Pith Number

pith:R7DEDN5L

pith:2008:R7DEDN5LT5DSCFGYS3YBGRQHCQ

not attested not anchored not stored refs pending

On the existence of star products on quotient spaces of linear Hamiltonian torus actions

Hans-Christian Herbig, Markus J. Pflaum, Srikanth B. Iyengar

arxiv:0811.2152 v1 · 2008-11-13 · math.QA · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R7DEDN5LT5DSCFGYS3YBGRQHCQ}

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	2026-05-18T02:15:21.235258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fc641b7ab9f472114d896f0134607143efff68aa571efd647cf4200c6464878

Aliases

arxiv: 0811.2152 · arxiv_version: 0811.2152v1 · doi: 10.48550/arxiv.0811.2152 · pith_short_12: R7DEDN5LT5DS · pith_short_16: R7DEDN5LT5DSCFGY · pith_short_8: R7DEDN5L

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/R7DEDN5LT5DSCFGYS3YBGRQHCQ \
  | 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: 8fc641b7ab9f472114d896f0134607143efff68aa571efd647cf4200c6464878

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb71efa654ac467a6ebc4c81b8262e67227f81976965d811729e046e00d809af",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2008-11-13T16:02:40Z",
    "title_canon_sha256": "04066e8324ba5a6971967eb01e5667e9d5e4bc2755051e2080b52f05e652fa50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2152",
    "kind": "arxiv",
    "version": 1
  }
}