Pith Number

pith:KPFA7MQV

pith:2015:KPFA7MQV4C64NB2IC6UKJ7QYCB

not attested not anchored not stored refs pending

Characterization of Low-mass, Wide-separation Substellar Companions to Stars in Upper Scorpius: Near-infrared Photometry and Spectroscopy

Christiane Helling, David Lafreni\`ere, Fran\c{c}ois-Ren\'e Lachapelle, Jonathan Gagn\'e, Markus Janson, Ray Jayawardhana, Soeren Witte

arxiv:1503.07586 v1 · 2015-03-26 · 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{KPFA7MQV4C64NB2IC6UKJ7QYCB}

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	2026-05-18T02:20:20.390758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53ca0fb215e0bdc6874817a8a4fe181076742b230334425755cff1bd10e2f4df

Aliases

arxiv: 1503.07586 · arxiv_version: 1503.07586v1 · doi: 10.48550/arxiv.1503.07586 · pith_short_12: KPFA7MQV4C64 · pith_short_16: KPFA7MQV4C64NB2I · pith_short_8: KPFA7MQV

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/KPFA7MQV4C64NB2IC6UKJ7QYCB \
  | 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: 53ca0fb215e0bdc6874817a8a4fe181076742b230334425755cff1bd10e2f4df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82e137edc8bcb422f307971bd9a9c96ccc3bd5f63cf907eac17d97d4e79ac061",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-26T00:06:22Z",
    "title_canon_sha256": "3533a5840dce3f154c22293c66627828c668888d429a4fcf1feab75462fd3c17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07586",
    "kind": "arxiv",
    "version": 1
  }
}