Pith Number

pith:2G4FPJMX

pith:2025:2G4FPJMX4JLEMQH3RPM5IFTOBG

not attested not anchored not stored refs pending

Rotationally Driven Ultraviolet Emission of Red Giant Stars II. Metallicity, Activity, Binarity and Sub-subgiants

Don Dixon, Jamie Tayar, Keivan G. Stassun, Lyra Cao, Robert D. Mathieu

arxiv:2504.05561 v1 · 2025-04-07 · 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{2G4FPJMX4JLEMQH3RPM5IFTOBG}

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

Hints of enhanced magnetic activity after the intermediate rotation period gap as traced by the chromospheric Ca ii infrared triplet

Receipt and verification

First computed	2026-07-05T10:46:05.776698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1b857a597e2564640fb8bd9d4166e09b296692d3b0a090e47f63979f23e706e

Aliases

arxiv: 2504.05561 · arxiv_version: 2504.05561v1 · doi: 10.48550/arxiv.2504.05561 · pith_short_12: 2G4FPJMX4JLE · pith_short_16: 2G4FPJMX4JLEMQH3 · pith_short_8: 2G4FPJMX

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/2G4FPJMX4JLEMQH3RPM5IFTOBG \
  | 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: d1b857a597e2564640fb8bd9d4166e09b296692d3b0a090e47f63979f23e706e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e049f8676af30f5fc9a44c441418d9cf3a7eaba859b1471ffc260f6d8c0b04e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-04-07T23:26:36Z",
    "title_canon_sha256": "5f7201bea43ab3c71e52357efae834fe1291a2b8bd31211421b4df2410df3060"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.05561",
    "kind": "arxiv",
    "version": 1
  }
}