Pith Number

pith:6S3EU5DK

pith:2011:6S3EU5DKZKARWK7WUY3UNHISOC

not attested not anchored not stored refs pending

On the association of ULXs with young superclusters: M82 X-1 and a new candidate in NGC 7479

G. Nelemans, M. Fraser, M.T.B. Nielsen, R. Voss, S.J. Smartt

arxiv:1109.6336 v1 · 2011-09-28 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6S3EU5DKZKARWK7WUY3UNHISOC}

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	2026-05-18T02:00:21.862218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4b64a746aca811b2bf6a637469d1270a8ea890b9cca8e4bcb6559bb4e1a4281

Aliases

arxiv: 1109.6336 · arxiv_version: 1109.6336v1 · doi: 10.48550/arxiv.1109.6336 · pith_short_12: 6S3EU5DKZKAR · pith_short_16: 6S3EU5DKZKARWK7W · pith_short_8: 6S3EU5DK

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/6S3EU5DKZKARWK7WUY3UNHISOC \
  | 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: f4b64a746aca811b2bf6a637469d1270a8ea890b9cca8e4bcb6559bb4e1a4281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0379bf6783f42dce3b707ee8d4a68c737249a6b08bf4d7277db5df77e251fa52",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-28T20:07:05Z",
    "title_canon_sha256": "5bd7b28c55302d65dac0f0d78e13598ccb4351bddb17ec0b5f0d37229f37f1bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6336",
    "kind": "arxiv",
    "version": 1
  }
}