Pith Number

pith:CS4MZNRL

pith:2009:CS4MZNRLLGQ6JY3CVNXJCHDS2I

not attested not anchored not stored refs pending

Lithium in the Intermediate-Age Open Cluster, NGC 3680

(2) Indiana University), B. A. Twarog (1), B. J. Anthony-Twarog (1), C. P. Deliyannis (2), J. D. Cummings (2) ((1) University of Kansas, K. V. Croxall (2)

arxiv:0908.2136 v1 · 2009-08-14 · 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{CS4MZNRLLGQ6JY3CVNXJCHDS2I}

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	2026-05-18T02:12:34.029708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14b8ccb62b59a1e4e362ab6e911c72d20e7dbab2ee49d43ed4af87bd29bae19a

Aliases

arxiv: 0908.2136 · arxiv_version: 0908.2136v1 · doi: 10.48550/arxiv.0908.2136 · pith_short_12: CS4MZNRLLGQ6 · pith_short_16: CS4MZNRLLGQ6JY3C · pith_short_8: CS4MZNRL

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/CS4MZNRLLGQ6JY3CVNXJCHDS2I \
  | 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: 14b8ccb62b59a1e4e362ab6e911c72d20e7dbab2ee49d43ed4af87bd29bae19a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "682575678b71d1bfceb4c8dc91e6fada072010405e8748316d9fd564ca68c94c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-14T20:44:38Z",
    "title_canon_sha256": "175e9a2c50bc94b85f9ee14bb01c000356ec816e3b1b4309bf68c1aa5987b318"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2136",
    "kind": "arxiv",
    "version": 1
  }
}