Pith Number

pith:A3VOJYY3

pith:2000:A3VOJYY3GWLKIDO5WAMYETTIOQ

not attested not anchored not stored refs pending

Gas motions in the plane of the spiral galaxy NGC 3631

2), (2) Sternberg Astronomical Institute, 3), (3) Troitsk Institute for Innovation, (4) Special Astrophysical Observatory, (5) Isaac Newton Group of Telescopes, 6) ((1) Institute of Astronomy of the Russian Academy of Science, (6) University of Hertfordshire), A.M.Fridman (1, A.N.Burlak(1, A.V.Moiseev(2), A.V.Zasov(2), E.V.Polyachenko (1), J.H.Knapen(5, O.K.Sil'chenko(2), O.V.Khoruzhii (1, S.N.Dodonov(4), Thermonuclear Researches, V.L.Afanasiev(4)

arxiv:astro-ph/0012116 v1 · 2000-12-05 · 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{A3VOJYY3GWLKIDO5WAMYETTIOQ}

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	2026-05-18T01:40:45.188682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06eae4e31b3596a40dddb019824e68740c6e14556273030e0c3acc985751eec5

Aliases

arxiv: astro-ph/0012116 · arxiv_version: astro-ph/0012116v1 · doi: 10.48550/arxiv.astro-ph/0012116 · pith_short_12: A3VOJYY3GWLK · pith_short_16: A3VOJYY3GWLKIDO5 · pith_short_8: A3VOJYY3

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/A3VOJYY3GWLKIDO5WAMYETTIOQ \
  | 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: 06eae4e31b3596a40dddb019824e68740c6e14556273030e0c3acc985751eec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89e06e2cfbcec3c66d5a51697b645e6b431905bacf545b72164fbcddcb07d0f6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-05T21:43:34Z",
    "title_canon_sha256": "3cff6cc9b37fc92604d2249d50ff7cf9bb32465825c693a9d5dae67b3e9f669b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012116",
    "kind": "arxiv",
    "version": 1
  }
}