Pith Number

pith:ZSH3XGA5

pith:2002:ZSH3XGA5YZXGGIU5CFXUVK7RHY

not attested not anchored not stored refs pending

Reductive G-structures and Lie derivatives

Marco Godina, Paolo Matteucci

arxiv:math/0201235 v2 · 2002-01-24 · math.DG · 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{ZSH3XGA5YZXGGIU5CFXUVK7RHY}

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	2026-05-18T01:38:29.709432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc8fbb981dc66e63229d116f4aabf13e34df28bc3df640fac9f48d72a142dc08

Aliases

arxiv: math/0201235 · arxiv_version: math/0201235v2 · doi: 10.48550/arxiv.math/0201235 · pith_short_12: ZSH3XGA5YZXG · pith_short_16: ZSH3XGA5YZXGGIU5 · pith_short_8: ZSH3XGA5

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/ZSH3XGA5YZXGGIU5CFXUVK7RHY \
  | 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: cc8fbb981dc66e63229d116f4aabf13e34df28bc3df640fac9f48d72a142dc08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "129040e7c2532baa62ab0e6efb718798a923e5ed7b723e1622507f3931903eaf",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2002-01-24T15:00:00Z",
    "title_canon_sha256": "610c53682111ce199671c93b6465027e39f44e6d0feac386076a9c8d6c42f074"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0201235",
    "kind": "arxiv",
    "version": 2
  }
}