Pith Number

pith:DBS3VSB2

pith:2001:DBS3VSB2YTX6QH6IUVGIPTNCHF

not attested not anchored not stored refs pending

Luminosity and mass function of galactic open clusters: I. NGC 4815

A. Seleznev (Ekaterinburg), G. Carraro (Padova), G. Piotto (Padova), I. Saviane (UCLA), L. Prisinzano (Palermo), P.B. Stetson (Victoria)

arxiv:astro-ph/0101371 v1 · 2001-01-22 · 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{DBS3VSB2YTX6QH6IUVGIPTNCHF}

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	2026-07-04T16:22:36.205435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1865bac83ac4efe81fc8a54c87cda2396a609d23446edcce38e09cc2eea0ce1f

Aliases

arxiv: astro-ph/0101371 · arxiv_version: astro-ph/0101371v1 · doi: 10.48550/arxiv.astro-ph/0101371 · pith_short_12: DBS3VSB2YTX6 · pith_short_16: DBS3VSB2YTX6QH6I · pith_short_8: DBS3VSB2

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/DBS3VSB2YTX6QH6IUVGIPTNCHF \
  | 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: 1865bac83ac4efe81fc8a54c87cda2396a609d23446edcce38e09cc2eea0ce1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebc4459c4f7013e901144d346635fed21d7c570156773f94c07c58eba3d69658",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-01-22T09:09:34Z",
    "title_canon_sha256": "b98ed5352e0d5973741efeb5ecdcf08a46bfc2f7f6c2b9e6f8a2d81560959209"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0101371",
    "kind": "arxiv",
    "version": 1
  }
}