Pith Number

pith:U5J3GIYB

pith:2011:U5J3GIYBXC72KAVEOWMKU3THAN

not attested not anchored not stored refs pending

Searching for the orbital period of the ultraluminous X-ray source NGC 1313 X-2

D. Impiombato, F. Gris\'e, L. Zampieri, R. Falomo, R. Soria

arxiv:1109.4437 v1 · 2011-09-20 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U5J3GIYBXC72KAVEOWMKU3THAN}

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	2026-05-18T02:00:27.429717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a753b32301b8bfa502a47598aa6e67037ebf23c783dc2b9295f5dfef15f0762c

Aliases

arxiv: 1109.4437 · arxiv_version: 1109.4437v1 · doi: 10.48550/arxiv.1109.4437 · pith_short_12: U5J3GIYBXC72 · pith_short_16: U5J3GIYBXC72KAVE · pith_short_8: U5J3GIYB

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/U5J3GIYBXC72KAVEOWMKU3THAN \
  | 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: a753b32301b8bfa502a47598aa6e67037ebf23c783dc2b9295f5dfef15f0762c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d956047ebef5a0d881f85b96ee6962411da5fa05193beec1c955fad9ae88d4ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-20T21:45:28Z",
    "title_canon_sha256": "f679bb36ab01e5d3d14d168392a12e4c38d762af68837ce7fc4b8b9511f1487f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4437",
    "kind": "arxiv",
    "version": 1
  }
}