Pith Number

pith:GUD4EZNA

pith:2001:GUD4EZNAC5M3GQYYGELT7QAQVJ

not attested not anchored not stored refs pending

The Newtonian limit of fourth and higher order gravity

H.-J. Schmidt, Ines Quandt

arxiv:gr-qc/0109005 v1 · 2001-09-04 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GUD4EZNAC5M3GQYYGELT7QAQVJ}

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	2026-05-18T01:39:24.092025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3507c265a01759b3431831173fc010aa4f7c405fb41ab2290cb181b9f728c275

Aliases

arxiv: gr-qc/0109005 · arxiv_version: gr-qc/0109005v1 · doi: 10.48550/arxiv.gr-qc/0109005 · pith_short_12: GUD4EZNAC5M3 · pith_short_16: GUD4EZNAC5M3GQYY · pith_short_8: GUD4EZNA

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/GUD4EZNAC5M3GQYYGELT7QAQVJ \
  | 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: 3507c265a01759b3431831173fc010aa4f7c405fb41ab2290cb181b9f728c275

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1499894f6857cb6be359ce51ce9d1dbbc69efadcb9ddcc93bb7bd35c6dc51914",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-09-04T07:29:08Z",
    "title_canon_sha256": "b0524e6373364452923102eb5297e6047c04b7391da432bb750cf1c1cfd556ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0109005",
    "kind": "arxiv",
    "version": 1
  }
}