Pith Number

pith:WHXBITS7

pith:2010:WHXBITS746FIKNFLSMUBJ642HO

not attested not anchored not stored refs pending

The evolution of luminosity, colour and the mass-to-luminosity ratio of Galactic open clusters: comparison of discrete vs. continuous IMF models

A. E. Piskunov, E. Schilbach, H. Zinnecker, N. V. Kharchenko, R.-D. Scholz, S. R\"oser

arxiv:1010.2309 v1 · 2010-10-12 · 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{WHXBITS746FIKNFLSMUBJ642HO}

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	2026-05-18T01:09:22.186714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1ee144e5fe78a8534ab932814fb9a3b80f29f697921b2ff8419fbe64640cbe3

Aliases

arxiv: 1010.2309 · arxiv_version: 1010.2309v1 · doi: 10.48550/arxiv.1010.2309 · pith_short_12: WHXBITS746FI · pith_short_16: WHXBITS746FIKNFL · pith_short_8: WHXBITS7

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/WHXBITS746FIKNFLSMUBJ642HO \
  | 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: b1ee144e5fe78a8534ab932814fb9a3b80f29f697921b2ff8419fbe64640cbe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "404d47d624ca15f847ae85774d0086a04805cb09188756ebb802db614f4edd36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-10-12T07:30:17Z",
    "title_canon_sha256": "3866860ec23d677350649878e5069efbf1cc03ffedd0e8c2c1b8ff8527f16357"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2309",
    "kind": "arxiv",
    "version": 1
  }
}