Pith Number

pith:YRRVM5PU

pith:2002:YRRVM5PU2HCDKDAFEL2KA5MR4U

not attested not anchored not stored refs pending

Chemical Composition of the Carbon-rich, Extremely Metal-Poor Star CS 29498--043: A New Class of Extremely Metal-Poor Stars with Excesses of Magnesium and Silicon

H. Ando, J.E. Norris, S.G. Ryan, T.C. Beers, W. Aoki

arxiv:astro-ph/0208019 v1 · 2002-08-01 · 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{YRRVM5PU2HCDKDAFEL2KA5MR4U}

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	2026-07-04T16:30:28.436969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4635675f4d1c4350c0522f4a07591e529145108c6b6b0b016f3e2df40af4c5a

Aliases

arxiv: astro-ph/0208019 · arxiv_version: astro-ph/0208019v1 · doi: 10.48550/arxiv.astro-ph/0208019 · pith_short_12: YRRVM5PU2HCD · pith_short_16: YRRVM5PU2HCDKDAF · pith_short_8: YRRVM5PU

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/YRRVM5PU2HCDKDAFEL2KA5MR4U \
  | 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: c4635675f4d1c4350c0522f4a07591e529145108c6b6b0b016f3e2df40af4c5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "065e9db132262b99364aa9574f3ec82a32d5f612687c3d6764123f50913cb4b6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-01T04:48:12Z",
    "title_canon_sha256": "17c9cac88158f535f2770a0d3a84f8e0ed928a8b42b63c0dc6e5e175dbfcdfd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208019",
    "kind": "arxiv",
    "version": 1
  }
}