Pith Number

pith:TD6CE7ZH

pith:2009:TD6CE7ZHDTP5KKUM4AOHJ5HEMF

not attested not anchored not stored refs pending

Newly Identified Star Clusters in M33. II. Radial HST/ACS Fields

Ata Sarajedini, Donald R. Garnett, Izaskun San Roman, Jon A. Holtzman

arxiv:0904.4287 v1 · 2009-04-28 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TD6CE7ZHDTP5KKUM4AOHJ5HEMF}

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	2026-05-18T04:29:43.312457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98fc227f271cdfd52a8ce01c74f4e4615ee250458248af62f4c4975fbd6644f2

Aliases

arxiv: 0904.4287 · arxiv_version: 0904.4287v1 · doi: 10.48550/arxiv.0904.4287 · pith_short_12: TD6CE7ZHDTP5 · pith_short_16: TD6CE7ZHDTP5KKUM · pith_short_8: TD6CE7ZH

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/TD6CE7ZHDTP5KKUM4AOHJ5HEMF \
  | 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: 98fc227f271cdfd52a8ce01c74f4e4615ee250458248af62f4c4975fbd6644f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cddcede3025cf5033c71821737ece99cfc33417f08cf5861be015fc9306988b0",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-28T00:46:09Z",
    "title_canon_sha256": "774a5b21fa98e0300a25d3652f0a5f2ace94af7d32c26b0eff6f6d5b363aa669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4287",
    "kind": "arxiv",
    "version": 1
  }
}