Pith Number

pith:HF4W5OTE

pith:2011:HF4W5OTEQ2GHFJ64U3ZV753MUD

not attested not anchored not stored refs pending

CXOM31 J004253.1+411422: The first ultra-luminous X-ray transient in M 31

A. Kaur, A. Rau, D.H. Hartmann, F. Haberl, G. Sala, J. Greiner, M. Henze, M. Hernanz, W. Pietsch

arxiv:1109.1547 v2 · 2011-09-07 · 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{HF4W5OTEQ2GHFJ64U3ZV753MUD}

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	2026-05-18T02:00:38.244882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39796eba64868c72a7dca6f35ff76ca0cca399b4d17f6039bdd87b6bc796fe20

Aliases

arxiv: 1109.1547 · arxiv_version: 1109.1547v2 · doi: 10.48550/arxiv.1109.1547 · pith_short_12: HF4W5OTEQ2GH · pith_short_16: HF4W5OTEQ2GHFJ64 · pith_short_8: HF4W5OTE

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/HF4W5OTEQ2GHFJ64U3ZV753MUD \
  | 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: 39796eba64868c72a7dca6f35ff76ca0cca399b4d17f6039bdd87b6bc796fe20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46285e11576d2e18e23e421893525c2ffbc23477521a9e853977cbee08f38862",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-07T19:44:31Z",
    "title_canon_sha256": "57d4dcc604e253c96e0ab9b20d3fe2bec8c6ebfe0f924f4c2bf6648f4f1a96f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1547",
    "kind": "arxiv",
    "version": 2
  }
}