Pith Number

pith:CPEHMRML

pith:2013:CPEHMRMLKLL4DNPLSLDIQ53DFL

not attested not anchored not stored refs pending

On the degree of the polynomial defining a planar algebraic curves of constant width

Magali Bardet, T\'erence Bayen

arxiv:1312.4358 v1 · 2013-12-16 · math.AG · 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{CPEHMRMLKLL4DNPLSLDIQ53DFL}

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	2026-05-18T03:04:34.805656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13c876458b52d7c1b5eb92c68877632ad722d6aa26141539ca30983043548f9c

Aliases

arxiv: 1312.4358 · arxiv_version: 1312.4358v1 · doi: 10.48550/arxiv.1312.4358 · pith_short_12: CPEHMRMLKLL4 · pith_short_16: CPEHMRMLKLL4DNPL · pith_short_8: CPEHMRML

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/CPEHMRMLKLL4DNPLSLDIQ53DFL \
  | 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: 13c876458b52d7c1b5eb92c68877632ad722d6aa26141539ca30983043548f9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5d49b6fb9fc6b686a7089f26d4782d51297389a900671441cd8c697d4bd42a6",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-12-16T13:43:53Z",
    "title_canon_sha256": "d16f1a3b7391966ae67a436e844da6c5374ac327cefa425d952da62a00126f80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4358",
    "kind": "arxiv",
    "version": 1
  }
}