Pith Number

pith:6NYSKUIA

pith:2004:6NYSKUIAOA6DWAEOAD6Y33FRF3

not attested not anchored not stored refs pending

On the determination of age and mass functions of stars in young open star clusters from the analysis of their luminosity functions

(2) Main Astronomical Observatory, (3) State Observatory, 4), (4) Indian Institute of Astrophysics, A.E.Piskunov (1), A.N.Belikov (1), A.Subramaniam (4) ((1) Institute of Astronomy of the Russian Acad. Sci., Bangalore, India, India), Kiev, Moscow, Nainital, N.V.Kharchenko (2), R.Sagar (3, Russia, Ukraine

arxiv:astro-ph/0401587 v1 · 2004-01-28 · 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{6NYSKUIAOA6DWAEOAD6Y33FRF3}

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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	2026-07-04T16:42:56.014296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f371255100703c3b008e00fd8decb12edb3e956e491600cc8326bba7ac4ca84f

Aliases

arxiv: astro-ph/0401587 · arxiv_version: astro-ph/0401587v1 · doi: 10.48550/arxiv.astro-ph/0401587 · pith_short_12: 6NYSKUIAOA6D · pith_short_16: 6NYSKUIAOA6DWAEO · pith_short_8: 6NYSKUIA

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/6NYSKUIAOA6DWAEOAD6Y33FRF3 \
  | 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: f371255100703c3b008e00fd8decb12edb3e956e491600cc8326bba7ac4ca84f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60319ef87e77bcdc78b36b624ddf5198f0f8f779ee01153d9747f7afefab5b32",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-28T08:43:42Z",
    "title_canon_sha256": "0569c8111c9fa95dbc7b8864a8644cf7b8776eb9b56e8fba81aeb16f2fd295fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401587",
    "kind": "arxiv",
    "version": 1
  }
}