Pith Number

pith:FPCLFWRQ

pith:2013:FPCLFWRQONAHEOWZTZ5D3HQNWQ

not attested not anchored not stored refs pending

The supergiant B[e] star LHA 115-S 18 - binary and/or luminous blue variable?

A. Udalski, E. S. Bartlett, F. Haberl, I. Negueruela, J. B. Lamb, J. S. Clark, M. J. Coe, R. Dorda

arxiv:1305.0459 v1 · 2013-05-02 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPCLFWRQONAHEOWZTZ5D3HQNWQ}

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	2026-05-18T01:50:13.152777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bc4b2da307340723ad99e7a3d9e0db43de0dfc995c8d4606e434b7a1a7c7b44

Aliases

arxiv: 1305.0459 · arxiv_version: 1305.0459v1 · doi: 10.48550/arxiv.1305.0459 · pith_short_12: FPCLFWRQONAH · pith_short_16: FPCLFWRQONAHEOWZ · pith_short_8: FPCLFWRQ

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/FPCLFWRQONAHEOWZTZ5D3HQNWQ \
  | 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: 2bc4b2da307340723ad99e7a3d9e0db43de0dfc995c8d4606e434b7a1a7c7b44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5bb762448e3f3b4403945a231d1878e252d3e43c62b187605f36516feadd224",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-05-02T14:52:05Z",
    "title_canon_sha256": "1fc6a1019e18003cd86755ad84174b865e114dc2031ce3651d75a66db5d5bcbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0459",
    "kind": "arxiv",
    "version": 1
  }
}