Pith Number

pith:2LFYGMSW

pith:2013:2LFYGMSWNQCX4PWRTB7MBCLTSZ

not attested not anchored not stored refs pending

One of the most massive stars in the Galaxy may have formed in isolation

A. Liermann, A. Sander, H. Todt, L. M. Oskinova, M. Steinke, W.-R. Hamann

arxiv:1309.7651 v2 · 2013-09-29 · 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{2LFYGMSWNQCX4PWRTB7MBCLTSZ}

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	2026-05-18T01:47:24.750615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2cb8332566c057e3ed1987ec089739669c05751beecc453b7a1e85c31f39e01

Aliases

arxiv: 1309.7651 · arxiv_version: 1309.7651v2 · doi: 10.48550/arxiv.1309.7651 · pith_short_12: 2LFYGMSWNQCX · pith_short_16: 2LFYGMSWNQCX4PWR · pith_short_8: 2LFYGMSW

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/2LFYGMSWNQCX4PWRTB7MBCLTSZ \
  | 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: d2cb8332566c057e3ed1987ec089739669c05751beecc453b7a1e85c31f39e01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "850b68ba0918e9158112fe48c01009681586d9b5a43029f7e3cb9f892911f0ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-09-29T19:53:44Z",
    "title_canon_sha256": "e2c6507058bfca9fe6ca2add2e8449d34fab0d124600144f1560aea8f854f274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7651",
    "kind": "arxiv",
    "version": 2
  }
}