Pith Number

pith:P5FI7EMN

pith:2018:P5FI7EMN7OLQQP74YJM7C5ZCXT

not attested not anchored not stored refs pending

Asteroseismic age estimates of RGB stars in open clusters. A statistical investigation of different estimation methods

E. Tognelli, G. Valle, M. Dell'Omodarme, P.G. Prada Moroni, S. Degl'Innocenti

arxiv:1809.08186 v1 · 2018-09-21 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P5FI7EMN7OLQQP74YJM7C5ZCXT}

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	2026-05-18T00:00:17.966410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f4a8f918dfb97083ffcc259f17722bcc5e17e4947031582b7e18403b475db6e

Aliases

arxiv: 1809.08186 · arxiv_version: 1809.08186v1 · doi: 10.48550/arxiv.1809.08186 · pith_short_12: P5FI7EMN7OLQ · pith_short_16: P5FI7EMN7OLQQP74 · pith_short_8: P5FI7EMN

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/P5FI7EMN7OLQQP74YJM7C5ZCXT \
  | 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: 7f4a8f918dfb97083ffcc259f17722bcc5e17e4947031582b7e18403b475db6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2bbcafa1902c76add5d50b85db2885d2b98fee7312e982d9d152a9486cd7bee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-21T16:11:09Z",
    "title_canon_sha256": "6b919b2911405ad399be383099fd742fcf91be52e46aad1e0a483a51c85931ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08186",
    "kind": "arxiv",
    "version": 1
  }
}