Pith Number

pith:CG4DZHU4

pith:2004:CG4DZHU452VMUVBLNXFV37ALGX

not attested not anchored not stored refs pending

A Compactness Criterion for Real Plane Algebraic Curves

John Stalker

arxiv:math/0404279 v1 · 2004-04-15 · 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{CG4DZHU452VMUVBLNXFV37ALGX}

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	2026-07-04T14:38:32.176382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11b83c9e9ceeaaca542b6dcb5dfc0b35cb3f6e4938d47a5de90750f89716517b

Aliases

arxiv: math/0404279 · arxiv_version: math/0404279v1 · doi: 10.48550/arxiv.math/0404279 · pith_short_12: CG4DZHU452VM · pith_short_16: CG4DZHU452VMUVBL · pith_short_8: CG4DZHU4

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/CG4DZHU452VMUVBLNXFV37ALGX \
  | 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: 11b83c9e9ceeaaca542b6dcb5dfc0b35cb3f6e4938d47a5de90750f89716517b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f8b2b88d8650824283d29b05c210b00b99ed98b73d3ab40462f767dd7b989a3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2004-04-15T14:06:01Z",
    "title_canon_sha256": "16d9741331c5d078ea12704690772351118890344efc46c145214ac7dc0f3089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0404279",
    "kind": "arxiv",
    "version": 1
  }
}