Pith Number

pith:FJT5YOG4

pith:2019:FJT5YOG4F54I4KDXGMUYU65MOO

not attested not anchored not stored refs pending

Activity time series of old stars from late F to early K IV. Diagnosis from photometry

Anne-Marie Lagrange, Nadege Meunier

arxiv:1909.06566 v1 · 2019-09-14 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJT5YOG4F54I4KDXGMUYU65MOO}

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

Spectral Ratio Analysis: probing of a new suite of stellar activity indicators as a tool for astrophysical noise mitigation

Receipt and verification

First computed	2026-07-05T00:04:47.499554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a67dc38dc2f788e287733298a7bac73acf116a9e41d4c40ddc2d52a5668e0f6

Aliases

arxiv: 1909.06566 · arxiv_version: 1909.06566v1 · doi: 10.48550/arxiv.1909.06566 · pith_short_12: FJT5YOG4F54I · pith_short_16: FJT5YOG4F54I4KDX · pith_short_8: FJT5YOG4

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/FJT5YOG4F54I4KDXGMUYU65MOO \
  | 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: 2a67dc38dc2f788e287733298a7bac73acf116a9e41d4c40ddc2d52a5668e0f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00c49440b2d23037269779789418ec4ff1f9c3095866d599cfd8fcff6ba876c0",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-09-14T09:30:37Z",
    "title_canon_sha256": "c9588ff036fb179019f324b7a09853562d5d85ee6ecd180a83a2b99b825154f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06566",
    "kind": "arxiv",
    "version": 1
  }
}