Pith Number

pith:ERSKA7LD

pith:2009:ERSKA7LD36MXVKKE2NQL5HTEJ4

not attested not anchored not stored refs pending

Abelian extensions via prequantization

Cornelia Vizman

arxiv:0910.3906 v2 · 2009-10-20 · math.DG · 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{ERSKA7LD36MXVKKE2NQL5HTEJ4}

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	2026-05-18T04:08:13.664636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2464a07d63df997aa944d360be9e644f2aa882f992f70d045297561f0ffa0f11

Aliases

arxiv: 0910.3906 · arxiv_version: 0910.3906v2 · doi: 10.48550/arxiv.0910.3906 · pith_short_12: ERSKA7LD36MX · pith_short_16: ERSKA7LD36MXVKKE · pith_short_8: ERSKA7LD

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/ERSKA7LD36MXVKKE2NQL5HTEJ4 \
  | 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: 2464a07d63df997aa944d360be9e644f2aa882f992f70d045297561f0ffa0f11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "750294dc0bb44ba91ed53d3b76b0e4968cb1f833ace4b7bd40f14b4eca8b960a",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-10-20T16:48:24Z",
    "title_canon_sha256": "6cab7991ef9b176d831689925c3a5eb5c82d801e428f8d717dbed376b3984464"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3906",
    "kind": "arxiv",
    "version": 2
  }
}