Pith Number

pith:GHGCDE5Z

pith:2012:GHGCDE5Z5WRQD2R7NWH6T4RWAB

not attested not anchored not stored refs pending

Discovery of the spectroscopic binary nature of the Cepheids X Puppis and XX Sagittarii

Aliz Derekas, Csaba Kiss, L\'aszl\'o Szabados, P\'eter Klagyivik

arxiv:1210.5069 v1 · 2012-10-18 · 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{GHGCDE5Z5WRQD2R7NWH6T4RWAB}

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	2026-05-18T03:42:54.373591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31cc2193b9eda301ea3f6d8fe9f2360040908f562e4d994240e2cf03c92c38f1

Aliases

arxiv: 1210.5069 · arxiv_version: 1210.5069v1 · doi: 10.48550/arxiv.1210.5069 · pith_short_12: GHGCDE5Z5WRQ · pith_short_16: GHGCDE5Z5WRQD2R7 · pith_short_8: GHGCDE5Z

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/GHGCDE5Z5WRQD2R7NWH6T4RWAB \
  | 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: 31cc2193b9eda301ea3f6d8fe9f2360040908f562e4d994240e2cf03c92c38f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66fe2c132623ccb4569b0bfeafc397f82e40dcd4c9540d18f1f86bea447eec10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-18T09:45:57Z",
    "title_canon_sha256": "aed7876841e0871a844ab49b3e4a623d890f1241284eb6af4fd6e01307a78fa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5069",
    "kind": "arxiv",
    "version": 1
  }
}