Pith Number

pith:PT4IBXU5

pith:1999:PT4IBXU5OS6SNCO5IUSHOHUBFX

not attested not anchored not stored refs pending

The Isotopic Abundances of Magnesium in Stars

David L. Lambert (University of Texas at Austin), Pamela Gay

arxiv:astro-ph/9911217 v1 · 1999-11-11 · 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{PT4IBXU5OS6SNCO5IUSHOHUBFX}

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	2026-07-04T16:11:53.961850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf880de9d74bd2689dd4524771e812decd361d44d3bff2b3fc0dcfc0ded63b0

Aliases

arxiv: astro-ph/9911217 · arxiv_version: astro-ph/9911217v1 · doi: 10.48550/arxiv.astro-ph/9911217 · pith_short_12: PT4IBXU5OS6S · pith_short_16: PT4IBXU5OS6SNCO5 · pith_short_8: PT4IBXU5

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/PT4IBXU5OS6SNCO5IUSHOHUBFX \
  | 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: 7cf880de9d74bd2689dd4524771e812decd361d44d3bff2b3fc0dcfc0ded63b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07de08a0dba883843148056473aee743420d31ef4e1e79edd3a83abef000cac3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-11T22:09:34Z",
    "title_canon_sha256": "77760f5f132859f9448a4e429f2486e41a9135f61a6674d382060c7ea1c908b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911217",
    "kind": "arxiv",
    "version": 1
  }
}