pith. sign in
Pith Number

pith:MAOCRN25

pith:2016:MAOCRN25P7ACV5XIX3G2UMWGM5
not attested not anchored not stored refs pending

Variational techniques in general relativity: A metric-affine approach to Kaluza's theory

Enrico Massa, Stefano Vignolo

arxiv:1609.07447 v1 · 2016-09-23 · math-ph · gr-qc · math.MP

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{MAOCRN25P7ACV5XIX3G2UMWGM5}

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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 2026-05-18T01:04:00.837680Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

601c28b75d7fc02af6e8becdaa32c66754e2eab5f4c91f55965f6d9404ddf2a7

Aliases

arxiv: 1609.07447 · arxiv_version: 1609.07447v1 · doi: 10.48550/arxiv.1609.07447 · pith_short_12: MAOCRN25P7AC · pith_short_16: MAOCRN25P7ACV5XI · pith_short_8: MAOCRN25
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/MAOCRN25P7ACV5XIX3G2UMWGM5 \
  | 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: 601c28b75d7fc02af6e8becdaa32c66754e2eab5f4c91f55965f6d9404ddf2a7
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "17eb28c481b29b6fa30c454fa044a0b35c8c1cbe7174bb3234e727aef6281d4a",
    "cross_cats_sorted": [
      "gr-qc",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2016-09-23T17:47:19Z",
    "title_canon_sha256": "5f3472baa32451617a5b4c68a1a887318a2295cec10743d330874f618888ae8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07447",
    "kind": "arxiv",
    "version": 1
  }
}