Pith Number

pith:PK2SBBA3

pith:2012:PK2SBBA366I4UUXZCDVB5NAWUI

not attested not anchored not stored refs pending

The star formation efficiency in Stephan's Quintet intragroup regions

C. C. Popescu, C. K. Xu, G. Natale, J. Fischera, J. Sulentic, M. Dopita, M. Yun, N. Lu, P.-A. Duc, P. Appleton, R. J. Tuffs, U. Lisenfeld, W. Reach, Y. Gao

arxiv:1203.3436 v1 · 2012-03-15 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PK2SBBA366I4UUXZCDVB5NAWUI}

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	2026-05-18T04:00:01.676449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab520841bf791ca52f910ea1eb416a2160c369a8234662e941cbef5322eb92b

Aliases

arxiv: 1203.3436 · arxiv_version: 1203.3436v1 · doi: 10.48550/arxiv.1203.3436 · pith_short_12: PK2SBBA366I4 · pith_short_16: PK2SBBA366I4UUXZ · pith_short_8: PK2SBBA3

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/PK2SBBA366I4UUXZCDVB5NAWUI \
  | 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: 7ab520841bf791ca52f910ea1eb416a2160c369a8234662e941cbef5322eb92b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a74c448f97ae3a01a30053eeb07a20adda1b82ddca31454a6ce69e4d5237689d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-15T18:25:14Z",
    "title_canon_sha256": "dca4977e9a1f986906f59bae498849af852be170c9ede7353659eb1ce3e00ff1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3436",
    "kind": "arxiv",
    "version": 1
  }
}