Pith Number

pith:M4BJDRZJ

pith:2018:M4BJDRZJ5G3KDKDEJWRIXBMYDN

not attested not anchored not stored refs pending

The K2 M67 Study: A Curiously Young Star in an Eclipsing Binary in an Old Open Cluster

Andrew Vanderburg, David W. Latham, Dennis Stello, Domenico Nardiello, Eric L. Sandquist, Garrett Somers, Hannu Parviainen, Jamie Tayar, Jerome A. Orosz, Luca Malavolta, Luigi R. Bedin, Marc H. Pinsonneault, Mattia Libralato, Maxwell L. Pollack, Rebecca Esselstein, Robert D. Mathieu, Samuel N. Quinn, Suzanne Aigrain, Timothy M. Brown

arxiv:1802.05854 v1 · 2018-02-16 · 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{M4BJDRZJ5G3KDKDEJWRIXBMYDN}

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	2026-05-18T00:20:02.115074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

670291c729e9b6a1a8644da28b85981b749749f5797882364a7415e1aaa43a4a

Aliases

arxiv: 1802.05854 · arxiv_version: 1802.05854v1 · doi: 10.48550/arxiv.1802.05854 · pith_short_12: M4BJDRZJ5G3K · pith_short_16: M4BJDRZJ5G3KDKDE · pith_short_8: M4BJDRZJ

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/M4BJDRZJ5G3KDKDEJWRIXBMYDN \
  | 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: 670291c729e9b6a1a8644da28b85981b749749f5797882364a7415e1aaa43a4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdc5e8334d2a78419e89ee6bd7cedfbc9ca8f04fb29102fd43995a62539239de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-02-16T07:47:14Z",
    "title_canon_sha256": "461115749e46646c88a4017741538c216082951c85357a43eb857c94ce3bddf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05854",
    "kind": "arxiv",
    "version": 1
  }
}