Pith Number

pith:7OIGJUBD

pith:2013:7OIGJUBDYY2QWYE3WYUJ33EQIX

not attested not anchored not stored refs pending

Super-Eddington Accretion in the Ultraluminous X-ray Source NGC1313 X-2: An Ephemeral Feast

Hai-Hui Zhao, Shan-Shan Weng, Shuang-Nan Zhang

arxiv:1311.5030 v2 · 2013-11-20 · astro-ph.HE · 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{7OIGJUBDYY2QWYE3WYUJ33EQIX}

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	2026-05-18T01:26:11.082992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb9064d023c6350b609bb6289dec9045f31272443e2c20fa0bd77ec3c453b964

Aliases

arxiv: 1311.5030 · arxiv_version: 1311.5030v2 · doi: 10.48550/arxiv.1311.5030 · pith_short_12: 7OIGJUBDYY2Q · pith_short_16: 7OIGJUBDYY2QWYE3 · pith_short_8: 7OIGJUBD

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/7OIGJUBDYY2QWYE3WYUJ33EQIX \
  | 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: fb9064d023c6350b609bb6289dec9045f31272443e2c20fa0bd77ec3c453b964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e41a577535f144e72ce40f600480d0653fddb005f69fb9ce7471f68f8c65586",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-11-20T12:14:02Z",
    "title_canon_sha256": "b82ce7a161fef4bcd84c7b136cf9e573fdae7ba6d9fa6062a24e8f7a9a0e75c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5030",
    "kind": "arxiv",
    "version": 2
  }
}