Pith Number

pith:XC2O3DTE

pith:2008:XC2O3DTEEQOLPXNEWVQPFIT5HO

not attested not anchored not stored refs pending

Binary central stars of PN discovered through photometric variability. I. What we know and what we would like to find out

A. J. Smith, Orsola De Marco, Todd C. Hillwig

arxiv:0804.2436 v1 · 2008-04-15 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XC2O3DTEEQOLPXNEWVQPFIT5HO}

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	2026-05-18T02:15:53.620047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8b4ed8e64241cb7dda4b560f2a27d3bab03afa3bc47ba3d630da3dd58876d6c

Aliases

arxiv: 0804.2436 · arxiv_version: 0804.2436v1 · doi: 10.48550/arxiv.0804.2436 · pith_short_12: XC2O3DTEEQOL · pith_short_16: XC2O3DTEEQOLPXNE · pith_short_8: XC2O3DTE

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/XC2O3DTEEQOLPXNEWVQPFIT5HO \
  | 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: b8b4ed8e64241cb7dda4b560f2a27d3bab03afa3bc47ba3d630da3dd58876d6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "082c3a0bfe7652a5264fe2138dc33e5875be03187e88752b3e6d4c53a72a82f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-15T17:36:55Z",
    "title_canon_sha256": "a9dd9f3576baa71422304aab1174af94d0dc97c9a01be4e656f1d33008a84afe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2436",
    "kind": "arxiv",
    "version": 1
  }
}