Pith Number

pith:BBU3Y66T

pith:2012:BBU3Y66T4OL5HV4Q2C7LRWS2CD

not attested not anchored not stored refs pending

Deep Chandra Monitoring Observations of NGC 4649: II. Wide-Field Hubble Space Telescope Imaging of the Globular Clusters

Andreas Zezas (Crete), Andrew King (Leicester), Bin Luo (CfA), Dong-Woo Kim (CfA), Giuseppina Fabbiano (CfA), Jay Strader (Michigan State), Jean P. Brodie (Santa Cruz), John S. Gallagher (Wisconsin), Tassos Fragos (CfA), Vassiliki Kalogera (Northwestern)

arxiv:1210.3621 v1 · 2012-10-12 · astro-ph.CO · 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{BBU3Y66T4OL5HV4Q2C7LRWS2CD}

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	2026-05-18T01:53:55.957960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0869bc7bd3e397d3d790d0beb8da5a10d11f02eb362d13005b101ceb308813d5

Aliases

arxiv: 1210.3621 · arxiv_version: 1210.3621v1 · doi: 10.48550/arxiv.1210.3621 · pith_short_12: BBU3Y66T4OL5 · pith_short_16: BBU3Y66T4OL5HV4Q · pith_short_8: BBU3Y66T

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/BBU3Y66T4OL5HV4Q2C7LRWS2CD \
  | 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: 0869bc7bd3e397d3d790d0beb8da5a10d11f02eb362d13005b101ceb308813d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93d02cf9bbb5aa16cfa22dbb328d0dfad8fa62e4bf0ebc233d7b9b941939a1b8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-12T20:00:02Z",
    "title_canon_sha256": "1cf2a11e2e01f5bf0ad3e86fcfd49b72f491cd290ce344613e60bf0ee9c2903b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3621",
    "kind": "arxiv",
    "version": 1
  }
}