Pith Number

pith:QGFBFXHK

pith:2009:QGFBFXHKPPWZRZ2ZZRVM54ORNU

not attested not anchored not stored refs pending

Formation and Detection of Earth Mass Planets around Low Mass Stars

Greg Laughlin, Ryan Montgomery

arxiv:0903.2452 v1 · 2009-03-13 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QGFBFXHKPPWZRZ2ZZRVM54ORNU}

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	2026-05-18T02:14:28.392999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

818a12dcea7bed98e759cc6acef1d16d25b004b6d2216040405e2773f1785347

Aliases

arxiv: 0903.2452 · arxiv_version: 0903.2452v1 · doi: 10.48550/arxiv.0903.2452 · pith_short_12: QGFBFXHKPPWZ · pith_short_16: QGFBFXHKPPWZRZ2Z · pith_short_8: QGFBFXHK

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/QGFBFXHKPPWZRZ2ZZRVM54ORNU \
  | 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: 818a12dcea7bed98e759cc6acef1d16d25b004b6d2216040405e2773f1785347

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "030371905f68741e637287126fbf1b50b7c711e5970aa344bdc00b6cdb56b3f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-03-13T18:37:41Z",
    "title_canon_sha256": "0d1c285e825f1f1426c3f6d87a2f78c368bea5b8df6e7de2ab3038ef350ed654"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2452",
    "kind": "arxiv",
    "version": 1
  }
}