Pith Number

pith:OBSQP6JD

pith:2015:OBSQP6JD5MEIZZ5IL6ZQUK2HIT

not attested not anchored not stored refs pending

An Increase in the Mass of Planetary Systems around Lower-Mass Stars

Daniel Apai, Gijs D. Mulders, Ilaria Pascucci

arxiv:1510.02481 v2 · 2015-10-08 · 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{OBSQP6JD5MEIZZ5IL6ZQUK2HIT}

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	2026-05-18T01:25:38.235693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

706507f923eb088ce7a85fb30a2b4744cd93b4407af774ec08b532ea47c17184

Aliases

arxiv: 1510.02481 · arxiv_version: 1510.02481v2 · doi: 10.48550/arxiv.1510.02481 · pith_short_12: OBSQP6JD5MEI · pith_short_16: OBSQP6JD5MEIZZ5I · pith_short_8: OBSQP6JD

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/OBSQP6JD5MEIZZ5IL6ZQUK2HIT \
  | 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: 706507f923eb088ce7a85fb30a2b4744cd93b4407af774ec08b532ea47c17184

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c097b733b84564ee9e5363032f7920fc70775b4f5c64e689f3d2ef28cb47d02b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-10-08T20:05:44Z",
    "title_canon_sha256": "54eb0681241d50a8413a0abae0cdbd9855b437f33e2102d31c6aceea360fc234"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02481",
    "kind": "arxiv",
    "version": 2
  }
}