Pith Number

pith:LEPPFFVU

pith:2009:LEPPFFVU224O43LHOJX6JPUUGI

not attested not anchored not stored refs pending

Ruling out Stellar Companions and Resolving the Innermost Regions of Transitional Disks with the Keck Interferometer

Andrea M. Ghez, Elise Furlan, Jorg-Uwe Pott, Marshall D. Perrin, Stanimir Metchev, Tom M. Herbst

arxiv:0912.0846 v1 · 2009-12-04 · 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{LEPPFFVU224O43LHOJX6JPUUGI}

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	2026-05-18T02:34:02.292277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

591ef296b4d6b8ee6d67726fe4be94320b942294053f40d9146d1de7411e7d08

Aliases

arxiv: 0912.0846 · arxiv_version: 0912.0846v1 · doi: 10.48550/arxiv.0912.0846 · pith_short_12: LEPPFFVU224O · pith_short_16: LEPPFFVU224O43LH · pith_short_8: LEPPFFVU

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/LEPPFFVU224O43LHOJX6JPUUGI \
  | 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: 591ef296b4d6b8ee6d67726fe4be94320b942294053f40d9146d1de7411e7d08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be4a04bb568479d24f801fe3c37ebf65476bd46678166eadd33836e5852eaae4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-04T13:08:56Z",
    "title_canon_sha256": "2cd1a1fa4c4853bfe63edd363b681d7ad700c49e69c04d34d3c4cc5c3d48dcbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0846",
    "kind": "arxiv",
    "version": 1
  }
}