Pith Number

pith:MZRD4FDF

pith:2003:MZRD4FDFRGXND3LMQHMJOBQ5MY

not attested not anchored not stored refs pending

Intermediate age open clusters: Collinder 110

Angela Bragaglia, Monica Tosi (INAF - Oss. Astron. Bologna)

arxiv:astro-ph/0303662 v1 · 2003-03-31 · 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{MZRD4FDFRGXND3LMQHMJOBQ5MY}

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	2026-07-04T16:36:46.084873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66623e146589aed1ed6c81d897061d6636a22ffe56b246bdbb6dec6d8934a9e5

Aliases

arxiv: astro-ph/0303662 · arxiv_version: astro-ph/0303662v1 · doi: 10.48550/arxiv.astro-ph/0303662 · pith_short_12: MZRD4FDFRGXN · pith_short_16: MZRD4FDFRGXND3LM · pith_short_8: MZRD4FDF

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/MZRD4FDFRGXND3LMQHMJOBQ5MY \
  | 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: 66623e146589aed1ed6c81d897061d6636a22ffe56b246bdbb6dec6d8934a9e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29bda041d8e0c825601b95455809c1f8c9d380d746812952ac330abadbbeff43",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-31T12:56:05Z",
    "title_canon_sha256": "4271426bc8c094aaaae12449d6970701f8a5013e680e90b094f5f8b71f3e7840"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303662",
    "kind": "arxiv",
    "version": 1
  }
}