Pith Number

pith:H6HYC4LM

pith:2009:H6HYC4LMKA73JS6LKFURZW776J

not attested not anchored not stored refs pending

Model-Independent Diagnostics of Highly Reddened Milky Way Star Clusters: Age Calibration

Giovanni Carraro (ESO-Chile), Valentin D. Ivanov (ESO-Chile), Yuri Beletsky (ESO-Chile)

arxiv:0908.2866 v1 · 2009-08-20 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6HYC4LMKA73JS6LKFURZW776J}

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	2026-05-18T02:12:24.846390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f8f81716c503fb4cbcb51691cdbfff252e410d1f80130af439efd289563c172

Aliases

arxiv: 0908.2866 · arxiv_version: 0908.2866v1 · doi: 10.48550/arxiv.0908.2866 · pith_short_12: H6HYC4LMKA73 · pith_short_16: H6HYC4LMKA73JS6L · pith_short_8: H6HYC4LM

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/H6HYC4LMKA73JS6LKFURZW776J \
  | 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: 3f8f81716c503fb4cbcb51691cdbfff252e410d1f80130af439efd289563c172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04f3c3ad56b348de85968d8ac7e3b482a86c3b4926e6ce0cfd5d1f07ccdea5f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-20T07:34:25Z",
    "title_canon_sha256": "89bd42e0cc40d6020f6d24b5ff3d67dc7db8b684e54548eec4ce6560e1998130"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2866",
    "kind": "arxiv",
    "version": 1
  }
}