Pith Number

pith:2GQYBNVY

pith:2013:2GQYBNVYN3PDT6VETLXED33X7R

not attested not anchored not stored refs pending

RX J1301.9+2747: A Highly Variable Seyfert Galaxy with Extremely Soft X-ray Emission

Luming Sun (USTC), Tinggui Wang (USTC), Xinwen Shu (USTC)

arxiv:1304.3244 v1 · 2013-04-11 · astro-ph.GA · 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{2GQYBNVYN3PDT6VETLXED33X7R}

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	2026-05-18T01:50:34.006438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1a180b6b86ede39faa49aee41ef77fc7085bea6adcb5703b975ba7448bf8e3e

Aliases

arxiv: 1304.3244 · arxiv_version: 1304.3244v1 · doi: 10.48550/arxiv.1304.3244 · pith_short_12: 2GQYBNVYN3PD · pith_short_16: 2GQYBNVYN3PDT6VE · pith_short_8: 2GQYBNVY

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/2GQYBNVYN3PDT6VETLXED33X7R \
  | 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: d1a180b6b86ede39faa49aee41ef77fc7085bea6adcb5703b975ba7448bf8e3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "798af57e11c21b3d6b2b3b268abaa5cd6556123070e54385486c6c6949723361",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-04-11T10:05:26Z",
    "title_canon_sha256": "a36c25ea95be30abd3bc7de98ccdb93abb0db8195e87f2bba64e00dd912abdbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3244",
    "kind": "arxiv",
    "version": 1
  }
}