Pith Number

pith:UCJEGAMJ

pith:2000:UCJEGAMJE2MTU7MJFL6TSDXPAP

not attested not anchored not stored refs pending

Classical Cepheid pulsation models. VI. The Hertzsprung progression

2229 Loma Linda, G. Bono (Astron. Obs. of Roma), Los Alamos), M. Marconi (Astron. Obs. of Capodimonte), R. F. Stellingwerf (SC

arxiv:astro-ph/0006229 v1 · 2000-06-16 · 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{UCJEGAMJE2MTU7MJFL6TSDXPAP}

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.

Cited by

1 paper in Pith

Stellar evolution along the AGB as revealed by the shape of Miras' visual light curves

Receipt and verification

First computed	2026-07-04T14:10:26.308242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a09243018926993a7d892afd390eef03e5aef3416dfacafd9c670d3cbbcb17f3

Aliases

arxiv: astro-ph/0006229 · arxiv_version: astro-ph/0006229v1 · doi: 10.48550/arxiv.astro-ph/0006229 · pith_short_12: UCJEGAMJE2MT · pith_short_16: UCJEGAMJE2MTU7MJ · pith_short_8: UCJEGAMJ

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/UCJEGAMJE2MTU7MJFL6TSDXPAP \
  | 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: a09243018926993a7d892afd390eef03e5aef3416dfacafd9c670d3cbbcb17f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f5557234e2357628efe667944220b7f014befff6f6ba7ad5a954d894efe4e58",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-16T14:58:31Z",
    "title_canon_sha256": "b5e40a1ae7ce3b736f089c0e41166c44050ec57285aed31971ee5d1d8b352296"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006229",
    "kind": "arxiv",
    "version": 1
  }
}