Pith Number

pith:UDRL3NII

pith:2009:UDRL3NII77AIPESWAUEQGX5IHO

not attested not anchored not stored refs pending

High angular resolution integral-field spectroscopy of the Galaxy's nuclear cluster: a missing stellar cusp?

(2) Caltech, Andrea M. Ghez (1), James Larkin (1) ((1) University of California, Jessica R. Lu (2), Keith Matthews (2), Los Angeles, Mark R. Morris (1), Pasadena), Sylvana Yelda (1), Tuan Do (1)

arxiv:0908.0311 v1 · 2009-08-03 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UDRL3NII77AIPESWAUEQGX5IHO}

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	2026-05-18T02:12:45.045561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0e2bdb508ffc08792560509035fa83baf9f77941dfd31a627fde998e88c44b9

Aliases

arxiv: 0908.0311 · arxiv_version: 0908.0311v1 · doi: 10.48550/arxiv.0908.0311 · pith_short_12: UDRL3NII77AI · pith_short_16: UDRL3NII77AIPESW · pith_short_8: UDRL3NII

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/UDRL3NII77AIPESWAUEQGX5IHO \
  | 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: a0e2bdb508ffc08792560509035fa83baf9f77941dfd31a627fde998e88c44b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8b73a52085a4075013936cb49e1f98fbb2314cd1a9fd834ea54895e05febb1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-03T18:37:50Z",
    "title_canon_sha256": "d6e06700149ca37e436a3b706cf54300ea62881f3fc7556e64194ed5b68e323c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0311",
    "kind": "arxiv",
    "version": 1
  }
}