Pith Number

pith:Y3PUFEFD

pith:2015:Y3PUFEFD5Z75BFTLHDQ3Q3GCI2

not attested not anchored not stored refs pending

A nearby M star with three transiting super-Earths discovered by K2

Andrew W. Howard, B.J. Fulton, Brad M. S. Hansen, Christian Obermeier, Christoph Mordasini, David R. Ciardi, Eddie Schlafly, Elisa V. Quintana, Erik Petigura, Howard T. Isaacson, Ian J. M. Crossfield, Imke de Pater, Jessie L. Christiansen, Joshua Schlieder, Justin R. Crepp, Katherine de Kleer, Kimberly M. Aller, Lauren M. Weiss, Lisa Kaltenegger, Michael C. Liu, Niall Deacon, Sebastien Lepine, Steve B. Howell, Thomas Barclay, Thomas Henning, Tom Greene, Travis Barman

arxiv:1501.03798 v2 · 2015-01-15 · astro-ph.EP · 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{Y3PUFEFD5Z75BFTLHDQ3Q3GCI2}

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	2026-05-18T01:41:10.731631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6df4290a3ee7fd0966b38e1b86cc2468c9a1f451251a53d4f382e2d62b601a0

Aliases

arxiv: 1501.03798 · arxiv_version: 1501.03798v2 · doi: 10.48550/arxiv.1501.03798 · pith_short_12: Y3PUFEFD5Z75 · pith_short_16: Y3PUFEFD5Z75BFTL · pith_short_8: Y3PUFEFD

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/Y3PUFEFD5Z75BFTLHDQ3Q3GCI2 \
  | 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: c6df4290a3ee7fd0966b38e1b86cc2468c9a1f451251a53d4f382e2d62b601a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e13c0383f6f9eb315f665f10907ab4235dbdc4910f436f645ddb0f1faac653ad",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-01-15T20:24:52Z",
    "title_canon_sha256": "fb45390a60a44c06fb4b51247759d5223dc9430165d55bdc4238fa22eab3eccb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03798",
    "kind": "arxiv",
    "version": 2
  }
}