Pith Number

pith:HTKQQ3ZN

pith:2009:HTKQQ3ZNSXFK2EPAQGBICCIBTQ

not attested not anchored not stored refs pending

First Class Constrained Systems and Twisting of Courant Algebroids by a Closed 4-form

Markus Hansen, Thomas Strobl

arxiv:0904.0711 v1 · 2009-04-04 · hep-th · math-ph · math.DG · 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{HTKQQ3ZNSXFK2EPAQGBICCIBTQ}

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

Q-Manifolds and Sigma Models

Receipt and verification

First computed	2026-05-18T00:54:42.291904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cd5086f2d95caad11e081828109019c30898db9e74d968b00618595244396f3

Aliases

arxiv: 0904.0711 · arxiv_version: 0904.0711v1 · doi: 10.48550/arxiv.0904.0711 · pith_short_12: HTKQQ3ZNSXFK · pith_short_16: HTKQQ3ZNSXFK2EPA · pith_short_8: HTKQQ3ZN

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/HTKQQ3ZNSXFK2EPAQGBICCIBTQ \
  | 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: 3cd5086f2d95caad11e081828109019c30898db9e74d968b00618595244396f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9f02167a92fae93aca77b2f9ce8e6a0702296aee9a8c7909341378f0a556d42",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-04T13:50:44Z",
    "title_canon_sha256": "5daeb3c723e76e25a257cc173e5c9b2b7756c135c4ca347d5a7dc7cab54629f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0711",
    "kind": "arxiv",
    "version": 1
  }
}