Pith Number

pith:6O3ZPPVN

pith:2012:6O3ZPPVNQZOZ3I6YVHEVBEXCTX

not attested not anchored not stored refs pending

Factorization of Rational Curves in the Study Quadric and Revolute Linkages

G\'abor Heged\"us, Hans-Peter Schr\"ocker, Josef Schicho

arxiv:1202.0139 v4 · 2012-02-01 · math.RA · cs.RO · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6O3ZPPVNQZOZ3I6YVHEVBEXCTX}

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	2026-05-18T03:19:35.436512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3b797bead865d9da3d8a9c95092e29dc0e98c69fce4bc933477c1bcac3280d6

Aliases

arxiv: 1202.0139 · arxiv_version: 1202.0139v4 · doi: 10.48550/arxiv.1202.0139 · pith_short_12: 6O3ZPPVNQZOZ · pith_short_16: 6O3ZPPVNQZOZ3I6Y · pith_short_8: 6O3ZPPVN

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/6O3ZPPVNQZOZ3I6YVHEVBEXCTX \
  | 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: f3b797bead865d9da3d8a9c95092e29dc0e98c69fce4bc933477c1bcac3280d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aa42895dbf3071d7a179a69a3def20ad155339d292a2988fa5b3f0dfd8a1fd5",
    "cross_cats_sorted": [
      "cs.RO",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2012-02-01T10:36:30Z",
    "title_canon_sha256": "3aeb3038c58b6c7b8e3fcd809029c66dfbf8b9d1e48121ad519f430012c17df4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0139",
    "kind": "arxiv",
    "version": 4
  }
}