Pith Number

pith:QMNJD7I7

pith:2000:QMNJD7I7XSIQ4OB3NFOIEDIPZL

not attested not anchored not stored refs pending

Do strange stars exist in the Universe?

Ignazio Bombaci (Dipartimento di Fisica Universita' di Pisa, INFN Sezione di Pisa)

arxiv:astro-ph/0002524 v1 · 2000-02-29 · astro-ph · hep-ph · nucl-ex · nucl-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMNJD7I7XSIQ4OB3NFOIEDIPZL}

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	2026-05-18T01:21:50.575362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

831a91fd1fbc910e383b695c820d0fcae3e146ff1243fdc58810b2a1f4477bf0

Aliases

arxiv: astro-ph/0002524 · arxiv_version: astro-ph/0002524v1 · doi: 10.48550/arxiv.astro-ph/0002524 · pith_short_12: QMNJD7I7XSIQ · pith_short_16: QMNJD7I7XSIQ4OB3 · pith_short_8: QMNJD7I7

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/QMNJD7I7XSIQ4OB3NFOIEDIPZL \
  | 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: 831a91fd1fbc910e383b695c820d0fcae3e146ff1243fdc58810b2a1f4477bf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9430d0fe290cd197ec10fb225ad5dcb549177fa3a1358dc35389e219b716fb0d",
    "cross_cats_sorted": [
      "hep-ph",
      "nucl-ex",
      "nucl-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-29T17:31:37Z",
    "title_canon_sha256": "9414d3f1942777a221368a077401f5336ac43722e97d509d6daf66f51d6bfab8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002524",
    "kind": "arxiv",
    "version": 1
  }
}