Pith Number

pith:HHCOPLDR

pith:2014:HHCOPLDRD5MA3Q3AYY5BF3F3UW

not attested not anchored not stored refs pending

Deriving physical parameters of unresolved star clusters. II. The degeneracies of age, mass, extinction, and metallicity

Donatas Narbutis, Philippe de Meulenaer, Tadas Mineikis, Vladas Vansevi\v{c}ius

arxiv:1407.4643 v1 · 2014-07-17 · astro-ph.SR · 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{HHCOPLDRD5MA3Q3AYY5BF3F3UW}

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	2026-05-18T02:43:10.590774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39c4e7ac711f580dc360c63a12ecbba5821f477c2d4d80abc47aa8bfbf6a7dec

Aliases

arxiv: 1407.4643 · arxiv_version: 1407.4643v1 · doi: 10.48550/arxiv.1407.4643 · pith_short_12: HHCOPLDRD5MA · pith_short_16: HHCOPLDRD5MA3Q3A · pith_short_8: HHCOPLDR

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/HHCOPLDRD5MA3Q3AYY5BF3F3UW \
  | 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: 39c4e7ac711f580dc360c63a12ecbba5821f477c2d4d80abc47aa8bfbf6a7dec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d50c18351e6e68f72c820069c2ac5e11818dc6031ff06ba3bca9a3c39bf7b1d7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-07-17T11:48:26Z",
    "title_canon_sha256": "e0245df2677a094606b6c9df14450169215dc1adecdebedaf1ec0ed22256456f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4643",
    "kind": "arxiv",
    "version": 1
  }
}