Pith Number

pith:QX7LQTOG

pith:2013:QX7LQTOG4TJEAWZUSNFS72OSJU

not attested not anchored not stored refs pending

The second ULX transient in M31: Chandra, HST and XMM observations, and evidence for an extended corona

M. Garcia, R. Barnard, S. S. Murray

arxiv:1305.1302 v1 · 2013-05-06 · 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{QX7LQTOG4TJEAWZUSNFS72OSJU}

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.

Cited by

1 paper in Pith

Transient and Variable Ultra-luminous X-ray Sources in NGC 4552

Receipt and verification

First computed	2026-05-18T01:50:11.635482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85feb84dc6e4d2405b34934b2fe9d24d3817b81a3bef3b1f573313b9dc919343

Aliases

arxiv: 1305.1302 · arxiv_version: 1305.1302v1 · doi: 10.48550/arxiv.1305.1302 · pith_short_12: QX7LQTOG4TJE · pith_short_16: QX7LQTOG4TJEAWZU · pith_short_8: QX7LQTOG

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/QX7LQTOG4TJEAWZUSNFS72OSJU \
  | 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: 85feb84dc6e4d2405b34934b2fe9d24d3817b81a3bef3b1f573313b9dc919343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4504e263d6cfc17e77d392fad5f43e954b28701b8529a55e58d5b5507229ad11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-06T20:00:05Z",
    "title_canon_sha256": "52be7412c2e0d193d8a8aeeff61264524e467c931dc7aa5d0c685353e79a346c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1302",
    "kind": "arxiv",
    "version": 1
  }
}