Pith Number

pith:GRW2SDRS

pith:2013:GRW2SDRSLPFNZBUVHP36QAGUIL

not attested not anchored not stored refs pending

The affine-null metric formulation of Einstein's equations

J. Winicour

arxiv:1303.6969 v2 · 2013-03-27 · 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{GRW2SDRSLPFNZBUVHP36QAGUIL}

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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.

Cited by

1 paper in Pith

Conformal compactification and affine-null metric formulation of the Einstein equations

Receipt and verification

First computed	2026-05-18T01:50:51.747244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

346da90e325bcadc86953bf7e800d442cd712d5579c594840f1d113938596bde

Aliases

arxiv: 1303.6969 · arxiv_version: 1303.6969v2 · doi: 10.48550/arxiv.1303.6969 · pith_short_12: GRW2SDRSLPFN · pith_short_16: GRW2SDRSLPFNZBUV · pith_short_8: GRW2SDRS

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/GRW2SDRSLPFNZBUVHP36QAGUIL \
  | 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: 346da90e325bcadc86953bf7e800d442cd712d5579c594840f1d113938596bde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68df318dfe70db8c26692d968ee4380116dba5d451249b537734169d0f852063",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-03-27T20:08:46Z",
    "title_canon_sha256": "c3d6d7667ba6aba70c46de3fee9792a417fbafc371f48066eb9c827f4244f7ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6969",
    "kind": "arxiv",
    "version": 2
  }
}