Pith Number

pith:KY7K2HLM

pith:2020:KY7K2HLMWCWUEAGQOKDWMRWDL4

not attested not anchored not stored refs pending

An extended theoretical scenario for Classical Cepheids. I. Modeling Galactic Cepheids in the Gaia photometric system

G. De Somma, I. Musella, M. Cignoni, M. Marconi, R. Molinaro, V. Ripepi

arxiv:2001.11065 v1 · 2020-01-29 · 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{KY7K2HLMWCWUEAGQOKDWMRWDL4}

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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

Blue Loops, Cepheids, and Forays into Axions

Receipt and verification

First computed	2026-07-05T00:48:23.561482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

563ead1d6cb0ad4200d072876646c35f0e196db9e037bba8eb24c8a854b2c4ec

Aliases

arxiv: 2001.11065 · arxiv_version: 2001.11065v1 · doi: 10.48550/arxiv.2001.11065 · pith_short_12: KY7K2HLMWCWU · pith_short_16: KY7K2HLMWCWUEAGQ · pith_short_8: KY7K2HLM

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/KY7K2HLMWCWUEAGQOKDWMRWDL4 \
  | 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: 563ead1d6cb0ad4200d072876646c35f0e196db9e037bba8eb24c8a854b2c4ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fb4141344c0a19e8d3cfb3abcd369fe45ffa033857c5b48604f66c7490c2c68",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-01-29T19:45:46Z",
    "title_canon_sha256": "e8a00edee4372c4f182d90478be9a423aeb71cde6621b63f2ae821c142f513fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.11065",
    "kind": "arxiv",
    "version": 1
  }
}