Pith Number

pith:7G7CEMSL

pith:2010:7G7CEMSLGNF2737KTUD4XGOYIY

not attested not anchored not stored refs pending

Eta Carinae long-term variability

A. Damineli, J. H. Groh, M. Corcoran, M. Teodoro

arxiv:1009.4399 v1 · 2010-09-22 · 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{7G7CEMSLGNF2737KTUD4XGOYIY}

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	2026-05-18T02:05:18.548941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9be22324b334bafefea9d07cb99d8463ca116e9e6ba8b6e2f7d5c1a61488563

Aliases

arxiv: 1009.4399 · arxiv_version: 1009.4399v1 · doi: 10.48550/arxiv.1009.4399 · pith_short_12: 7G7CEMSLGNF2 · pith_short_16: 7G7CEMSLGNF2737K · pith_short_8: 7G7CEMSL

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/7G7CEMSLGNF2737KTUD4XGOYIY \
  | 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: f9be22324b334bafefea9d07cb99d8463ca116e9e6ba8b6e2f7d5c1a61488563

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77c4b9101477f7af28527eeabe53b4d4e89092d5a52644b7565e1353f02b5ecc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-09-22T15:58:50Z",
    "title_canon_sha256": "b0d46ae3d901857fb610b89ebd5e3416f60012f0ab8d29ecab47e0991165d593"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4399",
    "kind": "arxiv",
    "version": 1
  }
}