Pith Number

pith:NFUFLCJU

pith:2011:NFUFLCJUW72H67TP3WJ4PPGPY4

not attested not anchored not stored refs pending

Spectrum of plane curves via knot theory

Andras Nemethi, Maciej Borodzik

arxiv:1101.5471 v2 · 2011-01-28 · 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{NFUFLCJUW72H67TP3WJ4PPGPY4}

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	2026-05-18T02:58:01.231741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6968558934b7f47f7e6fdd93c7bccfc714c7db50c05f91b639bf3c526293dc22

Aliases

arxiv: 1101.5471 · arxiv_version: 1101.5471v2 · doi: 10.48550/arxiv.1101.5471 · pith_short_12: NFUFLCJUW72H · pith_short_16: NFUFLCJUW72H67TP · pith_short_8: NFUFLCJU

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/NFUFLCJUW72H67TP3WJ4PPGPY4 \
  | 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: 6968558934b7f47f7e6fdd93c7bccfc714c7db50c05f91b639bf3c526293dc22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54b433720e4eadb9437a926415cad8e173e3c35e7e086ccc01be9ba0e41cb2f7",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2011-01-28T08:32:28Z",
    "title_canon_sha256": "8ec4f9de3f96003ba5555a4e10679b4742fb83385427a45c51895690982d20ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5471",
    "kind": "arxiv",
    "version": 2
  }
}