Pith Number

pith:57JPNKXZ

pith:2007:57JPNKXZ365FVQO7OGSU4JAE2K

not attested not anchored not stored refs pending

Vertical stratification of iron abundance in atmospheres of blue horizontal-branch stars

B. B. Behr, D. Bohlender, F. LeBlanc, G. A. Wade, V. Khalack

arxiv:0712.0809 v1 · 2007-12-05 · 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{57JPNKXZ365FVQO7OGSU4JAE2K}

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	2026-05-18T04:34:47.057137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efd2f6aaf9dfba5ac1df71a54e2404d28924da771dda0a3c517a150ccc67c79c

Aliases

arxiv: 0712.0809 · arxiv_version: 0712.0809v1 · doi: 10.48550/arxiv.0712.0809 · pith_short_12: 57JPNKXZ365F · pith_short_16: 57JPNKXZ365FVQO7 · pith_short_8: 57JPNKXZ

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/57JPNKXZ365FVQO7OGSU4JAE2K \
  | 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: efd2f6aaf9dfba5ac1df71a54e2404d28924da771dda0a3c517a150ccc67c79c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52f28dbc67e2c908993dc30c1010601ed876f7401543bfaf130e3133b34431a0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-05T19:47:49Z",
    "title_canon_sha256": "962af7a0d9a03d51c053959218e9178b597be6a6d84cdb947dd73976d147fb2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.0809",
    "kind": "arxiv",
    "version": 1
  }
}