Pith Number

pith:UCZJ7PMR

pith:2005:UCZJ7PMRTVWPECZBEXELM4NOSH

not attested not anchored not stored refs pending

Bi-conformal vector fields and the local geometric characterization of conformally separable (double-twisted) pseudo-Riemannian manifolds

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

arxiv:math/0504162 v2 · 2005-04-08 · math.DG · gr-qc · math-ph · 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{UCZJ7PMRTVWPECZBEXELM4NOSH}

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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	2026-05-18T01:08:51.212374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0b29fbd919d6cf20b2125c8b671ae91c0eab4d67e55a924cdda50c01d6fcc3b

Aliases

arxiv: math/0504162 · arxiv_version: math/0504162v2 · doi: 10.48550/arxiv.math/0504162 · pith_short_12: UCZJ7PMRTVWP · pith_short_16: UCZJ7PMRTVWPECZB · pith_short_8: UCZJ7PMR

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/UCZJ7PMRTVWPECZBEXELM4NOSH \
  | 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: a0b29fbd919d6cf20b2125c8b671ae91c0eab4d67e55a924cdda50c01d6fcc3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f78b29d4f8ee01a955673e4cdc45299395a7465bc42807545646d6d7efb1cbb",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2005-04-08T07:20:58Z",
    "title_canon_sha256": "236c41a5313df3165ee1536202dbb19db925741e107b1017ee75608665d138fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0504162",
    "kind": "arxiv",
    "version": 2
  }
}