Pith Number

pith:EY2QRV7E

pith:2004:EY2QRV7EXSEZCAAPXITSGVQG6B

not attested not anchored not stored refs pending

Bi-conformal vector fields and their applications to the characterization of conformally separable pseudo-Riemannian manifolds: New criteria for the existence of conformally flat foliations in pseudo-Riemannian manifolds

Alfonso Garc\'ia-Parrado G\'omez-Lobo

arxiv:math-ph/0409037 v1 · 2004-09-17 · math-ph · gr-qc · math.DG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EY2QRV7EXSEZCAAPXITSGVQG6B}

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	2026-05-18T01:08:53.296081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

263508d7e4bc8991000fba27235606f07317bb67a127dd547a474f80024c9051

Aliases

arxiv: math-ph/0409037 · arxiv_version: math-ph/0409037v1 · doi: 10.48550/arxiv.math-ph/0409037 · pith_short_12: EY2QRV7EXSEZ · pith_short_16: EY2QRV7EXSEZCAAP · pith_short_8: EY2QRV7E

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/EY2QRV7EXSEZCAAPXITSGVQG6B \
  | 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: 263508d7e4bc8991000fba27235606f07317bb67a127dd547a474f80024c9051

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbeee9bdb51815a30789361b5bc2680ae92784611e8bc6fd157f6979c91ca692",
    "cross_cats_sorted": [
      "gr-qc",
      "math.DG",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math-ph",
    "submitted_at": "2004-09-17T16:29:05Z",
    "title_canon_sha256": "c45695e5ecc56fff4ce7b852e9c15e8f10016b9bfe01ed0c7fa0c926c2947c39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math-ph/0409037",
    "kind": "arxiv",
    "version": 1
  }
}