Pith Number

pith:IZ4PBPIR

pith:2011:IZ4PBPIR5TYKNQ3VUCAULUXJG4

not attested not anchored not stored refs pending

The Case for the Dual Halo of the Milky Way

(10) Indian Institute of Astrophysics, (11) Univ. of Kentucky, (12) FermiLab, (13) Univ. of Chicago), 2), (2) NOAO, (3) Australian National Univ., 4), (4) Macquarie Univ., (5) Univ. of Washington, (6) Ehwa Womans Univ., (7) Tohoku Univ., (8) USNO, (9) Torino Observatory, Australia, Bangalore, Brian Yanny (12), Daniela Carollo (3, Deokkeun An (6), Donald G. York (13) ((1) Michigan State Univ., Italy, Japan, Jeffrey A. Munn (8), John E. Norris (3), Ken C. Freeman (3), Korea, Masashi Chiba (7), Paola Re Fiorentin (9), Ronald Wilhelm (11), Thirupathi Sivarani (10), Timothy C. Beers (1, Young Sun Lee (1), Zeljko Ivezic (5)

arxiv:1104.2513 v2 · 2011-04-13 · 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{IZ4PBPIR5TYKNQ3VUCAULUXJG4}

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	2026-05-18T02:02:29.864831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4678f0bd11ecf0a6c375a08145d2e93711ffd1b11966fff12a4c8dcc12c8a794

Aliases

arxiv: 1104.2513 · arxiv_version: 1104.2513v2 · doi: 10.48550/arxiv.1104.2513 · pith_short_12: IZ4PBPIR5TYK · pith_short_16: IZ4PBPIR5TYKNQ3V · pith_short_8: IZ4PBPIR

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/IZ4PBPIR5TYKNQ3VUCAULUXJG4 \
  | 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: 4678f0bd11ecf0a6c375a08145d2e93711ffd1b11966fff12a4c8dcc12c8a794

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1ae948ee32e44bf817df4ab610bb1968558d47182994ad72e589ef1dd57fd3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-04-13T14:37:26Z",
    "title_canon_sha256": "bcf7fa7d3b35b58be1cae7c3f72317f8b382e2a2709b988e61948b356f15184e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2513",
    "kind": "arxiv",
    "version": 2
  }
}