Pith Number

pith:C2PGRQPV

pith:2009:C2PGRQPV46DOMW5KDNZ656YOEG

not attested not anchored not stored refs pending

Absolute dimensions of eclipsing binaries. XVII. A metal-weak F-type system, perhaps with preference for Y = 0.23-0.24

A. Claret, B.E. Helt, E.H. Olsen, J.V. Clausen

arxiv:0912.3108 v1 · 2009-12-16 · 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{C2PGRQPV46DOMW5KDNZ656YOEG}

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	2026-05-18T02:10:16.664185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

169e68c1f5e786e65baa1b73eefb0e218bf078c36fa92e5b3e8866d864d3267a

Aliases

arxiv: 0912.3108 · arxiv_version: 0912.3108v1 · doi: 10.48550/arxiv.0912.3108 · pith_short_12: C2PGRQPV46DO · pith_short_16: C2PGRQPV46DOMW5K · pith_short_8: C2PGRQPV

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/C2PGRQPV46DOMW5KDNZ656YOEG \
  | 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: 169e68c1f5e786e65baa1b73eefb0e218bf078c36fa92e5b3e8866d864d3267a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d362ac30be22ff48924be6ada1f6b13302c1d260a6f5e68ecb5ef4b0c0244e1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-16T11:31:50Z",
    "title_canon_sha256": "6d59191dbacc2c0e923f5e9908c4da89bf8e514adcb383d78e588adb695bb050"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3108",
    "kind": "arxiv",
    "version": 1
  }
}