Pith Number

pith:7VTWPBIR

pith:1993:7VTWPBIRJZXZUNQLSPALPC6QRP

not attested not anchored not stored refs pending

On Physical Equivalence between Nonlinear Gravity Theories

Guido Magnano, Leszek M. Sokolowski

arxiv:gr-qc/9312008 v1 · 1993-12-03 · gr-qc

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

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

Could a so far ignored symmetry of the classical laws of gravity explain the cosmological puzzles?

Receipt and verification

First computed	2026-05-18T04:37:57.369621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd676785114e6f9a360b93c0b78bd08bc960187e1a306e594d3e9befbbe48a18

Aliases

arxiv: gr-qc/9312008 · arxiv_version: gr-qc/9312008v1 · doi: 10.48550/arxiv.gr-qc/9312008 · pith_short_12: 7VTWPBIRJZXZ · pith_short_16: 7VTWPBIRJZXZUNQL · pith_short_8: 7VTWPBIR

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/7VTWPBIRJZXZUNQLSPALPC6QRP \
  | 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: fd676785114e6f9a360b93c0b78bd08bc960187e1a306e594d3e9befbbe48a18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8674dd1cb174361b228f51ba45516fe40d225551cff49168a9743453af137b59",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-12-03T18:01:47Z",
    "title_canon_sha256": "12d3ce6423133862aad755b8c48f332df3219766f893ecbbac957ab6a877a581"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9312008",
    "kind": "arxiv",
    "version": 1
  }
}