Pith Number

pith:6DPNO6OS

pith:2002:6DPNO6OSEBZDU4AZKWC6JO6MFA

not attested not anchored not stored refs pending

Maximum bounds on the surface redshift of anisotropic stars

B.V.Ivanov

arxiv:gr-qc/0201090 v2 · 2002-01-29 · gr-qc · 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{6DPNO6OSEBZDU4AZKWC6JO6MFA}

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.

Cited by

1 paper in Pith

Beyond Buchdahl's limit: bilayered stars and thin-shell configurations

Receipt and verification

First computed	2026-07-04T16:33:35.180287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0ded779d220723a70195585e4bbcc283422f997a4c81a5588d0152c397db6b4

Aliases

arxiv: gr-qc/0201090 · arxiv_version: gr-qc/0201090v2 · doi: 10.48550/arxiv.gr-qc/0201090 · pith_short_12: 6DPNO6OSEBZD · pith_short_16: 6DPNO6OSEBZDU4AZ · pith_short_8: 6DPNO6OS

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/6DPNO6OSEBZDU4AZKWC6JO6MFA \
  | 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: f0ded779d220723a70195585e4bbcc283422f997a4c81a5588d0152c397db6b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71da03907c5eecdac459f809f37f2bc450287b3ccd5d386fe815297a6d1b5d06",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-01-29T10:54:52Z",
    "title_canon_sha256": "badcef438f2fda278398317f05927e5e07165772b042b8911032f596c871cfa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0201090",
    "kind": "arxiv",
    "version": 2
  }
}