Pith Number

pith:F64S7FLF

pith:1996:F64S7FLFY56AKYSPA22IXAH3TF

not attested not anchored not stored refs pending

Recursive Formulas for the Characteristic Numbers of Rational Plane Curves

Gary Kennedy, Lars Ernstr\"om

arxiv:alg-geom/9604019 v1 · 1996-04-28 · alg-geom · 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{F64S7FLFY56AKYSPA22IXAH3TF}

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	2026-05-18T01:09:21.789944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fb92f9565c77c05624f06b48b80fb99415cacb39169ca251dca40335fe39eca

Aliases

arxiv: alg-geom/9604019 · arxiv_version: alg-geom/9604019v1 · doi: 10.48550/arxiv.alg-geom/9604019 · pith_short_12: F64S7FLFY56A · pith_short_16: F64S7FLFY56AKYSP · pith_short_8: F64S7FLF

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/F64S7FLFY56AKYSPA22IXAH3TF \
  | 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: 2fb92f9565c77c05624f06b48b80fb99415cacb39169ca251dca40335fe39eca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d718dccd5f8ba966feb7413d6bc0013b789680b7231744ed13cd4656dc59061a",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1996-04-28T03:18:05Z",
    "title_canon_sha256": "a00408fffff504f7b35264da386a9253af0914989ffd15db8ccf5774fd224a5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9604019",
    "kind": "arxiv",
    "version": 1
  }
}