Pith Number

pith:D6FG6AXW

pith:2009:D6FG6AXW2BGEIW53N5PGQZKFA4

not attested not anchored not stored refs pending

A Spitzer View of the Young Open Cluster NGC 2264

ANU, Australia), Caltech, Hwankyung Sung (Sejong Univ., Korea) John R. Stauffer (SSC, USA) Mike S. Bessell (MSSSO

arxiv:0906.3072 v1 · 2009-06-17 · 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{D6FG6AXW2BGEIW53N5PGQZKFA4}

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	2026-05-18T02:13:19.561998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f8a6f02f6d04c445bbb6f5e68654507125811a85575e7c4f152ec73350762ca

Aliases

arxiv: 0906.3072 · arxiv_version: 0906.3072v1 · doi: 10.48550/arxiv.0906.3072 · pith_short_12: D6FG6AXW2BGE · pith_short_16: D6FG6AXW2BGEIW53 · pith_short_8: D6FG6AXW

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/D6FG6AXW2BGEIW53N5PGQZKFA4 \
  | 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: 1f8a6f02f6d04c445bbb6f5e68654507125811a85575e7c4f152ec73350762ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c49132d100c43b534bacb6a852f08d2b279368b27a77c03a1d48b07ba8bc0b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-06-17T05:36:16Z",
    "title_canon_sha256": "c9e6de87f114175ab99cf734764cb4cc8a1f91bb03997699f0dede1bd91ab667"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3072",
    "kind": "arxiv",
    "version": 1
  }
}