Pith Number

pith:4X5QVJEI

pith:2015:4X5QVJEI2DPUIGX2OCCGOS2NKG

not attested not anchored not stored refs pending

On the Formation of Ultraluminous X-ray Sources with Neutron Star Accretors: the Case of M82 X-2

Panos Sklias, Tassos Fragos, Tim Linden, Vicky Kalogera

arxiv:1501.02679 v2 · 2015-01-12 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4X5QVJEI2DPUIGX2OCCGOS2NKG}

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	2026-05-18T01:41:11.626270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5fb0aa488d0df441afa7084674b4d51b2995a106855abf9b44589ad35a5e455

Aliases

arxiv: 1501.02679 · arxiv_version: 1501.02679v2 · doi: 10.48550/arxiv.1501.02679 · pith_short_12: 4X5QVJEI2DPU · pith_short_16: 4X5QVJEI2DPUIGX2 · pith_short_8: 4X5QVJEI

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/4X5QVJEI2DPUIGX2OCCGOS2NKG \
  | 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: e5fb0aa488d0df441afa7084674b4d51b2995a106855abf9b44589ad35a5e455

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de64cba6253dff553ec9f7f02ba9041878c35f000ffebcd2dea71a032e30c34b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-01-12T15:30:21Z",
    "title_canon_sha256": "4bebaa0682eb3bebf3774de1c4aebff96c85a994db6c80775844f48147a83302"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02679",
    "kind": "arxiv",
    "version": 2
  }
}