Pith Number

pith:47667ZHT

pith:2004:47667ZHT6PFQAHJ5YFNI2QKLNU

not attested not anchored not stored refs pending

Twistor Forms on Riemannian Products

Andrei Moroianu (CMLS-EcolePolytechnique), Uwe Semmelmann (FM)

arxiv:math/0407063 v3 · 2004-07-05 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{47667ZHT6PFQAHJ5YFNI2QKLNU}

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	2026-05-17T23:56:49.201473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7fdefe4f3f3cb001d3dc15a8d414b6d27d8306d6a6c4d7c46c7db613fd67753

Aliases

arxiv: math/0407063 · arxiv_version: math/0407063v3 · doi: 10.48550/arxiv.math/0407063 · pith_short_12: 47667ZHT6PFQ · pith_short_16: 47667ZHT6PFQAHJ5 · pith_short_8: 47667ZHT

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/47667ZHT6PFQAHJ5YFNI2QKLNU \
  | 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: e7fdefe4f3f3cb001d3dc15a8d414b6d27d8306d6a6c4d7c46c7db613fd67753

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc676f81eee5ca2a9173de6326fde47fcb4a262a0106676627010ea4dcf4becc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2004-07-05T13:04:46Z",
    "title_canon_sha256": "18a629d63fee0a9e96b0a2edc3bc00dd7555314638706210082ed4dd14f7bed5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0407063",
    "kind": "arxiv",
    "version": 3
  }
}