Pith Number

pith:7HG5EX4D

pith:2011:7HG5EX4DGONPI6B6RPJXLUTXCD

not attested not anchored not stored refs pending

In pursuit of gamma-ray burst progenitors: the identification of a sub-population of rotating Wolf-Rayet stars

G. Graefener (Armagh Observatory), Jorick S. Vink (Armagh Observatory), T. J. Harries (Exeter)

arxiv:1111.5806 v2 · 2011-11-24 · astro-ph.SR · astro-ph.CO · astro-ph.GA · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HG5EX4DGONPI6B6RPJXLUTXCD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:59:25.741176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9cdd25f83339af4783e8bd375d27710f7c0008a866260b75972165078fe143f

Aliases

arxiv: 1111.5806 · arxiv_version: 1111.5806v2 · doi: 10.48550/arxiv.1111.5806 · pith_short_12: 7HG5EX4DGONP · pith_short_16: 7HG5EX4DGONPI6B6 · pith_short_8: 7HG5EX4D

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/7HG5EX4DGONPI6B6RPJXLUTXCD \
  | 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: f9cdd25f83339af4783e8bd375d27710f7c0008a866260b75972165078fe143f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6120f0e88cda12a6a34d1120f76e369483aea0e01cf9aaeeac446e6a8a40ba6",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "astro-ph.HE",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-24T15:51:05Z",
    "title_canon_sha256": "da2674af22cfc922bfc9d736be91f8fbb15d01a2f53e2bfbf7c9eb1c37b69761"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.5806",
    "kind": "arxiv",
    "version": 2
  }
}