Pith Number

pith:GPKT3ETZ

pith:2009:GPKT3ETZ4RXKR55YL6HS3CBV73

not attested not anchored not stored refs pending

RR Lyrae and Type II Cepheid Variables Adhere to a Common Distance Relation

Daniel J. Majaess

arxiv:0912.2928 v2 · 2009-12-15 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GPKT3ETZ4RXKR55YL6HS3CBV73}

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	2026-05-18T02:33:56.437959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33d53d9279e46ea8f7b85f8f2d8835fee2a783b86b3d7e3da1ffab8ac18e1b19

Aliases

arxiv: 0912.2928 · arxiv_version: 0912.2928v2 · doi: 10.48550/arxiv.0912.2928 · pith_short_12: GPKT3ETZ4RXK · pith_short_16: GPKT3ETZ4RXKR55Y · pith_short_8: GPKT3ETZ

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/GPKT3ETZ4RXKR55YL6HS3CBV73 \
  | 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: 33d53d9279e46ea8f7b85f8f2d8835fee2a783b86b3d7e3da1ffab8ac18e1b19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cd05c4a37d47fdf200d1340dd448ee8b1f629424c20e964c88bb7d85c46d26a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-15T15:25:29Z",
    "title_canon_sha256": "d80cec521832c153f7caa54e0b37a73c43a9b70eb58c982dd891b260a22282a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2928",
    "kind": "arxiv",
    "version": 2
  }
}