Pith Number

pith:3NQACPSL

pith:2009:3NQACPSLETWQGMYANIAL3PAN52

not attested not anchored not stored refs pending

On Character varieties of two-bridge knot groups

Kathleen L. Petersen, Melissa L. Macasieb, Ronald M. van Luijk

arxiv:0902.2195 v1 · 2009-02-12 · math.GT · 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{3NQACPSLETWQGMYANIAL3PAN52}

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	2026-05-18T02:58:10.658459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db60013e4b24ed0333006a00bdbc0dee9b639d2d16e645b77ea23abbf29ef995

Aliases

arxiv: 0902.2195 · arxiv_version: 0902.2195v1 · doi: 10.48550/arxiv.0902.2195 · pith_short_12: 3NQACPSLETWQ · pith_short_16: 3NQACPSLETWQGMYA · pith_short_8: 3NQACPSL

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/3NQACPSLETWQGMYANIAL3PAN52 \
  | 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: db60013e4b24ed0333006a00bdbc0dee9b639d2d16e645b77ea23abbf29ef995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36921b92396c4c07461acc18a10f39cc5427b741e69a5f7b8cffa0875df90b02",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2009-02-12T19:09:29Z",
    "title_canon_sha256": "eb17ab36130eb701ccbccd60f3d8df2ce6f52af343f0a8501e0d4763af5fac58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2195",
    "kind": "arxiv",
    "version": 1
  }
}