Pith Number

pith:NATJJRCT

pith:2008:NATJJRCTKFX3CFXMIRU3PCK2JD

not attested not anchored not stored refs pending

Near-IR spectroscopic ages of massive star clusters in M82

A. Lan\c{c}on, D. Ladjal, J. S. Gallagher III, L. J. Smith, M. Mouhcine, R. de Grijs

arxiv:0812.4888 v1 · 2008-12-29 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NATJJRCTKFX3CFXMIRU3PCK2JD}

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	2026-05-18T04:14:36.229266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

682694c453516fb116ec4469b7895a48c980c7698079f99b71d84a1aff34e20c

Aliases

arxiv: 0812.4888 · arxiv_version: 0812.4888v1 · doi: 10.48550/arxiv.0812.4888 · pith_short_12: NATJJRCTKFX3 · pith_short_16: NATJJRCTKFX3CFXM · pith_short_8: NATJJRCT

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/NATJJRCTKFX3CFXMIRU3PCK2JD \
  | 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: 682694c453516fb116ec4469b7895a48c980c7698079f99b71d84a1aff34e20c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b5aea2be39dc2c0313721f187d243094d30aec6cd5d5aa05082827d86ec5891",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-29T10:14:35Z",
    "title_canon_sha256": "de30b88f37d220dfd0a9e16ca6782f0e50fc26ac55b5f9d7b3b41365e16babde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4888",
    "kind": "arxiv",
    "version": 1
  }
}