Pith Number

pith:G32NRKNI

pith:2014:G32NRKNISDZNU3EHWQG7LEV2OU

not attested not anchored not stored refs pending

The Coolidge-Nagata conjecture, part I

Karol Palka

arxiv:1405.5917 v2 · 2014-05-22 · 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{G32NRKNISDZNU3EHWQG7LEV2OU}

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	2026-05-17T23:47:36.669673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36f4d8a9a890f2da6c87b40df592ba7527e4020b010b0d1563eca21d0017750c

Aliases

arxiv: 1405.5917 · arxiv_version: 1405.5917v2 · doi: 10.48550/arxiv.1405.5917 · pith_short_12: G32NRKNISDZN · pith_short_16: G32NRKNISDZNU3EH · pith_short_8: G32NRKNI

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/G32NRKNISDZNU3EHWQG7LEV2OU \
  | 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: 36f4d8a9a890f2da6c87b40df592ba7527e4020b010b0d1563eca21d0017750c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "508182bc9ce7736dd525240ab05520dd0f8ded1881d3a15fd3855df1ede6e4ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-05-22T21:49:39Z",
    "title_canon_sha256": "391e51f70f7510deba97ae29f43353db6742343c927d4f590715c0a40f69582f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5917",
    "kind": "arxiv",
    "version": 2
  }
}