Pith Number

pith:VCLI2T6C

pith:2009:VCLI2T6CQLNNLS4W5FJ5YMISHG

not attested not anchored not stored refs pending

Chemical composition of the young open clusters IC2602 and IC2391

2), Sofia Randich (2) (1 Dipartimento di Astronomia e Scienza dello Spazio, Universita' di Firenze; 2 INAF Osservatorio Astrofisico di Arcetri), Valentina D'Orazi (1

arxiv:0905.1835 v1 · 2009-05-12 · 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{VCLI2T6CQLNNLS4W5FJ5YMISHG}

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	2026-05-18T02:13:45.500276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8968d4fc282dad5cb96e953dc311239995a9d7b0d69b2e8d879d9f216520a04

Aliases

arxiv: 0905.1835 · arxiv_version: 0905.1835v1 · doi: 10.48550/arxiv.0905.1835 · pith_short_12: VCLI2T6CQLNN · pith_short_16: VCLI2T6CQLNNLS4W · pith_short_8: VCLI2T6C

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/VCLI2T6CQLNNLS4W5FJ5YMISHG \
  | 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: a8968d4fc282dad5cb96e953dc311239995a9d7b0d69b2e8d879d9f216520a04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e37c634666a5e552b8cb29d93a59da63531588ba69a447ea40978a2d5c17e7a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-12T14:26:41Z",
    "title_canon_sha256": "9031d276f30287955ea663b4fe1d7a04abc512c27864c9b5f98772e417e1ab81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1835",
    "kind": "arxiv",
    "version": 1
  }
}