pith. sign in
Pith Number

pith:SAZZZTP4

pith:2018:SAZZZTP4FQOT6WTJX7A2UPX5W2
not attested not anchored not stored refs pending

General Relativity as a Hybrid theory: The Genesis of Einstein's work on the problem of motion

Dennis Lehmkuhl

arxiv:1803.09872 v1 · 2018-03-27 · gr-qc · physics.hist-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{SAZZZTP4FQOT6WTJX7A2UPX5W2}

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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 2026-05-18T00:20:07.999969Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

90339ccdfc2c1d3f5a69bfc1aa3efdb6bd92369b63baa56960b58cfdc9334448

Aliases

arxiv: 1803.09872 · arxiv_version: 1803.09872v1 · doi: 10.48550/arxiv.1803.09872 · pith_short_12: SAZZZTP4FQOT · pith_short_16: SAZZZTP4FQOT6WTJ · pith_short_8: SAZZZTP4
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/SAZZZTP4FQOT6WTJX7A2UPX5W2 \
  | 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: 90339ccdfc2c1d3f5a69bfc1aa3efdb6bd92369b63baa56960b58cfdc9334448
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "dce7165e872921a3dec5a6cc14ad5eb21240212adeb4f1e9117fbc657a817680",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-03-27T03:17:01Z",
    "title_canon_sha256": "9d4ae7127df3d58daa781384a05e4fe523a57b1549f008b607247f894367542a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09872",
    "kind": "arxiv",
    "version": 1
  }
}