Pith Number

pith:EUNKD2ZE

pith:2008:EUNKD2ZEIZFEVVU4LN6X4QXDTY

not attested not anchored not stored refs pending

ACS imaging of star clusters in M51 II. The luminosity function and mass function across the disk

H.J.G.L.M. Lamers, M. Gieles, M.R. Haas, R.A. Scheepmaker, S.S. Larsen

arxiv:0806.3752 v2 · 2008-06-23 · 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{EUNKD2ZEIZFEVVU4LN6X4QXDTY}

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	2026-05-18T03:54:39.728752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

251aa1eb24464a4ad69c5b7d7e42e39e15218f84bc7bcac91c45127287b7facf

Aliases

arxiv: 0806.3752 · arxiv_version: 0806.3752v2 · doi: 10.48550/arxiv.0806.3752 · pith_short_12: EUNKD2ZEIZFE · pith_short_16: EUNKD2ZEIZFEVVU4 · pith_short_8: EUNKD2ZE

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/EUNKD2ZEIZFEVVU4LN6X4QXDTY \
  | 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: 251aa1eb24464a4ad69c5b7d7e42e39e15218f84bc7bcac91c45127287b7facf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a2ee97a9bb6daea79396ad21c9bfbd7da8e3681d382d6da8f70eb0da7b4d3d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-23T20:04:11Z",
    "title_canon_sha256": "23ba50d2083f9f672b91520ad27fd8f195736dd8eafe3a5dbb94013b3aad1a1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.3752",
    "kind": "arxiv",
    "version": 2
  }
}