Pith Number

pith:HYXBYD7H

pith:2012:HYXBYD7HKTFATN7VIKCCHAZ7S5

not attested not anchored not stored refs pending

How Good a Clock is Rotation? The Stellar Rotation-Mass-Age Relationship for Old Field Stars

Courtney R. Epstein, Marc H. Pinsonneault

arxiv:1203.1618 v2 · 2012-03-07 · 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{HYXBYD7HKTFATN7VIKCCHAZ7S5}

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	2026-05-18T03:03:44.876265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e2e1c0fe754ca09b7f5428423833f9754c485f77ba1f53fbc9b8f25ec80eeef

Aliases

arxiv: 1203.1618 · arxiv_version: 1203.1618v2 · doi: 10.48550/arxiv.1203.1618 · pith_short_12: HYXBYD7HKTFA · pith_short_16: HYXBYD7HKTFATN7V · pith_short_8: HYXBYD7H

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/HYXBYD7HKTFATN7VIKCCHAZ7S5 \
  | 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: 3e2e1c0fe754ca09b7f5428423833f9754c485f77ba1f53fbc9b8f25ec80eeef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c9fd3a33c2aa721f648da9f05cbb5b3072df56a906a0ddf4b1a5a0cb1669437",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-03-07T21:00:02Z",
    "title_canon_sha256": "b84673fa8ac84c156c1b7648e936a87addd23c5f1c3dc2124650bedad9bce20c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1618",
    "kind": "arxiv",
    "version": 2
  }
}