Pith Number

pith:VZ6KR7Y2

pith:2009:VZ6KR7Y22MKHGPU7U5ER4HTPXZ

not attested not anchored not stored refs pending

Near Infrared Observations of GQ Lup b Using the Gemini Integral Field Spectrograph NIFS

Christian Marois, David Lafreniere, Jean-Francois Lavigne, Rene Doyon, Travis Barman

arxiv:0908.3723 v1 · 2009-08-26 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VZ6KR7Y22MKHGPU7U5ER4HTPXZ}

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	2026-05-18T02:12:22.976234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae7ca8ff1ad314733e9fa7491e1e6fbe40aee708a853d69bf53ecb7b2668e59b

Aliases

arxiv: 0908.3723 · arxiv_version: 0908.3723v1 · doi: 10.48550/arxiv.0908.3723 · pith_short_12: VZ6KR7Y22MKH · pith_short_16: VZ6KR7Y22MKHGPU7 · pith_short_8: VZ6KR7Y2

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/VZ6KR7Y22MKHGPU7U5ER4HTPXZ \
  | 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: ae7ca8ff1ad314733e9fa7491e1e6fbe40aee708a853d69bf53ecb7b2668e59b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f7d624de724c2c04751fb91c64508195b8b4b0b5f22390852620bfbf1dbf729",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-08-26T03:29:31Z",
    "title_canon_sha256": "483c776fbd05afe71ed4dcdfe9c43dd33ba614c19680a5bff8e25b653378b253"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3723",
    "kind": "arxiv",
    "version": 1
  }
}