Pith Number

pith:KSUD6JP3

pith:2004:KSUD6JP36QRBTECVM2ZCDPFHRR

not attested not anchored not stored refs pending

An astronomical search for evidence of new physics: Limits on gravity-induced birefringence from the magnetic white dwarf RE J0317-853

4) ((1) Max-Planck-Institut fuer Aeronomie, Germany), Germany (2) Department of Physics, Germany (4) Astronomisches Rechen-Institut, Heidelberg, Indiana, Institut fuer Astronomie und Astrophysik, Katlenburg-Lindau, Mark P. Haugan (2), Oliver Preuss (1), Purdue University, Sami K. Solanki (1), Stefan Jordan (3, USA (3) Universitaet Tuebingen

arxiv:gr-qc/0405068 v2 · 2004-05-13 · gr-qc · astro-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{KSUD6JP36QRBTECVM2ZCDPFHRR}

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	2026-07-04T16:47:44.380467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54a83f25fbf42219905566b221bca78c576f5e43c2f2a4726b57a35a4faaff8a

Aliases

arxiv: gr-qc/0405068 · arxiv_version: gr-qc/0405068v2 · doi: 10.48550/arxiv.gr-qc/0405068 · pith_short_12: KSUD6JP36QRB · pith_short_16: KSUD6JP36QRBTECV · pith_short_8: KSUD6JP3

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/KSUD6JP36QRBTECVM2ZCDPFHRR \
  | 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: 54a83f25fbf42219905566b221bca78c576f5e43c2f2a4726b57a35a4faaff8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bcf6812a00426f7e83a6da48a1818f39f40cb4f50b2920fd4d9b2908f5b2d08",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-05-13T09:28:51Z",
    "title_canon_sha256": "c89f2cc7a12bf6eb72391f4702cf8588e2d616285678e7b86e383d230f3fbfd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0405068",
    "kind": "arxiv",
    "version": 2
  }
}