Pith Number

pith:NCOG3KD6

pith:2003:NCOG3KD6BDHOSVGN4IZ4IWQD2G

not attested not anchored not stored refs pending

Heavy quarks or compactified extra dimensions in the core of hybrid stars

B. Lukacs, G.G. Barnafoldi, P. Levai

arxiv:astro-ph/0312330 v1 · 2003-12-12 · 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{NCOG3KD6BDHOSVGN4IZ4IWQD2G}

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	2026-05-18T00:37:00.697392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

689c6da87e08cee954cde233c45a03d1ad511fb21628ab157f4a314612c39318

Aliases

arxiv: astro-ph/0312330 · arxiv_version: astro-ph/0312330v1 · doi: 10.48550/arxiv.astro-ph/0312330 · pith_short_12: NCOG3KD6BDHO · pith_short_16: NCOG3KD6BDHOSVGN · pith_short_8: NCOG3KD6

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/NCOG3KD6BDHOSVGN4IZ4IWQD2G \
  | 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: 689c6da87e08cee954cde233c45a03d1ad511fb21628ab157f4a314612c39318

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db20eb39f44f5c2c4194943af270bf08aa6037881c1ae619e903c44e2a153595",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-12T15:21:26Z",
    "title_canon_sha256": "01be57621fb343af9586431b025d6f7f718ddcababf6a38730118dfef56f4500"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312330",
    "kind": "arxiv",
    "version": 1
  }
}