Pith Number

pith:ATSJGQPW

pith:2009:ATSJGQPWQSYZ2UNGQNTX43RHHS

not attested not anchored not stored refs pending

The Color-Magnitude Relation for Metal-Poor Globular Clusters in M87: Confirmation From Deep HST/ACS Imaging

2), (2) Kavli Institute for Astronomy, (3) Pontificia Universidad Catolica de Chile, 4), (4) Harvard-Smithsonian CfA, (5) Herzberg Institute of Astrophysics, (6) ESO, (7) McMaster University (8) Johns Hopkins University), Andres Jordan (3, Astrophysics, Eric W. Peng (1, Gerhardt R. Meurer (8) ((1) Peking University, John P. Blakeslee (5), Juan P. Madrid (7), Laura Ferrarese (5), Patrick Cote (5), Steffen Mieske (6), William E. Harris (7)

arxiv:0907.2524 v1 · 2009-07-15 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ATSJGQPWQSYZ2UNGQNTX43RHHS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:13:02.931648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04e49341f684b19d51a683677e6e273c8f96fe8df3874749404531364d9024db

Aliases

arxiv: 0907.2524 · arxiv_version: 0907.2524v1 · doi: 10.48550/arxiv.0907.2524 · pith_short_12: ATSJGQPWQSYZ · pith_short_16: ATSJGQPWQSYZ2UNG · pith_short_8: ATSJGQPW

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/ATSJGQPWQSYZ2UNGQNTX43RHHS \
  | 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: 04e49341f684b19d51a683677e6e273c8f96fe8df3874749404531364d9024db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c201c05d8275b70664ef77be4c97346477f14d52283f956fb1821adfe4c0260a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-07-15T08:33:31Z",
    "title_canon_sha256": "8798361394e5cfbeb5b23534016e664d756e828586ed2570545da3e6c9dd288c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2524",
    "kind": "arxiv",
    "version": 1
  }
}