Pith Number

pith:GNL7YUQD

pith:2017:GNL7YUQDSAEJJLIN2GREJRDKPP

not attested not anchored not stored refs pending

The HOMFLY-PT polynomial is fixed-parameter tractable

Benjamin A. Burton

arxiv:1712.05776 v1 · 2017-12-15 · math.GT · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GNL7YUQDSAEJJLIN2GREJRDKPP}

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	2026-05-18T00:27:55.717534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3357fc5203900894ad0dd1a244c46a7be48dd2b2cfb28e862ad95e792229266c

Aliases

arxiv: 1712.05776 · arxiv_version: 1712.05776v1 · doi: 10.48550/arxiv.1712.05776 · pith_short_12: GNL7YUQDSAEJ · pith_short_16: GNL7YUQDSAEJJLIN · pith_short_8: GNL7YUQD

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/GNL7YUQDSAEJJLIN2GREJRDKPP \
  | 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: 3357fc5203900894ad0dd1a244c46a7be48dd2b2cfb28e862ad95e792229266c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c9b688397a5a15afd3e50a9770e1885d1acad1d48618632320dfcc4ec3f09c2",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-12-15T18:13:40Z",
    "title_canon_sha256": "99b9415641795b60101ab1a03042d3b5702484e89f5a52a4ec20de5b30e49849"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05776",
    "kind": "arxiv",
    "version": 1
  }
}