Pith Number

pith:DVNBEGDE

pith:2008:DVNBEGDECNKTQK3CTRM4E57EBN

not attested not anchored not stored refs pending

LTB solutions in Newtonian gauge: from strong to weak fields

Karel Van Acoleyen

arxiv:0808.3554 v2 · 2008-08-26 · gr-qc · astro-ph · hep-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{DVNBEGDECNKTQK3CTRM4E57EBN}

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	2026-07-04T15:29:13.275304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d5a1218641355382b629c59c277e40b4c8bbb311bc06efb406b8e5350168c86

Aliases

arxiv: 0808.3554 · arxiv_version: 0808.3554v2 · doi: 10.48550/arxiv.0808.3554 · pith_short_12: DVNBEGDECNKT · pith_short_16: DVNBEGDECNKTQK3C · pith_short_8: DVNBEGDE

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/DVNBEGDECNKTQK3CTRM4E57EBN \
  | 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: 1d5a1218641355382b629c59c277e40b4c8bbb311bc06efb406b8e5350168c86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91f2af5149b772d7454d3f680397baea03641cb618bfd8593f9d2654fcf8ec21",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-08-26T16:34:24Z",
    "title_canon_sha256": "4d7a4c64537a382dd714c862f5b383a1c65a391f8423310c56d66ee48500fd49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.3554",
    "kind": "arxiv",
    "version": 2
  }
}