Pith Number

pith:UEH5H7RR

pith:2011:UEH5H7RREFDVKGUL7WAB6RMZCJ

not attested not anchored not stored refs pending

Discovery of a Wolf-Rayet Star Through Detection of its Photometric Variability

Colin Littlefield, Colin McClelland, G. H. Howie Marion, J. Craig Wheeler, Jozsef Vinko, Peter Garnavich, Terrence Rettig

arxiv:1111.3367 v1 · 2011-11-14 · 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{UEH5H7RREFDVKGUL7WAB6RMZCJ}

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	2026-05-18T01:59:33.492116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a10fd3fe312147551a8bfd801f4599125b74e2805b51caf0b88238c3e4711b69

Aliases

arxiv: 1111.3367 · arxiv_version: 1111.3367v1 · doi: 10.48550/arxiv.1111.3367 · pith_short_12: UEH5H7RREFDV · pith_short_16: UEH5H7RREFDVKGUL · pith_short_8: UEH5H7RR

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/UEH5H7RREFDVKGUL7WAB6RMZCJ \
  | 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: a10fd3fe312147551a8bfd801f4599125b74e2805b51caf0b88238c3e4711b69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15231cbe7da5a49d263a2522adfe7e2b2a17114678123732d235332b0996b9bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-14T21:00:06Z",
    "title_canon_sha256": "11b6003d58761252bc9e574a9c47472dd03aef7d894b6947111adfe67398c43f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3367",
    "kind": "arxiv",
    "version": 1
  }
}