Pith Number

pith:QMGF74HO

pith:2000:QMGF74HOEOEN3QJDPOT5KXQFTK

not attested not anchored not stored refs pending

Near-infrared imaging polarimetry of the GG Tau circumbinary ring

Franccois Menard, Gaspard Duchene, Joel Silber, Tim Gledhill

arxiv:astro-ph/0005303 v1 · 2000-05-15 · 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{QMGF74HOEOEN3QJDPOT5KXQFTK}

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	2026-07-04T16:16:40.101757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

830c5ff0ee2388ddc1237ba7d55e059abe31ce3bccc9320c881879edcabc38ac

Aliases

arxiv: astro-ph/0005303 · arxiv_version: astro-ph/0005303v1 · doi: 10.48550/arxiv.astro-ph/0005303 · pith_short_12: QMGF74HOEOEN · pith_short_16: QMGF74HOEOEN3QJD · pith_short_8: QMGF74HO

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/QMGF74HOEOEN3QJDPOT5KXQFTK \
  | 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: 830c5ff0ee2388ddc1237ba7d55e059abe31ce3bccc9320c881879edcabc38ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5249837117d56688485fef018cc8f54f1775a75da39c544dfad2bd5d05bed76",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-05-15T08:44:48Z",
    "title_canon_sha256": "658526596c24b5d44e6c2b8062c4ae40f1d99378f2c20b5a5326a14bcd59f725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0005303",
    "kind": "arxiv",
    "version": 1
  }
}