Pith Number

pith:YB5GX6EH

pith:2009:YB5GX6EH7X73G46OAXHNMQHMMS

not attested not anchored not stored refs pending

A Chandra and Spitzer census of the young star cluster in the reflection nebula NGC 7129

(2) SUPA, A. Scholz (2) ((1) INAF - Osservatorio Astronomico di Palermo, B. Stelzer (1), St.Andrews)

arxiv:0907.4252 v1 · 2009-07-24 · 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{YB5GX6EH7X73G46OAXHNMQHMMS}

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	2026-05-18T02:12:53.940405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c07a6bf887fdffb373ce05ced640ec6499c122d3c208d17b41ec84605e143613

Aliases

arxiv: 0907.4252 · arxiv_version: 0907.4252v1 · doi: 10.48550/arxiv.0907.4252 · pith_short_12: YB5GX6EH7X73 · pith_short_16: YB5GX6EH7X73G46O · pith_short_8: YB5GX6EH

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/YB5GX6EH7X73G46OAXHNMQHMMS \
  | 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: c07a6bf887fdffb373ce05ced640ec6499c122d3c208d17b41ec84605e143613

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f75aa5497df204807fe134e0b234867bfd781fa7f935686503d343e217017e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-24T10:23:26Z",
    "title_canon_sha256": "2004ef943c8a82fa79be7f64ab2da4db697b5ef81e007280a3fe783c1e57a09f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4252",
    "kind": "arxiv",
    "version": 1
  }
}