Pith Number

pith:6POL4GUH

pith:2018:6POL4GUHFQKSUNGZKKAYNLX7JG

not attested not anchored not stored refs pending

The K2 M67 Study: Establishing the Limits of Stellar Rotation Period Measurements in M67 with K2 Campaign 5 Data

Andrew Vanderburg, Jeffrey C. Smith, Jennifer van Saders, Rebecca Esselstein, Robert Mathieu, Soren Meibom, Suzanne Aigrain

arxiv:1805.09922 v2 · 2018-05-24 · 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{6POL4GUHFQKSUNGZKKAYNLX7JG}

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	2026-05-18T00:13:57.417844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3dcbe1a872c152a34d9528186aeff498192e6d5e916fb8b246cac0f1f9eb884

Aliases

arxiv: 1805.09922 · arxiv_version: 1805.09922v2 · doi: 10.48550/arxiv.1805.09922 · pith_short_12: 6POL4GUHFQKS · pith_short_16: 6POL4GUHFQKSUNGZ · pith_short_8: 6POL4GUH

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/6POL4GUHFQKSUNGZKKAYNLX7JG \
  | 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: f3dcbe1a872c152a34d9528186aeff498192e6d5e916fb8b246cac0f1f9eb884

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64bdd0375086984d0378d7df36021dbb78e2b2adf1014056a1c6402fc11db2b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-05-24T22:10:26Z",
    "title_canon_sha256": "c93ebe2956b2f52c84edb339cfdd865a68b2e148d242ff569b822b46bf48c39d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09922",
    "kind": "arxiv",
    "version": 2
  }
}