Pith Number

pith:MJHUANZO

pith:2013:MJHUANZOGBTEFMR33L6JEMVRER

not attested not anchored not stored refs pending

Minimal extension of General Relativity: alternative gravity model with non-minimal coupling between matter and curvature

Jorge P\'aramos, Orfeu Bertolami

arxiv:1309.0292 v2 · 2013-09-02 · 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{MJHUANZOGBTEFMR33L6JEMVRER}

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	2026-05-18T03:01:56.169489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

624f40372e306642b23bdafc9232b12474589780211147560dffcffe90eeb6fc

Aliases

arxiv: 1309.0292 · arxiv_version: 1309.0292v2 · doi: 10.48550/arxiv.1309.0292 · pith_short_12: MJHUANZOGBTE · pith_short_16: MJHUANZOGBTEFMR3 · pith_short_8: MJHUANZO

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/MJHUANZOGBTEFMR33L6JEMVRER \
  | 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: 624f40372e306642b23bdafc9232b12474589780211147560dffcffe90eeb6fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea903f46ebd95efad1866135be15665150fc24f38ac823f3ba7e156485b194d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-09-02T02:46:40Z",
    "title_canon_sha256": "36883fc5ff5858a20996bfdf9bd50ddf24df9d8194a4f9671887f9f8b1e75666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0292",
    "kind": "arxiv",
    "version": 2
  }
}