Pith Number

pith:IWF6H45M

pith:2009:IWF6H45MVNP2AKZ5XGUWFPYBMI

not attested not anchored not stored refs pending

A Unique Star in the Outer Halo of the Milky Way

Brian Yanny, Carlos Allende Prieto, Constance M. Rockosi, David K. Lai, Jennifer A. Johnson, Michael Bolte, Timothy C. Beers, Young Sun Lee

arxiv:0904.4693 v1 · 2009-04-29 · astro-ph.SR · 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{IWF6H45MVNP2AKZ5XGUWFPYBMI}

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	2026-05-18T04:29:43.257358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

458be3f3acab5fa02b3db9a962bf01622213a7f54e1a0fea431d523d1a4efd73

Aliases

arxiv: 0904.4693 · arxiv_version: 0904.4693v1 · doi: 10.48550/arxiv.0904.4693 · pith_short_12: IWF6H45MVNP2 · pith_short_16: IWF6H45MVNP2AKZ5 · pith_short_8: IWF6H45M

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/IWF6H45MVNP2AKZ5XGUWFPYBMI \
  | 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: 458be3f3acab5fa02b3db9a962bf01622213a7f54e1a0fea431d523d1a4efd73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "509442161c441d949fc69f0ca247f14c10c08af5a8159e90a34ac1fa9f696ce8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-29T20:14:14Z",
    "title_canon_sha256": "88189ac31329fb7cb6a5a060660aa0f85b188c5b0a03f7bfd0c8ce24bb2dbcd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4693",
    "kind": "arxiv",
    "version": 1
  }
}