Pith Number

pith:CFMZIQKQ

pith:2002:CFMZIQKQKHEMKDG7OQX6EQOWSR

not attested not anchored not stored refs pending

On types of non-integrable geometries

Thomas Friedrich (Berlin)

arxiv:math/0205149 v1 · 2002-05-14 · math.DG · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CFMZIQKQKHEMKDG7OQX6EQOWSR}

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.

Cited by

1 paper in Pith

Dynamics of Cayley Forms

Receipt and verification

First computed	2026-07-04T14:36:12.297502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

115994415051c8c50cdf742fe241d6944d9942d9ebf290f86453337b8e6ffff7

Aliases

arxiv: math/0205149 · arxiv_version: math/0205149v1 · doi: 10.48550/arxiv.math/0205149 · pith_short_12: CFMZIQKQKHEM · pith_short_16: CFMZIQKQKHEMKDG7 · pith_short_8: CFMZIQKQ

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/CFMZIQKQKHEMKDG7OQX6EQOWSR \
  | 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: 115994415051c8c50cdf742fe241d6944d9942d9ebf290f86453337b8e6ffff7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb0e33670eadeb337eae016bf33bedbb3a5019da28f1a71d9e614c2ae4911907",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2002-05-14T10:18:35Z",
    "title_canon_sha256": "a6621031dbc1cf12c638ea06b5690870d63278bc33d5cecb95762b3247c1412e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0205149",
    "kind": "arxiv",
    "version": 1
  }
}