19f632379510b5b3c3da323ee8cc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11480",
    "kind": "arxiv",
    "version": 1
  }
}