Pith Number

pith:6Q7DN5LT

pith:2014:6Q7DN5LTCFMCRYGJPJ5H64B5TL

not attested not anchored not stored refs pending

Star clusters in M33: updated UBVRI photometry, ages, metallicities, and masses

Richard de Grijs, Zhou Fan

arxiv:1402.3029 v1 · 2014-02-13 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6Q7DN5LTCFMCRYGJPJ5H64B5TL}

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	2026-05-18T01:44:38.648623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f43e36f573115828e0c97a7a7f703d9acdeb57c29f9a5e1708afad8c4abdc80c

Aliases

arxiv: 1402.3029 · arxiv_version: 1402.3029v1 · doi: 10.48550/arxiv.1402.3029 · pith_short_12: 6Q7DN5LTCFMC · pith_short_16: 6Q7DN5LTCFMCRYGJ · pith_short_8: 6Q7DN5LT

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/6Q7DN5LTCFMCRYGJPJ5H64B5TL \
  | 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: f43e36f573115828e0c97a7a7f703d9acdeb57c29f9a5e1708afad8c4abdc80c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1404b7adfe841509b37d44984fab1e5e792815073394b6f3c9e8ef3040ebdc87",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-02-13T04:33:32Z",
    "title_canon_sha256": "ce20f089a837806205d7633d55f45accdfc0eaaa08b4fb5b26619db0037f720d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3029",
    "kind": "arxiv",
    "version": 1
  }
}