Pith Number

pith:74C6IGTZ

pith:2019:74C6IGTZV2OEDQIHKOXMMITEFQ

not attested not anchored not stored refs pending

On the use of field RR Lyrae as Galactic probes: I. The Oosterhoff dichotomy based on fundamental variables

A.Layden, B.Chaboyer, B.Sesar, C.K.Gilligan, C.Sneden, D.Magurno, E.Valenti, E.Zoccali, F.Th\'evenin, G.Altavilla, G.Bono, G.Fiorentino, G.Giuffrida, G.Iannicola, G.W.Preston, I.Ferraro, M.Dall'Ora, M.Fabrizio, M.Marengo, M.Monelli, M.Nonino, P.M.Marrese, S.Marinoni, V.F.Braga

arxiv:1908.02064 v2 · 2019-08-06 · astro-ph.SR · 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{74C6IGTZV2OEDQIHKOXMMITEFQ}

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	2026-07-05T00:06:52.805216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff05e41a79ae9c41c10753aec622642c20cf2abe75b4193fa63c563fd30a8dc5

Aliases

arxiv: 1908.02064 · arxiv_version: 1908.02064v2 · doi: 10.48550/arxiv.1908.02064 · pith_short_12: 74C6IGTZV2OE · pith_short_16: 74C6IGTZV2OEDQIH · pith_short_8: 74C6IGTZ

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/74C6IGTZV2OEDQIHKOXMMITEFQ \
  | 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: ff05e41a79ae9c41c10753aec622642c20cf2abe75b4193fa63c563fd30a8dc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6c38bc01a1156491c043d6a1b2ccb946c72973fbc444d62d8ae725643b2d869",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-08-06T10:35:24Z",
    "title_canon_sha256": "feb0f521902af7b9acf775b8405424e76bdb30ab0a4c6e67448a4c249aca5ffb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02064",
    "kind": "arxiv",
    "version": 2
  }
}