Pith Number

pith:WO7YXDJX

pith:2014:WO7YXDJXL7QOL2IOJC5U7CLR4Q

not attested not anchored not stored refs pending

Eta Carinae's 2014.6 Spectroscopic Event: The Extraordinary He II and N II Features

Andrea Mehner, John C. Martin, Kazunori Ishibashi, Kris Davidson, Roberta Humphreys

arxiv:1411.0695 v2 · 2014-11-03 · 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{WO7YXDJXL7QOL2IOJC5U7CLR4Q}

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	2026-05-18T01:41:35.650971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3bf8b8d375fe0e5e90e48bb4f8971e41293e8f099aa03c8f2261236789151db

Aliases

arxiv: 1411.0695 · arxiv_version: 1411.0695v2 · doi: 10.48550/arxiv.1411.0695 · pith_short_12: WO7YXDJXL7QO · pith_short_16: WO7YXDJXL7QOL2IO · pith_short_8: WO7YXDJX

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/WO7YXDJXL7QOL2IOJC5U7CLR4Q \
  | 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: b3bf8b8d375fe0e5e90e48bb4f8971e41293e8f099aa03c8f2261236789151db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f7086be6d69e168507372805f7cb6ab097cd605bcc3d6f0a90fa3bfb042be15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-11-03T21:04:37Z",
    "title_canon_sha256": "71d6048e8e4b867aaca306ae5cd77cd07e839f85d0d675ce9fbfdeceb6c81e98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.0695",
    "kind": "arxiv",
    "version": 2
  }
}