Pith Number

pith:LM57IFKH

pith:2003:LM57IFKHOBTVF6UJL5ZWDUKVIC

not attested not anchored not stored refs pending

The Red Giant Branch Luminosity Function Bump

A. Pietrinferni, A. Recio-Blanco, F. De Angeli, G. Bono, G. Piotto, M. Riello, M. Salaris, M. Zoccali, S. Cassisi

arxiv:astro-ph/0308431 v1 · 2003-08-25 · 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{LM57IFKHOBTVF6UJL5ZWDUKVIC}

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	2026-07-04T16:51:31.147308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b3bf41547706752fa895f7361d1554089e7363f2ba31324046542b11f13ecef

Aliases

arxiv: astro-ph/0308431 · arxiv_version: astro-ph/0308431v1 · doi: 10.48550/arxiv.astro-ph/0308431 · pith_short_12: LM57IFKHOBTV · pith_short_16: LM57IFKHOBTVF6UJ · pith_short_8: LM57IFKH

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/LM57IFKHOBTVF6UJL5ZWDUKVIC \
  | 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: 5b3bf41547706752fa895f7361d1554089e7363f2ba31324046542b11f13ecef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "247c47cbffe765953237bfdacef03fe9cf03d6c650eb4098d1886421acf2c342",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-08-25T12:25:01Z",
    "title_canon_sha256": "0f358fa43375e6942a389829d108fbed17a3b4086e3fc29d5bc877cbbe3d1f5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0308431",
    "kind": "arxiv",
    "version": 1
  }
}